Freelance AI Trainer - Data Annotation Specialist

Please submit your CV in English and indicate your level of English proficiency. Toloka AI, working with Mindrift, offers freelance, project-based assignments focused on advancing AI systems for technology clients. This contract role is temporary and centers on evaluating and improving AI through real-world engineering challenges. The position is remote and based in San Antonio, Texas, United States. Role overview This freelance assignment involves designing and validating material science problems that reflect actual engineering workflows. Assignments require both subject matter expertise and strong Python programming skills to create, test, and document computationally intensive tasks. What you will do Develop material engineering challenges based on authentic research questions or practical scenarios. Create problems that require Python programming for calculations, simulations, and numerical analysis. Ensure tasks involve computational complexity, using numerical methods or iterative solutions where appropriate. Design assignments related to system design, optimization, and analysis. Validate all solutions using Python and standard engineering libraries. Document each problem clearly and provide accurate, verified solutions. Requirements Degree in Material Science or a closely related discipline. Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is a plus. Minimum of 2 years of professional experience in applied, research, or teaching roles. Solid understanding of engineering constraints and practical approximations. Excellent written English (C1 level or above). Project workflow Application Qualification Assessment Project Engagement Task Completion Compensation Time commitment During active project phases, expect to dedicate approximately 10–20 hours per week. Actual workload may fluctuate based on project requirements. Compensation Contributors may earn up to $76 per hour, depending on project complexity, contribution level, and pace. Compensation varies by assignment and expertise required. Other projects on the platform may offer different rates.

Mindrift connects chemistry experts with project-based AI work for leading tech companies. Projects focus on testing, evaluating, and improving AI systems. All roles are freelance and do not represent permanent employment. What you will do Create original computational chemistry problems that reflect real-world research workflows. Develop problems requiring Python programming solutions, using libraries such as numpy, scipy, and chemistry-specific packages. Ensure problems are computationally complex and not solvable manually within days or weeks. Design tasks that involve advanced reasoning in physical chemistry, quantum chemistry, and molecular modeling. Base problems on actual research challenges or practical chemistry applications. Validate solutions in Python using established computational chemistry methods. Write clear problem statements and provide verified solutions. Requirements Degree in Chemistry or a related discipline. Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is also considered. At least 2 years of relevant experience in applied work, research, or teaching. Experience with numerical methods in chemistry. Understanding of computational chemistry concepts and techniques. Strong written English skills at C1 level or higher. How it works Submit an application and CV in English, including your English proficiency level. The process follows these steps: Apply Pass qualifications Join a project Complete assigned tasks Receive payment Project details During active project phases, tasks typically require 10-20 hours per week. Actual workload depends on project needs and may vary. Compensation Rates can reach up to $76 per hour, depending on expertise and contribution. Compensation varies by project scope, complexity, and the specialized knowledge required. Different projects may offer different rates based on their requirements.

toloka-ai seeks a freelance AI Trainer who combines expertise in civil engineering with strong Python programming skills. This fully remote contract centers on supporting learners interested in artificial intelligence, with a focus on candidates based in San Antonio, Texas. Role overview This position involves sharing technical knowledge and practical experience to help others build their skills in AI. The work is project-based and offers flexibility in schedule and approach. What you will do Mentor and guide individuals exploring AI, using a background in civil engineering and Python to clarify concepts. Assist others in developing technical skills and understanding foundational topics relevant to artificial intelligence. Location This role is remote, with a preference for those located in San Antonio, Texas, United States.

Please submit your CV in English and indicate your English proficiency level. Mindrift connects skilled professionals with project-based AI assignments for leading technology companies. These projects focus on assessing, evaluating, and improving AI systems. Participation is on a project basis and does not represent permanent employment. What you will do Create original computational mathematics problems that mirror real mathematical research workflows Design problems requiring Python programming to solve, using libraries such as Numpy, SciPy, or Sympy Ensure problems are computationally intensive and cannot be solved manually in a reasonable timeframe Develop problems involving complex reasoning in areas like number theory, combinatorics, graph theory, and numerical analysis Base scenarios on real-world research challenges or practical mathematical applications Validate solutions using Python and standard mathematical libraries Document problem statements clearly and provide accurate, verified solutions Requirements Degree in Mathematics (Pure or Applied) or a related field Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other relevant programming languages is also considered At least 2 years of professional experience in applied mathematics, research, or teaching Background in numerical methods and symbolic computation Ability to design problems reflecting authentic mathematical research processes Understanding of computational complexity theory Excellent written English skills (C1+ level) How to apply The application process includes: Apply → Pass qualifications → Join a project → Complete tasks → Get compensated. Time commitment Tasks typically require around 10–20 hours per week during active project phases. Actual workload may vary depending on project needs. Compensation Contributors may earn up to $76 per hour, depending on expertise and pace. Earnings vary by project scope, complexity, and required skills. Other projects on the platform may offer different compensation based on their requirements.

Toloka AI is looking for a Freelance AI Trainer with a strong background in biology and Python. This remote contract role is open to candidates based in San Antonio, Texas, or elsewhere in the United States. Role overview This position centers on training and improving AI models for applications in biology. The work involves applying both subject matter knowledge and Python skills to help shape technology that supports research and education in the life sciences. What you will do Use expertise in biology and Python to guide the development of AI models Contribute to projects that aim to advance tools for biological research and learning Requirements Strong knowledge of biology Proficiency with Python Interest in AI model training and improvement

We invite you to submit your resume in English, clearly indicating your level of English proficiency.Mindrift connects talented specialists with project-based AI opportunities for top-tier tech firms, focusing on testing, evaluating, and enhancing AI systems. Note: This role is project-based and does not offer permanent employment.Role Overview:Each project presents unique challenges, including but not limited to:Designing original computational physics problems that reflect genuine research workflows;Formulating problems requiring Python programming solutions (utilizing libraries such as Numpy, SciPy, and Sympy);Creating problems that are computationally demanding, ensuring they cannot be solved manually within practical timeframes (days or weeks);Developing intricate problems necessitating advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Grounding problems in actual research dilemmas or applicable real-world physics scenarios;Verifying solutions through Python using standard physics simulation libraries;Writing clear and comprehensive problem statements along with verified correct answers.Candidate Profile:This opportunity is ideal for individuals with a physics background and Python expertise, seeking part-time, non-permanent projects. The ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or related disciplines;Proficiency in Python for numerical validation (knowledge of MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar programming languages is also acceptable);A minimum of 2 years of relevant experience, including applied, research, or teaching roles;Familiarity with numerical simulation techniques;Capability to design problems that emulate authentic physics research workflows;Creative problem-solving skills across various physics domains;Solid command of written English (C1+ level).Project Workflow:To participate, follow these steps: Apply → Pass qualifications → Join a project → Complete tasks → Receive compensation.Expected Commitment:For this project, contributors can expect to dedicate approximately 10–20 hours per week during active phases, contingent upon project requirements. Note that this is an estimate and not a guaranteed workload.Compensation:Participants in this project can earn up to $76 per hour, depending on their proficiency and contribution pace. Compensation may vary by project based on its scope, complexity, and the expertise required. Please be aware that other projects on the platform may offer different compensation rates based on their specific needs.

Role overview National Vision, Inc. seeks a Sales Associate - Optical for its San Antonio location. This role centers on helping customers select eyewear that matches both their needs and personal style. Sales Associates help create a welcoming atmosphere and play a part in building customer loyalty. What you will do Welcome customers as they arrive in the store Assist shoppers in exploring eyewear options and respond to their questions Share information about lenses, frames, and accessories Support a smooth, positive shopping experience for every visitor Requirements Interest in providing customer service Clear communication skills and the ability to listen to customer preferences Openness to learning about optical products Comfort working with others in a busy retail environment

Role overview National Vision, Inc. is hiring an Assistant Manager for the Optical department in San Antonio. This position plays a key role in supporting daily store operations and ensuring customers have a positive experience. The Assistant Manager partners with the team to help achieve sales goals and maintain a welcoming environment. What you will do Oversee daily activities in the optical department Support and supervise staff to uphold service standards Contribute to sales efforts and help the store reach its goals Encourage a positive atmosphere for customers and team members Requirements Experience or strong interest in eyewear and optical products Dedication to excellent customer service Energetic attitude and commitment to team success Leadership skills with a collaborative approach

Build something to be proud of.At Captivation, we pride ourselves on delivering precisely what our customers need, exactly when they need it. Our engineering team is dedicated to innovation and excellence in every solution we provide. We are currently seeking talented software developers who are passionate about making a difference while supporting our mission to protect our country. Job OverviewCaptivation Software is on the lookout for a driven and experienced DevOps Engineer to join our dynamic development team. The successful candidate will possess a robust understanding of Linux systems administration and familiarity with Big Data solutions, configuration management, automation, scripting, and AWS. As a DevOps Engineer, you will be instrumental in implementing infrastructure, automating deployment processes, and ensuring the reliability and scalability of our services. This position is primarily based on-site at our client location in San Antonio, TX, five days a week.If you are passionate about DevOps and eager to work with an innovative team, we invite you to apply for this exciting opportunity.

Join our dynamic team at National Vision, Inc. as a Part-Time Optical Sales Associate! We are on the lookout for enthusiastic individuals who are passionate about providing exceptional customer service and helping customers find the perfect eyewear solutions. As a key member of our store, you will engage with customers, assist them in selecting products, and contribute to a fun and welcoming shopping experience.

Role overview National Vision, Inc. is looking for a Part-Time Optical Sales Associate based in San Antonio. This position focuses on helping customers throughout their eyewear selection, aiming to provide a friendly and helpful retail experience. What you will do Welcome customers and respond to questions about eyewear products and available services Assist shoppers in selecting frames and lenses that suit their preferences and needs Offer attentive service to help ensure each visit is positive Support and training New hires receive training and steady support from the team. The part-time schedule can suit those new to retail or anyone looking for flexible work hours.

Join our dynamic team at National Vision, Inc. as a Part-Time Sales Associate in the Optical sector. In this role, you will be the face of our retail operations, assisting customers with their eyewear needs while providing exceptional service. Your passion for helping others and your ability to engage with customers will be key to your success in this position.As a Sales Associate, you'll have the opportunity to work in a fast-paced environment, where your contributions directly impact the satisfaction of our clients and the overall success of our store. We are looking for individuals who are enthusiastic, team-oriented, and eager to learn about the optical industry.

Please submit your CV in English and include your English proficiency level. Toloka AI, working through the Mindrift platform, brings together skilled professionals for project-based roles supporting technology companies. Mindrift’s projects focus on testing, evaluating, and improving AI systems, giving contributors a chance to work on practical AI challenges. Role overview This Senior Python Developer - Code Migration Specialist position centers on migrating and testing large, multi-language codebases. The role calls for strong Python development skills, deep experience with Linux and Docker, and the ability to interpret code in C, Rust, and Go. Familiarity with LLM tools such as Roo Code or Claude Code is important for streamlining migration and development tasks. What you will do Create functional black box tests for complex codebases in multiple languages. Design and maintain Docker environments to ensure reproducible builds and tests across platforms. Track code coverage and set up automated scoring to meet industry standards. Apply LLMs (like Roo Code and Claude) to automate repetitive work, speed up development, and improve code quality. Requirements 5+ years as a Software Engineer, with a primary focus on Python. Advanced knowledge of pytest, including fixtures, session-scoped tests, and timeouts, plus experience designing black-box functional tests for CLI tools. Expertise in Docker, including reproducible Dockerfiles, user contexts, and secure workspace setup. Strong Linux and Bash scripting skills, with the ability to debug inside containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and understand code in C, C++, Rust, and Go, with LLM support. Hands-on experience using LLMs (Claude Code, Roo Code, Cursor) to improve development cycles and create test cases. English proficiency at B2 level or above. Preferred Background in agent evaluation platforms or experience with MCP CLI. Tools and technologies Key tools include Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, and Dagger. The role involves reading code in C, C++, Rust, and Go, and working with LLMs such as Claude Code, Roo Code, and Cursor. Additional tools: GitHub Codespaces, coverage.py, gcov, and kcov. Compensation and benefits Freelance, project-based work through Mindrift (powered by Toloka AI). Fully remote with a flexible schedule; set your own contributions (20-30 hours per week). Compensation varies by project. For this project, AI trainers can earn up to $80 per hour. Location: Remote , San Antonio, Texas, United States

Please submit your CV in English and indicate your English proficiency level. Mindrift connects skilled professionals with project-based AI work for top technology companies. The focus is on testing, evaluating, and improving AI systems. This is a contract position tied to specific projects, not a permanent full-time role. Role overview This Senior Python Systems Developer position centers on functional testing for large and complex codebases. The work involves designing and running black-box tests, setting up reproducible environments with Docker, and using large language models (LLMs) to enhance and automate development tasks. The ideal candidate is comfortable with Linux, Docker, and can interpret code in languages like C, Rust, or Go. Familiarity with iterative development tools such as Roo Code or Claude Code is valued, as is experience with migration tasks. What you will do Design and implement functional black-box tests for large codebases in various languages. Set up and maintain Docker environments to support reproducible builds and test runs across platforms. Track code coverage and configure automated scoring to match industry standards. Leverage LLMs (including Roo Code and Claude) to automate repetitive steps and improve code quality. Requirements Minimum 5 years as a Software Engineer, primarily working with Python. Strong hands-on experience with pytest (including fixtures, session-scoped tests, and timeouts) and black-box testing for CLI tools. Expert-level knowledge of Docker, including writing reproducible Dockerfiles, managing user contexts, and workspace security. Advanced Linux and Bash scripting skills, with the ability to debug inside containers. Familiarity with modern Python tooling such as uv, pyproject.toml, and packaging. Ability to read and interpret code in C, C++, Rust, or Go, with LLM assistance. Experience using LLMs (Claude Code, Roo Code, Cursor) for iterative development and generating tests. English proficiency at B2 level or higher. Preferred Background with agent evaluation platforms and MCP CLI. Tools and technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (for code reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits and compensation Freelance, project-based work through the Mindrift platform (powered by Toloka AI). Fully remote and flexible: set your own schedule and contribution level (20-30 hours per week). Project-based pay. AI trainers on this project can earn up to $80 per hour. Location: Remote , San Antonio, Texas, United States

Please submit your resume in English and specify your proficiency level. Toloka brings together detail-oriented freelancers worldwide to contribute to projects that help train and improve artificial intelligence systems. The platform connects people with tasks in Generative AI for leading technology companies, relying on human input to advance AI’s accuracy and reliability. Role overview This freelance, remote position focuses on supporting AI development through human feedback. As an English Annotator - AI Trainer, tasks may include evaluating AI-generated content, checking facts, or comparing different responses. Project assignments depend on availability and Toloka’s current needs. Main responsibilities Review data sets, which may include text, images, or videos Label or categorize content following specific project instructions Identify and report content that is factually incorrect, sensitive, inappropriate, or unclear Project availability and compensation Assignments are project-based and depend on eligibility and current opportunities. Each project offers its own pay structure. For this project, AI Trainers can earn up to $23 per hour. Location This role is remote and open to candidates in San Antonio, Texas, United States.

Toloka AI is hiring a Freelance English Writer & AI Trainer for a remote contract position based in San Antonio, Texas. This role centers on developing and refining training materials that support AI technologies. Collaboration with a distributed team is key to ensuring all content is clear, effective, and up to a high standard. Responsibilities Create and edit English-language training resources used by AI systems Review content with team members to improve quality and clarity Contribute to materials that help make AI tools more accurate and useful Requirements Strong written English skills Keen attention to detail when creating and editing content Ability to work both independently and collaboratively with a remote team

Toloka AI is looking for a Freelance Junior Journalist - AI Trainer to join projects remotely from San Antonio, Texas. This role combines journalism with practical work in artificial intelligence. It offers the chance to explore emerging topics in AI while sharpening reporting and writing skills. What you will do Support projects that advance the development and understanding of AI technologies Use journalistic techniques to help improve AI systems Stay informed about current trends and tools in artificial intelligence Location This is a remote position for candidates based in San Antonio, Texas, United States.

Mindrift, part of toloka-ai, seeks a Computer Science Specialist with strong Python experience. This remote role is based in San Antonio, Texas, and centers on supporting artificial intelligence projects. Key responsibilities Collaborate with a diverse team of AI professionals Address technical challenges related to artificial intelligence Apply Python to build and refine AI systems and tools Team environment Mindrift brings together specialists who work remotely to enhance AI capabilities. The team values technical skill, creative thinking, and close collaboration to solve complex problems.

Mindrift brings together specialists for project-based roles in the AI sector, working with major technology companies to test, evaluate, and improve AI systems. This position is not a permanent job but offers freelance, project-driven work. Role overview The Freelance AI Trainer & Supply Chain Consultant role centers on applying procurement and supply chain expertise to help shape, test, and refine AI models. Work involves developing realistic disruption scenarios, outlining mitigation strategies, and reviewing AI-generated recommendations for accuracy and business fit. Projects typically relate to manufacturing and procurement, with a strong focus on ERP systems. What you will do Develop supply chain disruption scenarios based on real manufacturing and procurement challenges, such as supplier delays, quantity changes, logistics issues, and quality failures. Define expected results and effective mitigation strategies for each scenario. Review and evaluate AI-generated recommendations using practical business logic. Check outputs for accuracy, completeness, and relevance within ERP platforms, especially Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP). Contribute to structured data creation and validation following provided guidelines. Requirements Minimum of 4 years in procurement, supply chain management, or purchasing, ideally within a manufacturing context. Strong grasp of procurement workflows, including purchase orders, vendor management, inventory, and production planning. Experience with ERP systems such as SAP, Oracle, or Microsoft Dynamics 365. Background in designing and analyzing supply chain disruption scenarios and mitigation strategies. Understanding of disruption types: delays, shortages, quality issues, and logistics challenges. Familiarity with Incoterms and logistics or transportation management. Knowledge of Bill of Materials (BOM) structures and production planning processes. Experience tracking supplier performance metrics like OTIF (On Time In Full), lead times, and quality scores. Strong analytical skills to assess AI outputs with real-world business logic. Experience in data validation, structured data entry, or annotation work. Excellent written English communication skills. Project commitment Plan for approximately 10-20 hours per week during active project periods. Actual workload may shift based on project needs. Compensation Rates reach up to $60 per hour, depending on experience and specific project requirements. Application process Apply Complete qualification steps Join a project Carry out assigned tasks Receive payment