Freelance AI Trainer - Data Annotation Specialist

Toloka Annotators is looking for a Freelance AI Trainer - Data Annotation Specialist to help build better AI models by producing well-labeled datasets. This remote position is open to candidates based in Sweden. Key responsibilities Label and annotate various types of data for AI training and evaluation tasks Support the accuracy and performance of machine learning models through careful data preparation Work remotely with an international team of collaborators What we value Keen attention to detail when handling data Interest in AI technologies and maintaining data quality Ability to work independently from a home office Residence in Sweden Work arrangement This freelance role offers the flexibility to work from anywhere within Sweden. Team members connect and collaborate online with colleagues worldwide.

Please submit your resume in English and include your English proficiency level. Toloka connects people around the world with freelance online projects that support the training and improvement of artificial intelligence systems. This remote, project-based position is open to candidates located in Sweden. As a Freelance AI Trainer and Annotator (English), the work centers on helping AI systems better understand language and content. Assignments may involve reviewing AI-generated responses, evaluating their accuracy, and comparing different outputs. Main responsibilities Review and analyze data, which can include text, images, or videos. Label or categorize content based on detailed project instructions. Flag and report content that is inaccurate, sensitive, inappropriate, or unclear. This is a freelance, project-based role. Tasks are available only when projects are active, and invitations to participate depend on your profile and current opportunities. Compensation Pay rates depend on project scope and required expertise. AI trainers can earn up to $22 per hour.

Please submit your CV in English and include your English proficiency level. Toloka AI, in partnership with Mindrift, offers project-based freelance opportunities for skilled professionals to help test, evaluate, and improve AI systems for leading technology companies. This is a freelance, project-based position and does not lead to permanent employment. Role overview As a Freelance AI Trainer (Data Scientist) working remotely from Sweden, assignments focus on building and refining AI models through real-world data science challenges. Typical projects include: Designing computational data science problems that mirror analytical workflows in sectors like telecom, finance, government, e-commerce, and healthcare. Developing problems that require Python solutions, using libraries such as Pandas, Numpy, Scipy, Scikit-learn, Statsmodels, Matplotlib, and Seaborn. Ensuring problems are computationally demanding, taking days or weeks to solve, and not just manual calculations. Creating scenarios that call for complex reasoning in data processing, statistical analysis, feature engineering, predictive modeling, and drawing insights. Making sure all challenges are deterministic and reproducible, either by avoiding randomness or by using fixed random seeds. Basing tasks on real business needs, including customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Covering the full data science workflow: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Including big data processing scenarios that need scalable computational approaches. Validating solutions in Python with standard data science libraries and statistical techniques. Documenting problem statements clearly, with realistic business contexts and verified solutions. Requirements Minimum 5 years of hands-on data science experience with demonstrated business impact. A portfolio of completed projects or publications showing real-world problem solving. Advanced Python skills for data science (including pandas, numpy, scipy, scikit-learn, statsmodels). Strong background in statistical analysis and machine learning, with deep knowledge of algorithms and their uses. Proficiency in SQL and database operations for data manipulation and analysis. Experience with Generative AI, such as LLMs, Retrieval-Augmented Generation, prompt engineering, and vector databases. Understanding of MLOps and model deployment processes. Familiarity with frameworks like TensorFlow, PyTorch, and LangChain. Excellent written English (C1 level or higher). How to apply Apply Complete qualifications Join a project Fulfill tasks Receive payment

Please submit your CV in English and indicate your English proficiency level. toloka-ai, through Mindrift, offers freelance, project-based work for specialists interested in evaluating and improving AI systems. This contract role is remote and based in Sweden. The position is not a permanent employment arrangement, and work is structured around specific projects for leading technology companies. Role overview This freelance AI Trainer position focuses on developing and validating advanced computational statistics problems. Work centers on creating original tasks inspired by real mathematical research, often requiring Python programming and the use of libraries such as Numpy, SciPy, or Sympy. Projects may involve computationally intensive problems that take significant time to solve, with an emphasis on areas like number theory, combinatorics, graph theory, and numerical analysis. What you will do Create original computational statistics problems modeled on authentic research workflows Develop problems that require Python-based solutions, using libraries such as Numpy, SciPy, or Sympy Design tasks that may take days or weeks to solve due to their complexity Write problem statements involving advanced reasoning in mathematics and numerical analysis Base tasks on real research challenges or practical mathematical applications Validate all solutions using Python and established mathematical libraries Document each problem clearly and provide verified, accurate answers Requirements Degree in Statistics or a related field Proficiency in Python for numerical validation (experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is also considered) Minimum of 2 years of professional experience, which can include applied research or teaching Strong written English skills at C1 level or higher Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are a plus How to join Application Qualification Assessment Project Participation Task Completion Compensation Project details During active project periods, tasks typically require 10-20 hours per week. Actual workload may vary and is not guaranteed outside of active project phases. Compensation Earnings can reach up to $50 per hour, depending on expertise and pace. Compensation rates may vary by project, based on complexity, scope, and required skills.

Join our dynamic team as an AI Data Specialist and contribute to the enhancement of AI-generated content in Swedish. Job Type: FreelanceLocation: Work from homeWork Schedule: Part-time - 10+ hours per week. Enjoy the flexibility to work at your convenience.Start Date: Immediate availabilityDuration: To be confirmedRate: Compensation varies based on location. Contribute to the Future of AIAre you a student, recent graduate, stay-at-home parent, gig worker, or professional seeking flexible remote opportunities? If you're passionate about shaping the evolution and safety of contemporary AI models, we want to hear from you! Your ResponsibilitiesIn this role, you will perform a variety of data-centric tasks, including:Data collection, evaluation, and annotation.Conducting pairwise comparisons.Executing counting tasks.Tagging and labeling objects across various content types (audio, video, images, or collected data). QualificationsNative-level fluency in SwedishProficient in English (Fluent or advanced proficiency, levels B2–C2)Experience in AI & Data (Preferred): Familiarity with machine learning tasks, data collection and preprocessing, quality assurance, and data annotation. What We ProvideFlexible working hoursPotential to earn additional incomePrompt paymentIdeal for students, part-timers, or stay-at-home parents

Toloka AI is looking for a freelance specialist with a strong background in both biology and Python programming. This remote role is based in Sweden and centers on developing and improving materials used to train artificial intelligence systems. Role overview This position focuses on creating and refining training content that combines biological science concepts with Python. The work supports AI development by ensuring materials are accurate and effective. What you will do Develop AI training materials that draw on biology and Python expertise Review and enhance existing content to improve clarity and accuracy Who this role suits This freelance opportunity is well suited to those interested in the overlap between biological sciences and artificial intelligence, and who enjoy working independently on specialized projects.

Role overview Mindrift is hiring an AI Workflow Engineer (AI Pilot) to contribute to the Tendem project. This freelance, part-time position is open to candidates based in Sweden and is fully remote. The role centers on building automation systems that blend large language models (LLMs) with human expertise. For more information about the project, visit https://tendem.ai/. What you will do Work closely with Tendem Agents to design and refine automation workflows using advanced LLMs Use structured thinking to develop, test, and enhance AI-driven processes Create and optimize prompts for various automation needs Maintain quality control and ensure reliability in deployed AI workflows Requirements Experience integrating LLMs and working with AI automation systems Strong skills in prompt engineering and workflow design Attention to detail, especially in quality control and process improvement Ability to work effectively in environments where AI and human input intersect Location and commitment Remote role based in Sweden Part-time, freelance arrangement

Toloka AI seeks a freelance AI trainer who combines civil engineering experience with strong Python programming skills. This contract position is fully remote and open to candidates based in Sweden. Role overview This role centers on applying civil engineering knowledge and Python expertise to help train and refine artificial intelligence systems. The work supports the development of AI applications by contributing specialized insights from both fields. What you will do Apply civil engineering concepts and Python programming to improve AI models Offer subject matter expertise to shape and support AI application development Location This is a remote position for candidates located in Sweden.

Toloka AI seeks a Freelance Mathematics Expert - AI Trainer to help advance AI systems. This is a remote contract position for candidates based in Sweden. Role overview This role centers on applying advanced mathematics to support AI model development. The work involves analyzing complex problems and bringing subject matter expertise to improve the accuracy and reliability of AI solutions. What you will do Use deep mathematical knowledge to train and refine AI models Contribute to projects that demand strong analytical and problem-solving skills Share expertise to help ensure AI systems deliver reliable results About Toloka AI Toloka AI creates data-driven tools for artificial intelligence. The company values input from experts who can strengthen the quality and dependability of AI technologies.

Are you a passionate expert in the Danish language ready to influence the future of artificial intelligence? As large-scale language models transition from simple chatbots to advanced engines of linguistic exploration, your contribution will be instrumental. By providing high-quality training data, you can help create AI that democratizes education, advances research, and enhances communication for Danish speakers around the globe.We are seeking Danish language specialists who possess a deep understanding of Danish grammar, syntax, morphology, spelling, phonology, and pragmatics. You will engage with advanced language models, challenging them on aspects such as verb conjugation, sentence structure, levels of formality, regional dialects, word order, and the subtleties of the Danish writing system. Your role will involve documenting errors to strengthen the model's reasoning capabilities.Your daily tasks will include conversing with the model on various linguistic scenarios, verifying factual accuracy and logical coherence, capturing reproducible error patterns, and proposing enhancements to our prompt engineering and evaluation methods.An advanced degree (Master's or PhD) in Danish language, linguistics, or a closely related field is preferred. Experience with peer-reviewed publications, teaching, or practical linguistic analysis projects will be considered beneficial. Clear communication, especially in demonstrating your analytical process, is crucial.If you're ready to leverage your Danish language expertise to build the knowledge base for the next generation of AI, apply now and be part of a project that will educate the world.

Are you a passionate expert in the Swedish language looking to influence the future of artificial intelligence? As advanced language models transition from simple chatbots to sophisticated tools for linguistic exploration, your knowledge can help create high-quality training data. This data will empower AI to provide world-class education, stay aligned with groundbreaking research, and enhance communication for Swedish speakers globally. Your expertise is the catalyst for this evolution, and we invite you to play a pivotal role in shaping the next generation of AI. We are seeking Swedish language specialists who are deeply knowledgeable in phonology, morphology, syntax, semantics, pragmatics, sociolinguistics, and language acquisition. You will engage with advanced language models on various linguistic challenges, including verb conjugation, noun-adjective agreement, sentence structure, regional dialects, word order, idiomatic expressions, and cultural context. Your task will involve documenting challenges faced by the models to improve their reasoning capabilities. On a typical day, you will interact with the model on various language scenarios, assess the accuracy of facts and logic, document reproducible errors, and propose enhancements to our prompt engineering and evaluation criteria. A Master’s degree or PhD in Swedish language, linguistics, or a closely related field is preferred. Experience in teaching, peer-reviewed publications, or practical linguistic analysis projects will demonstrate your suitability for this role. Effective metacognitive communication—showing your work—is crucial for success. Are you ready to channel your Swedish language expertise into the foundational knowledge for the AI of tomorrow? Apply today and contribute to the model that will educate the world. We offer an hourly pay range of $8 to $65, with the specific rate determined based on your experience, expertise, and geographic location. Please note that final offer amounts may vary within the stated pay range. As a contractor, you will need to provide a secure computer and high-speed internet; company-sponsored benefits such as health insurance and PTO do not apply.

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to support projects that connect journalism with artificial intelligence. This contract position is fully remote and open to candidates living in Sweden. Role overview This role centers on collaborating with professionals who are advancing AI-driven journalism. The work involves both content creation and the development of tools that assist in the evolution of news reporting through technology. What you will do Collaborate with experienced team members on journalism initiatives powered by AI Create and curate written content to help train and refine AI models Offer feedback and ideas to improve tools and workflows for the team Requirements Interest in journalism and new technology Ability to work independently and communicate effectively online Residence in Sweden

Please submit your CV in English and indicate your English proficiency level. Mindrift connects experienced professionals with project-based AI work for leading technology companies. Assignments focus on assessing, evaluating, and improving AI systems. This is a non-permanent, project-based role. Role overview The Freelance AI Trainer - Research Physicist contributes to diverse projects, each with its own objectives. Typical responsibilities include: Writing original optics problems that reflect real research processes in physics Designing computationally challenging problems that may require days or weeks to solve Developing complex scenarios involving detailed reasoning in areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics Creating problems based on real-world research challenges or relevant situations from optics and physics Clearly documenting problem statements and providing verified solutions Requirements Degree in Physics (Theoretical, Experimental, or Computational) or a closely related field Minimum of 2 years of professional experience (applied, research, or teaching) Background in numerical simulation methods Ability to design problems that mirror actual physics research workflows Creative approach to problem design across multiple physics disciplines Familiarity with physics modeling and approximation techniques Strong English writing skills at C1 level or higher Project commitment Assignments typically require 10–20 hours per week during active project periods. Actual workload depends on project needs and may vary outside active phases. Compensation Rates can reach up to $45 per hour, depending on experience and project pace. Compensation varies according to project complexity and required expertise. Other projects on the platform may offer different pay based on their specific requirements. Application process Apply Pass qualifications Join a project Complete tasks Receive payment

Please submit your CV in English and specify your English proficiency level. Toloka AI offers project-based freelance roles for specialists in artificial intelligence. The company focuses on testing, evaluating, and improving AI systems for major technology clients. This particular position is freelance and project-based, not a permanent employment offer. Role overview The Freelance Optical Engineer - AI Trainer works on projects that involve designing optical and physics problems for AI training. Assignments often include: Developing original optical problems that reflect real-world research workflows in physics Creating computationally intensive challenges unsuitable for manual solving Formulating problems requiring advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Referencing real research challenges or practical applications in optics and physics Writing clear problem statements and supplying accurate, validated solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field Minimum of 2 years of professional experience in applied, research, or teaching roles Strong background in numerical simulation methods Ability to design problems that mirror real research workflows in physics Creative approach to problem design across multiple physics domains Familiarity with physics modeling and approximation techniques Excellent written English skills (C1 level or above) Application process Apply Pass qualification(s) Join a project Complete assigned tasks Receive payment Project commitment During active project phases, contributors usually dedicate 10–20 hours per week. Actual workload depends on project needs and is not guaranteed outside of active periods. Compensation Contributors may earn up to $45 per hour, depending on experience and project pace. Rates vary by project scope, complexity, and required expertise. Other projects on the platform may offer different compensation based on their specific requirements.

Are you a passionate STEM expert fluent in Swedish with a desire to influence the future of AI technology? Large-scale language models are advancing from simple chatbots to remarkable tools for scientific exploration and technical innovation. With your input, we can provide high-quality training data that empowers world-class education, aligns with groundbreaking research, and optimizes the workflows of engineers, scientists, and analysts globally. Your expertise is crucial in fueling the next generation of AI. We are seeking dedicated STEM specialists who excel in mathematics, physics, chemistry, engineering, data science, computer science, and scientific computing. You will engage with advanced language models, tackling complex topics such as thermodynamics, mechanics, calculus, statistics, materials science, electronics, algorithm design, and quantitative modeling. Documenting failures is essential to enhance the model's reasoning capabilities. On a typical day, you will interact with the model on real-world STEM problems and theoretical inquiries, ensuring factual accuracy and logical integrity. You will capture reproducible error patterns and recommend enhancements to our prompt engineering and evaluation metrics. A bachelor’s or master’s degree in a STEM field is preferred. Experience in published research, engineering design, data analysis, or a robust coding portfolio will be seen as advantageous. Clear communication skills, demonstrating your thought process, are vital. Ready to leverage your STEM knowledge to contribute to the AI of tomorrow? Apply today and start educating the model that will educate the world. We offer a competitive pay range of $8 to $65 per hour, with the precise rate determined based on your experience, expertise, and location. As a contractor, you will need to provide a secure computer and high-speed internet; please note that company-sponsored benefits such as health insurance and PTO do not apply.

Are you passionate about the Norwegian language and eager to influence the future of artificial intelligence? Join us as a Norwegian Language Specialist and play a pivotal role in the evolution of large-scale language models, transforming them from simple chatbots into sophisticated tools for linguistic exploration. With your expertise in high-quality training data, together we can empower AI to democratize access to world-class education, align with cutting-edge research, and enhance communication for Norwegian speakers globally. We seek dedicated Norwegian language specialists who have a profound understanding of grammar, syntax, morphology, spelling, phonology, and pragmatics. You will engage in challenging discussions with advanced language models on various topics, including verb conjugation, noun inflection, sentence structure, distinctions between Bokmål and Nynorsk, regional dialects, and the subtleties of the Norwegian writing system. Your insights will be crucial in documenting errors to strengthen model reasoning. Your typical day will involve interacting with the model on language scenarios, verifying factual accuracy and logical consistency, capturing reproducible error traces, and providing recommendations for enhancing our prompt engineering and evaluation metrics. A Master's degree or PhD in Norwegian language, linguistics, or a closely related discipline is preferred. Ideal candidates will have peer-reviewed publications, teaching experience, or practical linguistic analysis projects. Clear and metacognitive communication—essentially, “showing your work”—is a must. Are you ready to leverage your Norwegian language skills to contribute to the knowledge base of future AI? Apply now to help teach the model that will enlighten the world.

Are you a passionate expert in the Swedish language looking to influence the evolution of AI? As large-scale language models transition from simple chatbots to robust linguistic tools, the demand for high-quality training data becomes crucial. Your expertise will play a pivotal role in democratizing access to top-tier education, facilitating cutting-edge research, and enhancing communication for Swedish speakers globally. This is your opportunity to contribute to the future of AI. We are seeking dedicated Swedish language specialists who are deeply knowledgeable in phonology, morphology, syntax, semantics, pragmatics, sociolinguistics, and language acquisition. Your role will involve rigorously testing advanced language models on critical topics such as verb conjugation, noun-adjective agreement, sentence structure, regional dialects, word order, idiomatic expressions, and cultural context. You will meticulously document any errors to strengthen model reasoning. On a typical day, you will engage in conversations with the AI model, verify factual accuracy and logical coherence, capture reproducible error traces, and provide insights for improving our prompt engineering and evaluation metrics. While a degree is not required, practical experience is invaluable. Peer-reviewed publications, teaching experience, or hands-on linguistic analysis projects are strong indicators of suitability. Exceptional metacognitive communication—demonstrating your thought process—is essential. Are you ready to transform your Swedish language expertise into foundational knowledge for tomorrow's AI? Apply today and help shape the model that will educate the world. We offer a competitive pay range of $8 to $65 per hour, with the final rate determined based on your experience, expertise, and location. Please note that as a contractor, you will need to provide a secure computer and high-speed internet. Company-sponsored benefits such as health insurance and PTO are not applicable.

Are you a passionate science expert fluent in Swedish, ready to influence the future of artificial intelligence? As large-scale language models transition from simple chatbots to sophisticated engines of scientific discovery, your contribution becomes crucial. By providing high-quality training data, you can help democratize access to world-class education, stay in sync with groundbreaking research, and enhance problem-solving capabilities for scientists and learners globally. This transformative work starts with you—your expertise is vital for shaping the next generation of AI.We are in search of dedicated science specialists with a deep understanding of physical science, earth science, environmental science, chemistry, physics, astronomy, and scientific literacy. You will engage advanced language models on subjects such as energy transformation, atomic structure, planetary motion, ecological systems, the water cycle, and scientific inquiry. Your role will include documenting failures in reasoning to fortify model accuracy.Your typical day will involve discussions with the AI on real-world scenarios and theoretical scientific inquiries, ensuring factual accuracy and logical consistency, capturing reproducible error traces, and proposing enhancements to our prompt engineering and evaluation metrics.A bachelor's, master's, or PhD in a relevant science discipline is preferred; experience in teaching, published research, laboratory or field studies, or science communication initiatives will be advantageous. Fluency in Swedish and the ability to communicate clearly and reflectively—essentially 'showing your work'—are crucial.Are you ready to leverage your scientific knowledge to build the knowledge base for tomorrow’s AI? Apply today and become a part of the team that will educate the world.

Are you a passionate Estonian language expert ready to influence the evolution of artificial intelligence? As large-scale language models transition from simple chatbots to sophisticated linguistic tools, your role becomes crucial. By providing high-quality training data, you can help create AI that enhances education, supports cutting-edge research, and facilitates communication for Estonian speakers worldwide.We are seeking dynamic Estonian language specialists who possess a deep understanding of Estonian grammar, syntax, morphology, spelling, phonology, and pragmatics. Your responsibilities will include challenging advanced language models on various topics such as verb conjugation, case inflection, vowel harmony, sentence structure, and the subtleties of the Estonian writing system. Documenting any shortcomings will be essential to refining model reasoning.In your role, you will engage in discussions with the model on diverse language scenarios, verify factual accuracy, identify logical inconsistencies, trace reproducible errors, and propose enhancements to our prompt engineering and evaluation metrics.Ideal candidates will hold a master’s degree or PhD in Estonian language, linguistics, or a closely related discipline. Experience with peer-reviewed publications, teaching, or hands-on linguistic analysis projects will be beneficial. Excellent communication skills, particularly in articulating your thought process, are vital.Are you ready to leverage your Estonian language expertise to build the AI knowledge base for the future? Apply now and start shaping the AI that will educate the world.

Please submit your CV in English and include your English proficiency level. Mindrift connects experienced professionals with project-based AI roles at top technology companies. Assignments focus on testing, evaluating, and improving AI systems. All work is freelance and project-based, not permanent employment. Role overview This freelance role is designed for optical engineers with strong Python skills who want to contribute to AI projects. Assignments vary, and each brings new technical challenges. Typical tasks include: Writing original computational physics problems based on real research workflows Developing programming challenges that require Python solutions, using libraries such as Numpy, SciPy, or Sympy Designing computationally intensive problems that cannot be solved manually in a reasonable timeframe Creating scenarios involving complex reasoning in areas like mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing problems on real-world research or practical physics applications Using Python and standard physics simulation libraries to verify solutions Documenting problem statements clearly and providing accurate, verified solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, or SciPy is a plus At least 2 years of professional experience in applied, research, or teaching roles Understanding of numerical simulation methods Ability to design problems that reflect real physics research workflows Creative approach to problem design across physics fields Familiarity with physics modeling and approximation techniques Strong written English skills at C1 level or above Project commitment Assignments usually require 10–20 hours per week during active project phases. Actual workload may vary depending on project needs and is not guaranteed. Compensation Contributors can earn up to $45 per hour, depending on project complexity, scope, and individual contribution. Compensation may vary by project. Application process Apply Complete the qualification process Join a project Finish assigned tasks Receive compensation Location: Remote, Sweden