Optical Engineer with Python - Freelance AI Trainer

Role overview Toloka AI is looking for a Freelance Mechanical Engineer with strong Python skills to support AI model training projects. This fully remote role is open to candidates based in Israel. What you will do Apply mechanical engineering expertise to guide and improve AI training processes Use Python to develop, test, or refine tools and workflows that support AI initiatives Collaborate on projects focused on artificial intelligence and machine learning Location and flexibility This is a freelance, remote position. Work from anywhere in Israel and set your own schedule while contributing to Toloka AI's projects.

Submit your CV in English and specify your English proficiency level. Mindrift offers project-based freelance roles for professionals interested in AI education. This remote position, open to candidates based in Israel, focuses on creating and validating computational chemistry problems for AI system evaluation. Engagements are project-based rather than permanent employment. What you will do Design computational chemistry problems that reflect real-world research workflows. Develop problem sets requiring Python programming for solutions, using libraries such as numpy, scipy, and chemistry-specific packages. Ensure problems are computation-intensive and not easily solvable by hand within a reasonable timeframe. Create tasks involving advanced reasoning in physical chemistry, quantum chemistry, and molecular modeling. Base scenarios on authentic research challenges or practical chemistry applications. Validate solutions in Python, applying established computational chemistry methods. Document problems clearly and provide accurate, verified solutions. Requirements Degree in Chemistry 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 acceptable. At least 2 years of relevant experience (applied, research, or teaching). Familiarity with numerical methods in chemistry and computational chemistry concepts. Strong written English skills at C1 level or above. How projects work The process includes application, passing qualifications, joining a project, completing assigned tasks, and receiving payment. Time commitment During active project phases, expect approximately 10–20 hours of work per week, depending on project needs. Actual workload may vary. Compensation Earn up to $35 per hour, based on experience and contribution speed. Payment depends on project scope, complexity, and expertise required. Other projects on the platform may offer different rates.

Role overview Toloka AI seeks a freelance AI trainer with expertise in civil engineering and strong Python programming skills. This position is fully remote and available to candidates based in Israel. What you will do Use civil engineering knowledge and Python to contribute to the training and improvement of AI models. Work closely with Toloka AI's team to assist in developing advanced AI systems. Location This is a remote role for candidates residing in Israel.

Submit your CV in English and include your English proficiency level. About the Role toloka-ai, in partnership with Mindrift, connects skilled specialists to project-based AI work for leading tech companies. These are not permanent positions, but rather flexible, remote opportunities focused on testing, evaluating, and improving AI systems. Project Scope Each project offers unique tasks. As a contributor, responsibilities may include: Designing computational engineering problems modeled on real-world processes Creating coding challenges that use Python for engineering calculations and simulations Ensuring problems require significant computation, numerical methods, or iterative solutions Developing challenges in system design, optimization, and analysis Formulating problems based on current research or practical engineering applications Verifying solutions in Python, using common engineering libraries Writing clear problem statements and providing accurate, verified answers What We Look For Degree in Electrical Engineering or a closely related field Proficiency in Python for numerical work; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar also valued At least 2 years of professional experience in applied, research, or teaching roles Understanding of practical engineering constraints and approximations Strong written English skills (C1+ level) Professional certifications (such as CMME, SAS Certifications, CAP) and international or applied project experience are a plus How to Apply The process is straightforward: Apply Pass qualifications Join a project Complete assigned tasks Receive compensation Workload and Commitment Active project phases typically require about 10-20 hours per week. Actual hours depend on project needs and are not guaranteed outside active periods. Compensation Contributors may earn up to $37 per hour, depending on expertise and contribution speed. Pay varies by project scope, complexity, and required skills.

Please submit your CV in English and indicate your English proficiency level. About the Role toloka-ai, through the Mindrift platform, offers project-based freelance work focused on AI system testing, evaluation, and improvement. This is not a permanent employment arrangement. Projects are remote and based in Israel. What You Will Do Create original computational statistics challenges that mirror real mathematical research. Design problems that require Python programming to solve, using libraries such as Numpy, SciPy, or Sympy. Develop computationally intensive problems that cannot be solved manually within a reasonable timeframe. Write problems involving advanced reasoning in areas like number theory, combinatorics, graph theory, and numerical analysis. Base problems on authentic research questions or practical mathematical scenarios. Validate solutions in Python with standard mathematical libraries. Document problem statements clearly and provide verified answers. Who We’re Looking For Degree in Statistics or a related field. Strong Python skills for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other relevant libraries is also welcome. At least 2 years of professional experience in applied, research, or teaching roles. Excellent written English (C1 level or above). Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are a plus. How Projects Work Apply Complete qualifications Join a project Fulfill assigned tasks Receive compensation Time Commitment During active project phases, tasks typically require 10 to 20 hours per week. Actual workload may vary depending on project needs and is not guaranteed. Compensation Contributors can earn up to $39 per hour, depending on experience and pace. Rates may differ between projects based on their complexity and requirements. Other projects on the platform may offer different earning potential.

Please submit your CV in English and include your English proficiency level. About Mindrift Mindrift connects skilled professionals with project-based AI work for top technology companies. Projects focus on testing, evaluating, and improving AI systems. All roles are project-based and do not offer permanent employment. Role Overview: Freelance AI Trainer – Physics Expert with Python This remote, project-based role supports AI development by designing and validating advanced computational physics problems. Engagements are open to candidates based in Israel. What You Will Do Create original computational physics problems that mirror real research methodologies Develop challenges requiring Python programming to solve, using libraries like Numpy, SciPy, or Sympy Design tasks that are computationally intensive, taking days or weeks to solve manually Formulate problems involving complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Base problems on real research questions or practical applications in physics Verify solutions with Python and established physics simulation tools Document problem statements clearly and provide confirmed correct answers Who Should Apply Holds a degree in Physics (theoretical, experimental, or computational) or a related field Experienced with Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar is also valued At least 2 years of relevant experience in applied, research, or teaching roles Background in numerical simulation techniques Can design problems that reflect real-world research workflows Brings creative problem-solving skills across multiple physics domains Understands physics modeling and approximation methods Has strong written English skills (C1 level or higher) How Projects Work The typical process: Apply Complete qualifications Join a project Fulfill assigned tasks Receive payment Time Commitment During active projects, tasks usually require about 10–20 hours per week, depending on project needs. Actual workload may vary. Compensation Contributors can earn up to $35 per hour, depending on contribution and pace. Rates vary by project based on scope, complexity, and required expertise.

Please submit your CV in English and indicate your English proficiency level. Mindrift connects skilled specialists with project-based AI initiatives for leading tech companies. The focus is on testing, evaluating, and improving AI systems. This is a project-based freelance role, not a permanent position. What you will do Create original computational mathematics problems that reflect real mathematical research methods. Develop problems that require Python programming to solve, using libraries such as Numpy, SciPy, and Sympy. Ensure problems are computationally intensive and cannot be solved manually within days or weeks. Design challenges involving advanced reasoning in areas like number theory, combinatorics, graph theory, and numerical analysis. Base problems on genuine research questions or practical mathematical applications. Validate solutions in Python with established mathematical libraries. Document each problem clearly, providing both the statement and a verified solution. Requirements Degree in Mathematics (Pure or Applied) or a closely related field. Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or Stata, or knowledge of another programming language is also acceptable. At least 2 years of professional experience, which may include research, teaching, or applied work. Familiarity with numerical methods and symbolic computation. Ability to design problems that mirror authentic mathematical research workflows. Understanding of computational complexity theory. Strong written English skills at C1 level or higher. Application process The process includes: Apply → Complete qualifications → Join a project → Execute tasks → Receive payment. Project commitment During active phases, tasks are expected to require approximately 10–20 hours per week. This estimate depends on project needs and is not a guaranteed workload. Compensation Contributors may earn up to $35 per hour, depending on expertise and pace. Actual compensation varies by project scope, complexity, and required skills. Other projects on the platform may offer different earning potential based on their requirements.

Mindrift seeks a Freelance Python Data Scraping Engineer to join the Tendem project. This is a remote, part-time contract role for candidates based in Israel. The position involves integrating advanced data scraping workflows into a hybrid system that combines AI with human input. Collaboration with Tendem Agents is central, as they manage repetitive tasks while the engineer ensures technical precision and data quality. Key responsibilities Extract structured data from complex websites, managing the full process from collection to delivery. Utilize internal tools such as Apify and OpenRouter, alongside custom workflows, to streamline data gathering, validation, and task management. Adapt scraping techniques for dynamic and interactive web sources, including sites with JavaScript-rendered content or frequent structural changes. Enforce data quality through validation checks, ensuring consistency across sources and compliance with formatting standards. Scale scraping operations for large datasets using batching or parallelization, monitor for failures, and maintain resilience to minor site updates. Requirements Minimum 3 years of experience in data engineering, web scraping, and automation. Compensation Contributors may earn up to $32 per hour, depending on expertise and pace. Actual rates vary by project, reflecting scope, complexity, and required skills. Application process Interested candidates should submit an application to qualify for freelance projects that align with their technical experience. The role offers flexible scheduling and the chance to contribute to projects involving coding, automation, and AI output refinement, supporting both AI development and practical uses.

Please submit your CV in English and specify your English proficiency level. toloka-ai, in partnership with Mindrift, offers contract-based, project work for professionals interested in evaluating, testing, and improving AI systems. This is a freelance role, not a permanent staff position. Role overview The Freelance AI Evaluation Engineer will contribute to building a dataset focused on assessing AI coding agents. The main goal is to evaluate how these agents perform on real-world developer tasks. Main responsibilities Set up virtual companies using a strategic plan, including codebases, infrastructure, and supporting context such as conversations, documentation, and tickets to create realistic development scenarios. Design and calibrate tasks representing different stages within the virtual company. This involves writing prompts, defining evaluation metrics, and ensuring tasks are solvable and fairly assessed. Create tasks in isolated environments that mimic a developer’s workstation. Use a Linux setup with development tools (terminal, CLI), MCP servers (repository, task tracker, messenger, documentation), and a real web application codebase. Develop tests that accept all valid solutions and reject incorrect ones. Balance strictness and flexibility to avoid penalizing good approaches or allowing flawed solutions. Work with an AI agent on test cases to ensure the tests catch real issues and do not miss poor solutions or unfairly block correct ones. Review code generated by AI agents, analyze reasons for success or failure, and create edge cases and adversarial scenarios to deepen evaluation. Refine your work based on feedback from expert QA reviewers to meet established quality standards. Important notes This is not a data labeling position. This is not a prompt engineering role. Writing code from scratch is not required. The AI agent handles most coding; the focus is on guiding and evaluating its output. Much of the work involves collaborating closely with AI systems. Crafting tasks that challenge advanced models means working alongside those same models throughout the process.

Please submit your CV in English and include your English proficiency level. Role Overview Toloka AI, through Mindrift, connects skilled professionals with project-based AI initiatives for leading technology companies. This freelance role focuses on evaluating and improving AI systems by designing and solving advanced computational physics problems. This is not a permanent position, but a project-based contract. What You Will Do Develop original computational physics problems that reflect real research workflows. Create problems that require Python programming to solve, using libraries such as Numpy, SciPy, and Sympy. Ensure problems are computationally demanding and cannot be solved manually in a reasonable timeframe. Design challenges involving complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problems on genuine research questions or practical physics scenarios. Validate solutions with Python and established physics simulation tools. Document problem statements clearly and provide accurate, verified solutions. Who Should Apply Holds a degree in Physics (theoretical, experimental, or computational) or a related field. Experienced with Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar is also acceptable. At least 2 years of professional experience in research, application, or teaching. Skilled in numerical simulation methods. Able to design problems that mirror authentic physics research workflows. Creative in problem-solving across multiple physics disciplines. Understands physics modeling and approximation techniques. Strong written English skills (C1 level or above). How to Apply Submit your application. Complete qualification steps. Join a project when selected. Work on assigned tasks. Receive compensation upon completion. Time Commitment Project tasks typically require about 10–20 hours per week during active phases. Actual workload may vary depending on project needs. Compensation Earn up to $35 per hour, depending on your contribution and efficiency. Compensation varies by project based on complexity and required expertise. Other projects on the platform may offer different rates according to their specifications. Location: Remote , Israel

Please submit your CV in English and indicate your English proficiency level. Role overview toloka-ai, working with Mindrift, brings together professionals for project-based AI assignments with major technology companies. This freelance optical engineer position centers on evaluating and improving AI systems. The role is not permanent and is structured around specific projects. What you will do Create original optics problems that reflect real-world research workflows in physics. Design computationally demanding problems that cannot be solved manually in a short timeframe. Develop scenarios requiring advanced reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problem sets on authentic research challenges or practical applications in optics and physics. Write clear problem statements and provide 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) Experience using numerical simulation methods Ability to design problems modeled on genuine research workflows Creative thinking across multiple physics domains Understanding of physics modeling and approximation techniques Strong written English skills (C1 level or higher) How to apply Apply Pass qualifications Join a project Complete tasks Get paid Project commitment Active project periods typically involve 10–20 hours of work per week. Workload may fluctuate and is not guaranteed outside these phases. Compensation Earnings can reach up to $35 per hour, depending on experience and task completion rate. Compensation may vary by project based on complexity, scope, and required expertise. Other projects on the platform may offer different pay rates as needed.

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI work for leading technology companies. The platform focuses on testing, evaluating, and improving AI systems. All roles are flexible and non-permanent. Role overview This freelance position centers on applying material science expertise and Python skills to help train and evaluate AI systems. Projects change over time, but the core work involves creating and validating engineering problems that reflect real-world scenarios. What you will do Design original materials that reflect authentic engineering challenges Create programming problems using Python for calculations and simulations Ensure tasks require computational work, numerical methods, or iterative solutions Develop projects focused on system design, optimization, and analysis Base problems on real research issues or practical engineering situations Verify solutions using Python and standard engineering libraries Document problem statements clearly and provide validated solutions Requirements Degree in Material Science or a closely related field Strong Python skills for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is a plus At least 2 years of relevant experience, including applied research or teaching Understanding of practical engineering constraints and approximations Excellent written English at C1 level or higher How to get started Apply Pass qualification(s) Join a project Complete tasks Get compensated Project commitment During active project phases, tasks usually require 10–20 hours per week. Actual workload may vary depending on project needs. Compensation Contributors can earn up to $35 per hour, depending on the nature and complexity of the project. Pay varies by project scope.

Please submit your CV in English and indicate your English proficiency level. About Mindrift Mindrift connects subject-matter experts with project-based AI assignments for leading technology companies. The focus is on testing, evaluating, and improving AI systems. All roles are project-based and not permanent positions. Role Overview The Freelance Quantum Research Scientist & Python AI Trainer works on projects that challenge contributors to: Create original computational physics problems that mirror real research processes in physics Design problems requiring Python programming skills, using libraries such as Numpy, SciPy, and Sympy Ensure that problems need computational resources beyond what is solvable by hand in a reasonable timeframe Develop problems involving complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Base problems on genuine research challenges or practical applications in physics Validate solutions with Python and standard physics simulation libraries Document problem statements clearly and provide verified correct answers Who This Suits This contract role fits quantum researchers with Python experience who are interested in part-time, project-based work. Preferred qualifications include: Degree in Physics (theoretical, experimental, or computational) or a related field Proficiency in Python for numerical validation; knowledge of MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other relevant programming languages is also valued At least 2 years of professional experience in applied research or teaching Experience with numerical simulation methods Ability to design problems that reflect authentic physics research workflows Skill in innovative problem design across various physics domains Understanding of physics modeling and approximation techniques Excellent written English skills at C1 level or higher Project Process Application Qualification process Project onboarding Task completion Compensation Estimated Commitment Active project phases typically require about 10–20 hours per week. Actual workload depends on project requirements and may vary. This estimate applies only during periods when a project is active. Compensation Contributors can earn up to $35 per hour, depending on experience and the pace of contributions. Actual rates may vary by project scope, complexity, and expertise needed. Compensation levels differ across projects on the platform.

Role overview toloka-ai seeks a Computer Science Specialist with advanced Python skills to contribute to ongoing AI initiatives. This position is remote and open to candidates based in Israel. The main focus is on building and refining AI-driven projects. What you will do Develop and maintain solutions for AI projects using Python Collaborate with a team of specialists to drive advancements in AI technologies Work through technical challenges and share expertise with colleagues Location This role is remote for candidates located in Israel.

Are you passionate about the Hebrew language and eager to influence the evolution of artificial intelligence? As large-scale language models transition from basic chatbots to advanced tools for linguistic exploration, your expertise in Hebrew can play a vital role in this transformation. With high-quality training data, the future of AI can enhance educational access, align with cutting-edge research, and improve communication for Hebrew speakers globally. This journey begins with your knowledge and skills—we invite you to join us in shaping the next generation of AI.We are seeking Hebrew language specialists who excel in Hebrew grammar, syntax, morphology, spelling, phonology, and pragmatics. Your role will involve challenging advanced language models on intricate aspects such as verb conjugation, sentence structure, gender agreement, formal and informal speech, regional dialects, and the subtleties of Hebrew writing systems. You will meticulously document failure modes to strengthen model reasoning.On a typical day, you will engage with the model on various language scenarios, verify factual accuracy and logical consistency, capture reproducible error traces, and recommend enhancements to our prompt engineering and evaluation metrics.A Master's degree or PhD in Hebrew language, linguistics, or a closely related discipline is preferred. Experience with peer-reviewed publications, teaching, or hands-on linguistic analysis projects will be considered advantageous. Clear and reflective communication—demonstrating your thought process—is crucial.Are you ready to leverage your Hebrew language expertise to contribute to the AI knowledge base of tomorrow? Apply now and become part of the model that will educate the world.

Role overview toloka-ai is hiring a Strategy Consultant to focus on AI training and evaluation. This remote role is available to candidates based in Israel. The position centers on helping organizations shape their approach to artificial intelligence through both strategic planning and hands-on support. What you will do Collaborate with top firms to guide and refine their AI strategies Contribute to the development and assessment of various AI initiatives Use strategic thinking to support clients in reaching their AI objectives Requirements Keen interest in artificial intelligence Background in strategic planning or consulting Ability to work well with diverse stakeholders Location This is a remote position open to candidates living in Israel.

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to join projects that blend journalism with artificial intelligence. This remote position is open to candidates located in Israel. The work centers on creating and refining content, always with attention to accuracy and relevance for real-world news and stories. Key responsibilities Take part in projects that use AI to generate and improve written content Support the training of AI systems to better understand and apply journalistic standards Adapt to a range of topics and formats, adjusting your approach based on each project's needs Location This role is fully remote but requires residency in Israel.

Toloka AI seeks a Freelance English Writer - AI Trainer for a remote contract role based in Israel. This position centers on developing and refining written materials that support the training of AI language systems. Responsibilities Create and edit English-language content designed for AI training tasks Select and organize examples and prompts to help AI models better interpret natural human communication Review and improve AI-generated text to ensure it reads naturally and accurately Location This is a remote role. Candidates may work from home anywhere within Israel.

Role overview toloka-ai is looking for a Senior Consultant to join a freelance AI project. This remote position is open to candidates based in Israel. The role centers on working closely with major industry firms, using significant experience in both AI and consulting to guide projects and provide actionable insights. What you will do Collaborate directly with leading companies on projects focused on artificial intelligence Apply expertise to help design practical solutions and offer clear recommendations Draw on previous consulting experience with well-known organizations to inform project work Requirements Strong background in consulting and artificial intelligence Experience working with recognized companies Comfort with freelance, project-based assignments and remote collaboration