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Experience Level
Entry Level
About the job
Agency is looking for a Retail Trade Specialist to contribute to a Freelance AI Trainer Project. This contract role centers on applying retail trade knowledge to help train and refine AI systems for retail applications.
What You Will Do
Use retail trade experience to inform and improve AI training processes
Work with teams focused on advancing AI capabilities for retail settings
Contribute insights that shape how AI understands and supports retail operations
Position Details
Freelance, project-based contract
Remote work within the United States
Flexible hours
This role offers a chance to influence retail technology while working independently and on your own schedule.
Role Overview Agency is looking for a Retail Trade Specialist to contribute to a Freelance AI Trainer Project. This contract role centers on applying retail trade knowledge to help train and refine AI systems for retail applications. What You Will Do Use retail trade experience to inform and improve AI training processes Work with teams focused on advancing …
Part-time|$73/hr - $73/hr|Remote|Remote — United States
We invite you to submit your CV in English, along with your English proficiency level.Mindrift specializes in connecting talented professionals with project-based opportunities in artificial intelligence for top tech companies, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is on a project basis, not a permanent employment arrangement.Role OverviewEach project presents unique challenges, and contributors may be tasked with the following:Crafting comprehensive statistical problems that mirror industry practices;Assessing AI solutions for accuracy, underlying assumptions, and limitations;Verifying computations or simulations utilizing Python libraries such as NumPy, Pandas, SciPy, Statsmodels, and Scikit-learn;Enhancing AI reasoning to meet industry-standard logical frameworks;Implementing structured scoring criteria for complex, multi-step problems.Ideal Candidate ProfileThis opportunity suits statisticians with Python experience who are open to part-time, non-permanent engagements. Preferred qualifications include:A degree in Statistics or a related discipline, such as Probability Theory, Mathematical Statistics, or Applied Statistics;A minimum of 3 years of professional experience in mathematics;Exceptional written English skills (C1/C2 level);Advanced Python skills for numerical validation;A reliable internet connection.Professional certifications (e.g., PStat, CAP, SAS Certifications) and experience with international or applied projects are advantageous.Application ProcessTo apply, please submit your application, pass any required qualifications, join a project, complete assigned tasks, and receive compensation.Expected CommitmentDuring active project phases, tasks are anticipated to require approximately 10–20 hours per week, based on project demands. This is an estimate and does not guarantee a specific workload.CompensationCompensation for contributions, with rates up to $73/hour*;Fixed project rates or individual rates, determined by project specifics;Some projects may include incentive payments.*Note: Rates may vary based on expertise, skills assessment, location, project requirements, and other factors. Highly specialized experts may receive higher rates. Lower rates may apply during onboarding or non-core project phases. Payment specifics will be provided for each project.
Contract|$8/hr - $65/hr|Remote|United States of America
Are you a seasoned insurance professional passionate about influencing the future of artificial intelligence? As large-scale language models transition from simple chatbots to transformative industry tools, your expertise in high-quality training data is essential. Together, we can enable tomorrow's AI to democratize access to world-class knowledge, adapt to changing regulations, and enhance workflows for insurance professionals across the globe. We are seeking insurance specialists who excel in areas such as policy analysis, claims management, risk assessment, underwriting, regulatory compliance, actuarial science, customer service, fraud detection, and insurance technology. Your role will involve probing advanced language models on complex topics including policy interpretation, claims adjudication, risk modeling, insurance products, loss control, and compliance audits—meticulously documenting each failure mode to strengthen model reasoning. On a daily basis, you will engage with the model on real-world insurance scenarios and theoretical industry inquiries, ensuring factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics. An ideal candidate will possess a bachelor’s or master’s degree in insurance, finance, risk management, or a closely related field; relevant industry certifications, hands-on claims experience, or practical field knowledge will signal your suitability. Exceptional communication skills, particularly in metacognitive contexts—where you articulate your reasoning—are crucial. Are you ready to leverage your insurance expertise to contribute to the foundational knowledge of future AI? Apply now and start educating the models that will educate the world.
Part-time|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Please submit your CV in English and include your English proficiency level. Mindrift offers project-based contract roles for professionals interested in AI development and research. This Freelance Research Physicist & AI Trainer position is remote and based in Virginia, United States. The work centers on supporting AI projects for technology companies by testing, evaluating, and improving AI systems. This is not a permanent role; assignments are structured as individual projects. Role overview This contract focuses on creating challenging physics problems for AI training and evaluation. Tasks may include: Developing original optics problems that reflect real-world research workflows Designing computationally intensive problems that require days or weeks to solve Building complex reasoning challenges in mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing problems on authentic research scenarios or practical physics applications Documenting each problem clearly and providing verified solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline Minimum of 2 years of professional experience in applied research or teaching Experience with numerical simulation techniques Ability to design problems that mirror actual research workflows Creative approach to building problems across physics fields Understanding of physics modeling and approximation methods Strong written English skills (C1 level or above) Application process Apply Complete qualifications Join a project Work on assigned tasks Receive payment Time commitment During active projects, expect to spend about 10–20 hours per week. Workload may fluctuate based on project requirements. Compensation Rates can reach up to $76 per hour, depending on experience, pace, and the complexity of the project. Actual rates vary by assignment.
Contract|$30/hr - $30/hr|Remote|Remote — San Antonio, Texas, United States
Please submit your resume in English and include your level of English proficiency.At toloka-ai, we connect talented individuals with project-based AI training opportunities for top-tier technology firms. Our focus is on evaluating and enhancing AI systems through innovative tasks. Please note that this is a project-based role and not permanent employment.Opportunity OverviewAs a Junior Journalist serving as an AI Trainer, you will play a crucial role in training AI models, influencing their ability to comprehend and produce human-like text. This position goes beyond conventional writing; you will create content that enhances AI's reasoning, accuracy, nuance, and clarity.Each project presents distinct challenges, and your responsibilities may include:Crafting original, clear, and well-researched responses in line with project specifications.Developing prompts that push AI capabilities.Establishing thorough scoring criteria to assess the accuracy of AI-generated responses.Adhering to style and quality standards to maintain consistency.Ideal Candidate ProfileThis role is ideal for those interested in part-time, temporary projects. We are looking for candidates who possess:A Bachelor’s degree in Journalism, Communications, Linguistics, Literature, or Education, ensuring a solid grasp of grammar and stylistic nuances.A minimum of 1 year of professional experience in Journalism, Communications, Public Relations, or related fields, with strong critical thinking and text analysis capabilities in English.Exceptional written English skills (C1/C2 proficiency).A stable internet connection.Application ProcessTo apply, please follow these steps: Submit your application → Complete qualifications → Join a project → Execute tasks → Receive compensation.Project CommitmentDuring active project phases, anticipate dedicating approximately 10–20 hours per week, contingent upon specific project requirements. This is an estimate and not a guaranteed workload.Compensation DetailsContributors can earn up to $30 per hour, contingent on experience and contribution level. Please note that compensation may vary across different projects based on their specific scope and complexity.
Join AfterQuery as a Strategic Projects Intern, where you will play a crucial role in shaping the future of artificial intelligence. This full-time internship in San Francisco during the Spring 2026 semester offers a unique opportunity to collaborate directly with our co-founder and CEO, Spencer, on pivotal operations and go-to-market strategies.Company OverviewAfterQuery is a pioneering research lab at the forefront of artificial intelligence, exploring innovative datasets and conducting groundbreaking experimentation. We cater to leading foundation model labs and work closely with cutting-edge AI organizations.Headquartered in San Francisco, CA, we have attracted investment from renowned backers such as Y Combinator and BoxGroup, alongside influential figures from Google DeepMind and Meta GenAI.Our founding team comprises experts from prestigious institutions including Jane Street, Meta, Citadel Securities, Google, Goldman Sachs, Morgan Stanley, Silver Lake, Berkeley Artificial Intelligence Research (BAIR), and Stanford Artificial Intelligence Laboratory (SAIL).Key ResponsibilitiesAssist in the creation of expert-generated datasets.Recruit and manage teams of domain experts across various specialized fields, including healthcare, software engineering, finance, and law.Work collaboratively with internal teams to advance innovative AI research projects such as UI-Bench and FinanceQA.Contribute to the design of effective sales processes and strategies, including sourcing potential new customers and developing targeted messaging and value propositions.Provide operational support to the founding team across various initiatives.
Contract|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Please submit your CV in English and specify your English proficiency level. This freelance, project-based role with toloka-ai (via Mindrift) centers on testing, evaluating, and improving AI systems for technology clients. The work is remote and based in Virginia, United States. This position does not offer permanent employment. Role overview Material Scientists in this role design and document engineering problems that mirror real-world workflows. The focus is on creating computational challenges that require Python for calculations and simulations. Problems should involve numerical methods, iterative solutions, and reflect real research questions or practical engineering scenarios. Each task must be validated using Python and established engineering libraries, with clear documentation and verified solutions. Key responsibilities Develop original materials engineering problems based on real applications Create complex challenges requiring Python programming Ensure tasks are computationally intensive and use numerical or iterative methods Design scenarios involving system design, optimization, and analysis Validate solutions with Python and relevant libraries Document problem statements and provide verified solutions Requirements Degree in Material Science or a related discipline Strong Python skills for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, Stata, or similar languages is a plus Minimum of 2 years’ relevant experience (applied, research, or teaching) Understanding of practical engineering constraints and approximations Excellent written English (C1 level or above) Process Apply Pass qualification(s) Join a project Complete tasks Receive compensation Time commitment Projects generally require 10–20 hours per week during active periods. Actual workload may change depending on project needs. Compensation Contributors can earn up to $76 per hour, depending on experience, pace, and project scope. Rates may vary according to complexity and required expertise.
Part-time|$69/hr - $69/hr|Remote|Remote — Virginia, United States
We invite you to submit your CV in English and specify your level of English proficiency.Mindrift serves as a bridge connecting talented specialists with project-based AI opportunities at leading technology firms, with a focus on assessing, evaluating, and enhancing AI systems. Please note that participation is project-based and does not constitute permanent employment.Role OverviewEach project presents unique challenges, and contributors may be tasked with:Crafting original computational engineering scenarios that replicate genuine engineering processes;Formulating problems that necessitate Python programming for solving engineering equations and simulations;Ensuring that problems are computationally demanding and utilize numerical methods or iterative solutions;Creating tasks related to system design, optimization, and analysis;Using real research challenges or practical applications from engineering as a foundation for the problems;Validating solutions with Python using standard engineering libraries;Clearly documenting problem statements and providing verified correct answers.QualificationsThis role is ideal for engineers experienced in Python who are open to part-time, non-permanent projects. The preferred qualifications include:A degree in Electrical Engineering or a related discipline;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or any programming language is also acceptable;A minimum of 2 years of relevant professional experience, including applied, research, or teaching roles;A solid understanding of practical engineering constraints and approximations;Strong written English skills (C1 level or above);Professional certifications (such as CMME, SAS Certifications, CAP) and experience in international or applied projects are considered advantageous.Application ProcessApply → Pass qualifications → Join a project → Complete tasks → Receive payment.Project Time CommitmentDuring active project phases, tasks are estimated to require approximately 10–20 hours per week, based on project specifications. This is an estimate and does not guarantee a fixed workload while the project is ongoing.CompensationContributors can earn up to $69 per hour, depending on their experience and contribution pace. Compensation may vary across projects based on scope, complexity, and required expertise; note that different projects on the platform may have varying pay levels.
About Stack AIStack AI is an innovative no-code platform that empowers users to design, test, and deploy AI workflows using large language models. Our intuitive drag-and-drop interface enables teams to seamlessly connect data sources with AI models, facilitating the development of production-grade applications such as chatbots, document processing pipelines, and database Q&A tools, all without the need for coding.As we transition from thousands to millions of users, we require a dedicated technical leader to enhance our backend systems. This is where you come into play.The RoleWe are in search of a Staff Backend Engineer to take ownership of our platform's core infrastructure. In this pivotal technical leadership role, you will influence our architectural framework, define engineering standards, and make key infrastructure decisions that will shape the scalability of Stack AI.You will collaborate directly with our founders and product leaders, navigating the balance between speed and sustainability within our fast-paced startup environment, where your contributions will have a significant impact on the entire product.What You'll DoDesign and scale core systems — Architect, develop, and manage the backend services that drive our no-code AI platform, encompassing everything from the API layer to the data pipeline.Lead identity and authentication infrastructure — Oversee our SSO, SAML, and OIDC integrations, ensuring our authentication framework meets enterprise-level standards and scales with our growing customer base.Establish technical direction — Set forth design patterns, service boundaries, data modeling strategies, and long-term infrastructure plans.Mentor and uplift the team — Enhance team performance through design reviews, collaborative coding sessions, knowledge sharing, and the establishment of best practices throughout backend engineering.Enhance reliability and observability — Proactively identify performance bottlenecks, optimize efficiency, and advance our infrastructure to prevent issues before they escalate.What We're Looking ForRequired Qualifications6+ years of backend engineering experience, demonstrating a history of operating at the Staff level or serving as a technical lead on complex, production systems.Extensive knowledge of SSO, SAML, and OIDC — with hands-on experience in building or managing identity and authentication systems.Comprehensive understanding of identity provider (IdP) architecture and enterprise authentication methodologies.
Part-time|$32/hr - $32/hr|Remote|Remote — United States
This role is exclusively available to candidates currently residing in the United States. Your location may influence both eligibility and compensation. Please submit your resume in English, indicating your proficiency level.Mindrift is on the lookout for talented Vibecode specialists to become integral members of the Tendem project (https://tendem.ai/), leading specialized data scraping initiatives within our innovative hybrid AI and human framework.As an AI Pilot—the title we use at Mindrift for this position—you will work closely with Tendem Agents managing routine tasks, while you apply your critical thinking, domain expertise, and quality assurance skills to ensure the delivery of precise and actionable insights.This part-time remote position is perfect for technical professionals with proven experience in web scraping, data extraction, and processing.About MindriftThe Mindrift platform bridges the gap between specialists and AI projects from leading technology innovators. Our vision is to harness the potential of Generative AI by leveraging real-world expertise from around the globe.Role OverviewThis freelance role focuses on the Tendem project. As a Vibe Code specialist, you will manage data scraping tasks that demand technical accuracy for web extraction and processing, utilizing various tools including our proprietary Apify and OpenRouter, as well as your own inventive strategies.Key ResponsibilitiesOversee comprehensive data extraction workflows across intricate websites, ensuring thorough coverage, accuracy, and dependable delivery of structured datasets.Utilize internal tools (Apify, OpenRouter) and custom workflows to expedite data collection, validation, and task execution while adhering to established requirements.Guarantee reliable extraction from dynamic and interactive web sources, adjusting methodologies as necessary to accommodate JavaScript-rendered content and evolving site behaviors.Implement data quality standards through validation checks, consistency controls, formatting adherence, and systematic verifications prior to data delivery.Scale scraping operations for extensive datasets utilizing efficient batching or parallel processing, monitor for failures, and maintain operational stability against minor site structure changes.Application ProcessTo apply, simply submit your application. If qualified, you will have the opportunity to contribute to projects that align with your technical expertise, on a flexible schedule. From coding and automation to refining AI outputs, you will play a pivotal role in enhancing AI capabilities and real-world applications.
Role Overview Agency is looking for a Healthcare and Social Assistance Specialist to support a freelance AI trainer project. This contract role focuses on training AI systems that serve healthcare providers and social assistance organizations across the United States. What You Will Do Apply your healthcare and social assistance experience to develop and refine AI tools. Collaborate with technology team members to align AI systems with real-world needs in the sector. Help shape solutions that improve service delivery for providers and communities. About the Project This freelance project offers a chance to influence the direction of healthcare technology and support better outcomes for people nationwide.
Role Overview Agency is seeking a Finance and Insurance Specialist to support a Freelance AI Trainer Project. This contract role calls for hands-on experience in finance and insurance, with a focus on helping AI systems better understand the sector’s rules, terminology, and real-world scenarios. What You Will Do Use your finance and insurance knowledge to guide AI training tasks Review, annotate, or create materials that help AI models interpret industry-specific concepts Ensure accuracy and relevance in financial and insurance data used for AI development Location This freelance project is open to candidates based in the United States of America.
About the Project Agency is seeking a Wholesale Trade Specialist for a freelance AI Trainer project. This contract role focuses on improving training modules with real-world wholesale trade knowledge. What You Will Do Apply wholesale trade experience to strengthen training content Work with a team to create materials that inform and engage participants Help tailor content to meet the needs of the intended audience Location This freelance position is open to candidates based in the United States.
The future of AI—whether in training or evaluation, classical ML or agentic workflows—begins with exceptional data quality.At HumanSignal, we are pioneering the platform that drives the creation, curation, and assessment of that data. Our tools are utilized by top AI teams to ensure models are based on authentic real-world signals rather than irrelevant noise.Our open-source product, Label Studio, has emerged as the industry standard for labeling and evaluating data across various modalities—ranging from text and images to time series and agents in environments. With over 250,000 users and hundreds of millions of labeled samples, it stands as the most widely adopted open-source solution for teams dedicated to building AI systems.Label Studio Enterprise enhances this foundation with the security, collaboration, and scalability features necessary to support mission-critical AI workflows—facilitating everything from model training datasets to evaluation test sets and continuous feedback loops. We began our journey before foundation models became mainstream, and we are intensifying our focus now that AI is transforming the world. If you are passionate about assisting leading AI teams in developing smarter, more accurate systems, we would be thrilled to connect with you.HumanSignal is establishing the world’s first dedicated data creation labs—facilities where expert annotators, domain specialists, and AI trainers produce the highest quality training data in the industry.We are seeking an AI Trainer Onboarding and Support Specialist to serve as the first point of contact for our expanding community of AI trainers. Your role will involve helping new trainers get started, addressing their inquiries, swiftly resolving issues, and ensuring that everyone has the resources they need to excel in their work.This position is fundamentally about people. You will be the friendly voice (or message) guiding individuals through their initial annotation tasks, troubleshooting technical problems, or assisting them with payment queries. You will collaborate across time zones to support a global workforce, playing a crucial role in making HumanSignal a desirable environment for talented individuals to contribute.If you genuinely enjoy helping others succeed and have a knack for problem-solving, this role could be a perfect fit for you.
Part-time|$73/hr - $73/hr|Remote|Remote — Virginia, United States
We invite you to submit your CV in English, detailing your proficiency level in the language.Mindrift is a dynamic platform that bridges specialized talents with project-based opportunities in artificial intelligence for top-tier technology firms. Our focus is on the assessment, testing, and enhancement of AI systems. Please note that roles are project-based and do not constitute permanent employment.Role OverviewEach project presents distinct challenges, and contributors may:Devise innovative computational statistics problems that reflect authentic mathematical research workflows;Craft problems that necessitate Python programming for resolution (utilizing libraries such as Numpy, SciPy, and SymPy);Guarantee that problems are computationally demanding and not solvable manually within a reasonable timeframe (days or weeks);Create problems that involve complex reasoning in domains such as number theory, combinatorics, graph theory, and numerical analysis;Base problems on genuine research challenges or practical applications in mathematical practice;Validate solutions using Python and standard mathematical libraries;Clearly document problem statements and provide verified correct solutions.Candidate ProfileThis opportunity is ideal for statistics professionals with Python experience who are open to part-time, non-permanent roles. Preferred qualifications include:A degree in Statistics or a related discipline;Proficiency in Python for numerical validation, with familiarity in MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any similar programming languages being acceptable;A minimum of 2 years of relevant professional experience, whether in applied work, research, or education;Strong command of written English (C1+ level);Professional certifications (e.g., CMME, SAS Certifications, CAP) and involvement in international or applied projects will be considered an advantage.Application ProcessApply → Pass qualifications → Join a project → Complete assigned tasks → Receive compensationProject CommitmentFor this project, the estimated effort is approximately 10–20 hours per week during active phases, contingent on project needs. This is an estimate and not a guaranteed workload, applicable only while the project is active.Compensation DetailsContributors can earn up to $73 per hour, contingent on their experience and contribution pace. Compensation varies by project based on scope, complexity, and required expertise. Other projects on the platform may offer differing earnings based on their specific requirements.
Opportunity OverviewJoin Handshake as a talented Godot Specialist, where you'll have the unique opportunity to contribute to AI research through flexible, project-based work. This role is ideal for individuals with hands-on experience in 2D and 3D game development, GDScript, or other interactive media. Your task will involve evaluating AI-generated content and providing insightful feedback that enhances AI's understanding of game development tasks and engine workflows.This position is ongoing and can seamlessly fit into your existing commitments.Who Should ApplyWe are seeking experienced Godot users who have previously held roles such as:Indie Developer or Game DesignerGame Developer or Interactive Media DeveloperSoftware Engineer or Computer Science graduate focused on game developmentCandidates should possess strong experience in one or more of the following areas:2D or 3D game development, GDScript, or Godot scene managementGame design, mechanics prototyping, or interactive media workflowsAnnotating or labeling game assets and development outputsReviewing game builds for accuracy, performance, or design consistencyYour ResponsibilitiesUtilize your Godot expertise to formulate tool-related questions and assess AI-generated responses for their accuracy and relevance to real-world indie game development and engine workflows.No prior AI or technical experience is necessary.Desired QualificationsWe are looking for candidates who meet the following criteria:Minimum of 3+ years of hands-on experience with Godot from either professional or freelance projectsSolid understanding of game development principles, GDScript, and engine workflowsExcellent written communication skills and a keen attention to detailAbility to work autonomously while adhering to written guidelines
Toloka AI is seeking a freelance Biology and Python Specialist to help train and develop AI models focused on biology. This contract role is fully remote and open to candidates based in the United States, including New York. Role overview This position centers on applying biological knowledge and Python skills to support the creation and improvement of AI systems. The work involves contributing to projects that use artificial intelligence in biological contexts. Location This is a remote freelance role. Candidates may work from anywhere in the United States.
Part-time|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Join Mindrift as a Freelance AI Trainer specializing in Physics!Are you ready to collaborate with leading tech companies on innovative AI projects? At Mindrift, we connect experts with exciting, project-based opportunities that focus on testing, enhancing, and evaluating AI systems. Please note that this is a project-based role, not permanent employment.Role Responsibilities:Devise original computational physics problems that simulate authentic research workflows.Craft problems necessitating Python programming for solutions, utilizing frameworks like Numpy, SciPy, and Sympy.Ensure problems are computationally demanding and cannot be manually solved in a reasonable timeframe.Conceive problems that involve complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics.Base problems on actual research challenges or physics applications.Validate solutions through Python using standard physics simulation libraries.Document problem statements meticulously and provide verified correct answers.
Role Overview Agency is looking for a Scientific and Technical Service Specialist to join a freelance project as an AI Trainer. This contract position focuses on building and delivering training programs that strengthen AI technologies. The work supports clients aiming to improve their operations with advanced AI solutions. What You Will Do Develop training materials and sessions for AI systems Deliver technical instruction to support AI capability growth Apply scientific and technical expertise to real-world AI projects Location This freelance role is open to candidates based in the United States.
Join our dynamic team as a Video Game Specialist for an exciting Freelance AI Trainer Project! We are looking for passionate and knowledgeable individuals who are deeply immersed in the gaming world to help train AI systems. Your expertise will play a crucial role in enhancing the gaming experience for players everywhere.
Role Overview Agency is looking for a Retail Trade Specialist to contribute to a Freelance AI Trainer Project. This contract role centers on applying retail trade knowledge to help train and refine AI systems for retail applications. What You Will Do Use retail trade experience to inform and improve AI training processes Work with teams focused on advancing …
Part-time|$73/hr - $73/hr|Remote|Remote — United States
We invite you to submit your CV in English, along with your English proficiency level.Mindrift specializes in connecting talented professionals with project-based opportunities in artificial intelligence for top tech companies, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is on a project basis, not a permanent employment arrangement.Role OverviewEach project presents unique challenges, and contributors may be tasked with the following:Crafting comprehensive statistical problems that mirror industry practices;Assessing AI solutions for accuracy, underlying assumptions, and limitations;Verifying computations or simulations utilizing Python libraries such as NumPy, Pandas, SciPy, Statsmodels, and Scikit-learn;Enhancing AI reasoning to meet industry-standard logical frameworks;Implementing structured scoring criteria for complex, multi-step problems.Ideal Candidate ProfileThis opportunity suits statisticians with Python experience who are open to part-time, non-permanent engagements. Preferred qualifications include:A degree in Statistics or a related discipline, such as Probability Theory, Mathematical Statistics, or Applied Statistics;A minimum of 3 years of professional experience in mathematics;Exceptional written English skills (C1/C2 level);Advanced Python skills for numerical validation;A reliable internet connection.Professional certifications (e.g., PStat, CAP, SAS Certifications) and experience with international or applied projects are advantageous.Application ProcessTo apply, please submit your application, pass any required qualifications, join a project, complete assigned tasks, and receive compensation.Expected CommitmentDuring active project phases, tasks are anticipated to require approximately 10–20 hours per week, based on project demands. This is an estimate and does not guarantee a specific workload.CompensationCompensation for contributions, with rates up to $73/hour*;Fixed project rates or individual rates, determined by project specifics;Some projects may include incentive payments.*Note: Rates may vary based on expertise, skills assessment, location, project requirements, and other factors. Highly specialized experts may receive higher rates. Lower rates may apply during onboarding or non-core project phases. Payment specifics will be provided for each project.
Contract|$8/hr - $65/hr|Remote|United States of America
Are you a seasoned insurance professional passionate about influencing the future of artificial intelligence? As large-scale language models transition from simple chatbots to transformative industry tools, your expertise in high-quality training data is essential. Together, we can enable tomorrow's AI to democratize access to world-class knowledge, adapt to changing regulations, and enhance workflows for insurance professionals across the globe. We are seeking insurance specialists who excel in areas such as policy analysis, claims management, risk assessment, underwriting, regulatory compliance, actuarial science, customer service, fraud detection, and insurance technology. Your role will involve probing advanced language models on complex topics including policy interpretation, claims adjudication, risk modeling, insurance products, loss control, and compliance audits—meticulously documenting each failure mode to strengthen model reasoning. On a daily basis, you will engage with the model on real-world insurance scenarios and theoretical industry inquiries, ensuring factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics. An ideal candidate will possess a bachelor’s or master’s degree in insurance, finance, risk management, or a closely related field; relevant industry certifications, hands-on claims experience, or practical field knowledge will signal your suitability. Exceptional communication skills, particularly in metacognitive contexts—where you articulate your reasoning—are crucial. Are you ready to leverage your insurance expertise to contribute to the foundational knowledge of future AI? Apply now and start educating the models that will educate the world.
Part-time|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Please submit your CV in English and include your English proficiency level. Mindrift offers project-based contract roles for professionals interested in AI development and research. This Freelance Research Physicist & AI Trainer position is remote and based in Virginia, United States. The work centers on supporting AI projects for technology companies by testing, evaluating, and improving AI systems. This is not a permanent role; assignments are structured as individual projects. Role overview This contract focuses on creating challenging physics problems for AI training and evaluation. Tasks may include: Developing original optics problems that reflect real-world research workflows Designing computationally intensive problems that require days or weeks to solve Building complex reasoning challenges in mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing problems on authentic research scenarios or practical physics applications Documenting each problem clearly and providing verified solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline Minimum of 2 years of professional experience in applied research or teaching Experience with numerical simulation techniques Ability to design problems that mirror actual research workflows Creative approach to building problems across physics fields Understanding of physics modeling and approximation methods Strong written English skills (C1 level or above) Application process Apply Complete qualifications Join a project Work on assigned tasks Receive payment Time commitment During active projects, expect to spend about 10–20 hours per week. Workload may fluctuate based on project requirements. Compensation Rates can reach up to $76 per hour, depending on experience, pace, and the complexity of the project. Actual rates vary by assignment.
Contract|$30/hr - $30/hr|Remote|Remote — San Antonio, Texas, United States
Please submit your resume in English and include your level of English proficiency.At toloka-ai, we connect talented individuals with project-based AI training opportunities for top-tier technology firms. Our focus is on evaluating and enhancing AI systems through innovative tasks. Please note that this is a project-based role and not permanent employment.Opportunity OverviewAs a Junior Journalist serving as an AI Trainer, you will play a crucial role in training AI models, influencing their ability to comprehend and produce human-like text. This position goes beyond conventional writing; you will create content that enhances AI's reasoning, accuracy, nuance, and clarity.Each project presents distinct challenges, and your responsibilities may include:Crafting original, clear, and well-researched responses in line with project specifications.Developing prompts that push AI capabilities.Establishing thorough scoring criteria to assess the accuracy of AI-generated responses.Adhering to style and quality standards to maintain consistency.Ideal Candidate ProfileThis role is ideal for those interested in part-time, temporary projects. We are looking for candidates who possess:A Bachelor’s degree in Journalism, Communications, Linguistics, Literature, or Education, ensuring a solid grasp of grammar and stylistic nuances.A minimum of 1 year of professional experience in Journalism, Communications, Public Relations, or related fields, with strong critical thinking and text analysis capabilities in English.Exceptional written English skills (C1/C2 proficiency).A stable internet connection.Application ProcessTo apply, please follow these steps: Submit your application → Complete qualifications → Join a project → Execute tasks → Receive compensation.Project CommitmentDuring active project phases, anticipate dedicating approximately 10–20 hours per week, contingent upon specific project requirements. This is an estimate and not a guaranteed workload.Compensation DetailsContributors can earn up to $30 per hour, contingent on experience and contribution level. Please note that compensation may vary across different projects based on their specific scope and complexity.
Join AfterQuery as a Strategic Projects Intern, where you will play a crucial role in shaping the future of artificial intelligence. This full-time internship in San Francisco during the Spring 2026 semester offers a unique opportunity to collaborate directly with our co-founder and CEO, Spencer, on pivotal operations and go-to-market strategies.Company OverviewAfterQuery is a pioneering research lab at the forefront of artificial intelligence, exploring innovative datasets and conducting groundbreaking experimentation. We cater to leading foundation model labs and work closely with cutting-edge AI organizations.Headquartered in San Francisco, CA, we have attracted investment from renowned backers such as Y Combinator and BoxGroup, alongside influential figures from Google DeepMind and Meta GenAI.Our founding team comprises experts from prestigious institutions including Jane Street, Meta, Citadel Securities, Google, Goldman Sachs, Morgan Stanley, Silver Lake, Berkeley Artificial Intelligence Research (BAIR), and Stanford Artificial Intelligence Laboratory (SAIL).Key ResponsibilitiesAssist in the creation of expert-generated datasets.Recruit and manage teams of domain experts across various specialized fields, including healthcare, software engineering, finance, and law.Work collaboratively with internal teams to advance innovative AI research projects such as UI-Bench and FinanceQA.Contribute to the design of effective sales processes and strategies, including sourcing potential new customers and developing targeted messaging and value propositions.Provide operational support to the founding team across various initiatives.
Contract|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Please submit your CV in English and specify your English proficiency level. This freelance, project-based role with toloka-ai (via Mindrift) centers on testing, evaluating, and improving AI systems for technology clients. The work is remote and based in Virginia, United States. This position does not offer permanent employment. Role overview Material Scientists in this role design and document engineering problems that mirror real-world workflows. The focus is on creating computational challenges that require Python for calculations and simulations. Problems should involve numerical methods, iterative solutions, and reflect real research questions or practical engineering scenarios. Each task must be validated using Python and established engineering libraries, with clear documentation and verified solutions. Key responsibilities Develop original materials engineering problems based on real applications Create complex challenges requiring Python programming Ensure tasks are computationally intensive and use numerical or iterative methods Design scenarios involving system design, optimization, and analysis Validate solutions with Python and relevant libraries Document problem statements and provide verified solutions Requirements Degree in Material Science or a related discipline Strong Python skills for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, Stata, or similar languages is a plus Minimum of 2 years’ relevant experience (applied, research, or teaching) Understanding of practical engineering constraints and approximations Excellent written English (C1 level or above) Process Apply Pass qualification(s) Join a project Complete tasks Receive compensation Time commitment Projects generally require 10–20 hours per week during active periods. Actual workload may change depending on project needs. Compensation Contributors can earn up to $76 per hour, depending on experience, pace, and project scope. Rates may vary according to complexity and required expertise.
Part-time|$69/hr - $69/hr|Remote|Remote — Virginia, United States
We invite you to submit your CV in English and specify your level of English proficiency.Mindrift serves as a bridge connecting talented specialists with project-based AI opportunities at leading technology firms, with a focus on assessing, evaluating, and enhancing AI systems. Please note that participation is project-based and does not constitute permanent employment.Role OverviewEach project presents unique challenges, and contributors may be tasked with:Crafting original computational engineering scenarios that replicate genuine engineering processes;Formulating problems that necessitate Python programming for solving engineering equations and simulations;Ensuring that problems are computationally demanding and utilize numerical methods or iterative solutions;Creating tasks related to system design, optimization, and analysis;Using real research challenges or practical applications from engineering as a foundation for the problems;Validating solutions with Python using standard engineering libraries;Clearly documenting problem statements and providing verified correct answers.QualificationsThis role is ideal for engineers experienced in Python who are open to part-time, non-permanent projects. The preferred qualifications include:A degree in Electrical Engineering or a related discipline;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or any programming language is also acceptable;A minimum of 2 years of relevant professional experience, including applied, research, or teaching roles;A solid understanding of practical engineering constraints and approximations;Strong written English skills (C1 level or above);Professional certifications (such as CMME, SAS Certifications, CAP) and experience in international or applied projects are considered advantageous.Application ProcessApply → Pass qualifications → Join a project → Complete tasks → Receive payment.Project Time CommitmentDuring active project phases, tasks are estimated to require approximately 10–20 hours per week, based on project specifications. This is an estimate and does not guarantee a fixed workload while the project is ongoing.CompensationContributors can earn up to $69 per hour, depending on their experience and contribution pace. Compensation may vary across projects based on scope, complexity, and required expertise; note that different projects on the platform may have varying pay levels.
About Stack AIStack AI is an innovative no-code platform that empowers users to design, test, and deploy AI workflows using large language models. Our intuitive drag-and-drop interface enables teams to seamlessly connect data sources with AI models, facilitating the development of production-grade applications such as chatbots, document processing pipelines, and database Q&A tools, all without the need for coding.As we transition from thousands to millions of users, we require a dedicated technical leader to enhance our backend systems. This is where you come into play.The RoleWe are in search of a Staff Backend Engineer to take ownership of our platform's core infrastructure. In this pivotal technical leadership role, you will influence our architectural framework, define engineering standards, and make key infrastructure decisions that will shape the scalability of Stack AI.You will collaborate directly with our founders and product leaders, navigating the balance between speed and sustainability within our fast-paced startup environment, where your contributions will have a significant impact on the entire product.What You'll DoDesign and scale core systems — Architect, develop, and manage the backend services that drive our no-code AI platform, encompassing everything from the API layer to the data pipeline.Lead identity and authentication infrastructure — Oversee our SSO, SAML, and OIDC integrations, ensuring our authentication framework meets enterprise-level standards and scales with our growing customer base.Establish technical direction — Set forth design patterns, service boundaries, data modeling strategies, and long-term infrastructure plans.Mentor and uplift the team — Enhance team performance through design reviews, collaborative coding sessions, knowledge sharing, and the establishment of best practices throughout backend engineering.Enhance reliability and observability — Proactively identify performance bottlenecks, optimize efficiency, and advance our infrastructure to prevent issues before they escalate.What We're Looking ForRequired Qualifications6+ years of backend engineering experience, demonstrating a history of operating at the Staff level or serving as a technical lead on complex, production systems.Extensive knowledge of SSO, SAML, and OIDC — with hands-on experience in building or managing identity and authentication systems.Comprehensive understanding of identity provider (IdP) architecture and enterprise authentication methodologies.
Part-time|$32/hr - $32/hr|Remote|Remote — United States
This role is exclusively available to candidates currently residing in the United States. Your location may influence both eligibility and compensation. Please submit your resume in English, indicating your proficiency level.Mindrift is on the lookout for talented Vibecode specialists to become integral members of the Tendem project (https://tendem.ai/), leading specialized data scraping initiatives within our innovative hybrid AI and human framework.As an AI Pilot—the title we use at Mindrift for this position—you will work closely with Tendem Agents managing routine tasks, while you apply your critical thinking, domain expertise, and quality assurance skills to ensure the delivery of precise and actionable insights.This part-time remote position is perfect for technical professionals with proven experience in web scraping, data extraction, and processing.About MindriftThe Mindrift platform bridges the gap between specialists and AI projects from leading technology innovators. Our vision is to harness the potential of Generative AI by leveraging real-world expertise from around the globe.Role OverviewThis freelance role focuses on the Tendem project. As a Vibe Code specialist, you will manage data scraping tasks that demand technical accuracy for web extraction and processing, utilizing various tools including our proprietary Apify and OpenRouter, as well as your own inventive strategies.Key ResponsibilitiesOversee comprehensive data extraction workflows across intricate websites, ensuring thorough coverage, accuracy, and dependable delivery of structured datasets.Utilize internal tools (Apify, OpenRouter) and custom workflows to expedite data collection, validation, and task execution while adhering to established requirements.Guarantee reliable extraction from dynamic and interactive web sources, adjusting methodologies as necessary to accommodate JavaScript-rendered content and evolving site behaviors.Implement data quality standards through validation checks, consistency controls, formatting adherence, and systematic verifications prior to data delivery.Scale scraping operations for extensive datasets utilizing efficient batching or parallel processing, monitor for failures, and maintain operational stability against minor site structure changes.Application ProcessTo apply, simply submit your application. If qualified, you will have the opportunity to contribute to projects that align with your technical expertise, on a flexible schedule. From coding and automation to refining AI outputs, you will play a pivotal role in enhancing AI capabilities and real-world applications.
Role Overview Agency is looking for a Healthcare and Social Assistance Specialist to support a freelance AI trainer project. This contract role focuses on training AI systems that serve healthcare providers and social assistance organizations across the United States. What You Will Do Apply your healthcare and social assistance experience to develop and refine AI tools. Collaborate with technology team members to align AI systems with real-world needs in the sector. Help shape solutions that improve service delivery for providers and communities. About the Project This freelance project offers a chance to influence the direction of healthcare technology and support better outcomes for people nationwide.
Role Overview Agency is seeking a Finance and Insurance Specialist to support a Freelance AI Trainer Project. This contract role calls for hands-on experience in finance and insurance, with a focus on helping AI systems better understand the sector’s rules, terminology, and real-world scenarios. What You Will Do Use your finance and insurance knowledge to guide AI training tasks Review, annotate, or create materials that help AI models interpret industry-specific concepts Ensure accuracy and relevance in financial and insurance data used for AI development Location This freelance project is open to candidates based in the United States of America.
About the Project Agency is seeking a Wholesale Trade Specialist for a freelance AI Trainer project. This contract role focuses on improving training modules with real-world wholesale trade knowledge. What You Will Do Apply wholesale trade experience to strengthen training content Work with a team to create materials that inform and engage participants Help tailor content to meet the needs of the intended audience Location This freelance position is open to candidates based in the United States.
The future of AI—whether in training or evaluation, classical ML or agentic workflows—begins with exceptional data quality.At HumanSignal, we are pioneering the platform that drives the creation, curation, and assessment of that data. Our tools are utilized by top AI teams to ensure models are based on authentic real-world signals rather than irrelevant noise.Our open-source product, Label Studio, has emerged as the industry standard for labeling and evaluating data across various modalities—ranging from text and images to time series and agents in environments. With over 250,000 users and hundreds of millions of labeled samples, it stands as the most widely adopted open-source solution for teams dedicated to building AI systems.Label Studio Enterprise enhances this foundation with the security, collaboration, and scalability features necessary to support mission-critical AI workflows—facilitating everything from model training datasets to evaluation test sets and continuous feedback loops. We began our journey before foundation models became mainstream, and we are intensifying our focus now that AI is transforming the world. If you are passionate about assisting leading AI teams in developing smarter, more accurate systems, we would be thrilled to connect with you.HumanSignal is establishing the world’s first dedicated data creation labs—facilities where expert annotators, domain specialists, and AI trainers produce the highest quality training data in the industry.We are seeking an AI Trainer Onboarding and Support Specialist to serve as the first point of contact for our expanding community of AI trainers. Your role will involve helping new trainers get started, addressing their inquiries, swiftly resolving issues, and ensuring that everyone has the resources they need to excel in their work.This position is fundamentally about people. You will be the friendly voice (or message) guiding individuals through their initial annotation tasks, troubleshooting technical problems, or assisting them with payment queries. You will collaborate across time zones to support a global workforce, playing a crucial role in making HumanSignal a desirable environment for talented individuals to contribute.If you genuinely enjoy helping others succeed and have a knack for problem-solving, this role could be a perfect fit for you.
Part-time|$73/hr - $73/hr|Remote|Remote — Virginia, United States
We invite you to submit your CV in English, detailing your proficiency level in the language.Mindrift is a dynamic platform that bridges specialized talents with project-based opportunities in artificial intelligence for top-tier technology firms. Our focus is on the assessment, testing, and enhancement of AI systems. Please note that roles are project-based and do not constitute permanent employment.Role OverviewEach project presents distinct challenges, and contributors may:Devise innovative computational statistics problems that reflect authentic mathematical research workflows;Craft problems that necessitate Python programming for resolution (utilizing libraries such as Numpy, SciPy, and SymPy);Guarantee that problems are computationally demanding and not solvable manually within a reasonable timeframe (days or weeks);Create problems that involve complex reasoning in domains such as number theory, combinatorics, graph theory, and numerical analysis;Base problems on genuine research challenges or practical applications in mathematical practice;Validate solutions using Python and standard mathematical libraries;Clearly document problem statements and provide verified correct solutions.Candidate ProfileThis opportunity is ideal for statistics professionals with Python experience who are open to part-time, non-permanent roles. Preferred qualifications include:A degree in Statistics or a related discipline;Proficiency in Python for numerical validation, with familiarity in MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any similar programming languages being acceptable;A minimum of 2 years of relevant professional experience, whether in applied work, research, or education;Strong command of written English (C1+ level);Professional certifications (e.g., CMME, SAS Certifications, CAP) and involvement in international or applied projects will be considered an advantage.Application ProcessApply → Pass qualifications → Join a project → Complete assigned tasks → Receive compensationProject CommitmentFor this project, the estimated effort is approximately 10–20 hours per week during active phases, contingent on project needs. This is an estimate and not a guaranteed workload, applicable only while the project is active.Compensation DetailsContributors can earn up to $73 per hour, contingent on their experience and contribution pace. Compensation varies by project based on scope, complexity, and required expertise. Other projects on the platform may offer differing earnings based on their specific requirements.
Opportunity OverviewJoin Handshake as a talented Godot Specialist, where you'll have the unique opportunity to contribute to AI research through flexible, project-based work. This role is ideal for individuals with hands-on experience in 2D and 3D game development, GDScript, or other interactive media. Your task will involve evaluating AI-generated content and providing insightful feedback that enhances AI's understanding of game development tasks and engine workflows.This position is ongoing and can seamlessly fit into your existing commitments.Who Should ApplyWe are seeking experienced Godot users who have previously held roles such as:Indie Developer or Game DesignerGame Developer or Interactive Media DeveloperSoftware Engineer or Computer Science graduate focused on game developmentCandidates should possess strong experience in one or more of the following areas:2D or 3D game development, GDScript, or Godot scene managementGame design, mechanics prototyping, or interactive media workflowsAnnotating or labeling game assets and development outputsReviewing game builds for accuracy, performance, or design consistencyYour ResponsibilitiesUtilize your Godot expertise to formulate tool-related questions and assess AI-generated responses for their accuracy and relevance to real-world indie game development and engine workflows.No prior AI or technical experience is necessary.Desired QualificationsWe are looking for candidates who meet the following criteria:Minimum of 3+ years of hands-on experience with Godot from either professional or freelance projectsSolid understanding of game development principles, GDScript, and engine workflowsExcellent written communication skills and a keen attention to detailAbility to work autonomously while adhering to written guidelines
Toloka AI is seeking a freelance Biology and Python Specialist to help train and develop AI models focused on biology. This contract role is fully remote and open to candidates based in the United States, including New York. Role overview This position centers on applying biological knowledge and Python skills to support the creation and improvement of AI systems. The work involves contributing to projects that use artificial intelligence in biological contexts. Location This is a remote freelance role. Candidates may work from anywhere in the United States.
Part-time|$76/hr - $76/hr|Remote|Remote — Virginia, United States
Join Mindrift as a Freelance AI Trainer specializing in Physics!Are you ready to collaborate with leading tech companies on innovative AI projects? At Mindrift, we connect experts with exciting, project-based opportunities that focus on testing, enhancing, and evaluating AI systems. Please note that this is a project-based role, not permanent employment.Role Responsibilities:Devise original computational physics problems that simulate authentic research workflows.Craft problems necessitating Python programming for solutions, utilizing frameworks like Numpy, SciPy, and Sympy.Ensure problems are computationally demanding and cannot be manually solved in a reasonable timeframe.Conceive problems that involve complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics.Base problems on actual research challenges or physics applications.Validate solutions through Python using standard physics simulation libraries.Document problem statements meticulously and provide verified correct answers.
Role Overview Agency is looking for a Scientific and Technical Service Specialist to join a freelance project as an AI Trainer. This contract position focuses on building and delivering training programs that strengthen AI technologies. The work supports clients aiming to improve their operations with advanced AI solutions. What You Will Do Develop training materials and sessions for AI systems Deliver technical instruction to support AI capability growth Apply scientific and technical expertise to real-world AI projects Location This freelance role is open to candidates based in the United States.
Join our dynamic team as a Video Game Specialist for an exciting Freelance AI Trainer Project! We are looking for passionate and knowledgeable individuals who are deeply immersed in the gaming world to help train AI systems. Your expertise will play a crucial role in enhancing the gaming experience for players everywhere.