Material Scientist with Python Expertise - Freelance AI Trainer

Please submit your CV in English and indicate your level of English proficiency. toloka-ai, working with Mindrift, offers project-based freelance roles for professionals supporting AI development. This contract position centers on improving, evaluating, and testing AI systems. Note that this is not a permanent employment role, but a project-based contract. Role overview The Freelance Research Physicist - AI Systems Trainer helps shape AI capabilities by designing and evaluating complex physics challenges. Tasks span several areas of advanced physics and require both creativity and technical depth. Design original optical problems reflecting real-world research methods Develop computationally intensive challenges beyond manual calculation Create problems involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Base challenges on actual research questions or practical applications in optics and physics Document problem statements clearly and provide verified solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field Minimum 2 years of experience in applied physics, research, or academic roles Proficiency with numerical simulation techniques Ability to design problems that mirror authentic research workflows Creative approach to problem design across multiple physics disciplines Familiarity with modeling and approximation methods in physics Excellent written English (C1 level or above) Project process The typical workflow includes: Apply, pass qualifications, join a project, complete assigned tasks, and receive compensation. Time commitment Plan for 10–20 hours per week during active project phases. Actual workload may shift based on project needs. Compensation Earnings can reach up to $35 per hour, depending on expertise and pace. Rates may vary by project, reflecting scope, complexity, and required skills. Some projects may offer different compensation.

Please submit your CV in English and include your English proficiency level. Role overview This freelance, project-based contract with Toloka AI (via Mindrift) centers on evaluating and improving AI systems. The work involves designing and solving advanced computational physics problems for major technology clients. This is not a permanent position, but rather a contract role tied to specific projects. What you will do Develop original computational physics problems that closely mirror real research workflows. Create challenges that require Python programming to solve, using libraries such as Numpy, SciPy, and Sympy. Ensure problems are complex enough that they cannot be solved manually within a reasonable time. Design tasks that require advanced reasoning in areas like mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problems on authentic research questions or practical scenarios in physics. Validate solutions using Python and established simulation tools. Clearly document each problem statement and provide accurate, verified solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline. Experience using Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is also acceptable. Minimum of 2 years of professional experience in research, application, or teaching. Proficiency in numerical simulation methods. Ability to design problems that reflect real research practices in physics. Creativity in problem-solving across multiple areas of physics. Understanding of physics modeling and approximation techniques. Strong written English skills at C1 level or higher. How to apply Submit your application. Complete the qualification steps. Join a project when selected. Work on assigned tasks. Receive compensation after completing your work. Time commitment Project tasks generally require 10–20 hours per week during active phases. Actual workload may shift based on project demands. Compensation Earn up to $35 per hour, depending on contribution and efficiency. Rates vary by project according to complexity and expertise needed. Other projects on the platform may offer different compensation based on their requirements. Location: Remote , Israel

Please submit your CV in English and indicate your English proficiency level. Mindrift connects subject-matter experts with project-based AI assignments for technology companies. The work centers on testing, evaluating, and improving AI systems. All roles are contract-based and not permanent positions. Role overview This freelance role focuses on creating and validating advanced computational physics problems that reflect real research processes. Projects challenge contributors to design original problems that require Python programming, using libraries such as Numpy, SciPy, and Sympy. Each problem should involve calculations or simulations that cannot be solved by hand in a reasonable timeframe. Expect to develop problems across mechanics, electromagnetism, thermodynamics, and quantum mechanics, drawing on genuine research challenges or practical applications. Solutions must be validated with Python and standard physics simulation tools. Clear documentation and verified answers are essential for every problem statement. Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is a plus At least 2 years of professional experience in applied research or teaching Experience with numerical simulation methods Ability to design problems that mirror authentic research workflows in physics Skill in innovative problem design across multiple physics domains Understanding of modeling and approximation techniques in physics Excellent written English skills at C1 level or higher Project process Application Qualification process Project onboarding Task completion Compensation Time commitment Active project phases usually require 10–20 hours per week. Actual workload varies by project and depends on current assignments. This estimate applies only during active project periods. Compensation Contributors can earn up to $35 per hour, depending on experience and contribution pace. Actual rates vary with project scope, complexity, and expertise required. Compensation levels differ across projects on the Mindrift platform.

Role overview Jobgether is looking for a Freelance AI Trainer with expertise in DevOps Engineering, specifically focused on automation systems. This is a remote contract role for candidates located in Israel. What you will do Build and maintain infrastructure that enables automation workflows in environments where AI and humans collaborate. Design solutions to enhance system performance, reliability, and availability for automated operations. Implement and oversee monitoring tools to keep systems observable and allow for quick detection of issues. Diagnose and resolve infrastructure problems, particularly in high-load scenarios. Work alongside AI-driven agents to help ensure systems remain stable and resilient. Who thrives here This contract fits engineers who like tackling complex infrastructure challenges and driving automation at scale. Strong background in DevOps and automation systems is required. Location and engagement Remote freelance contract Open to candidates based in Israel

Please submit your CV in English and indicate your English proficiency level. toloka-ai, through the Mindrift platform, offers project-based freelance work focused on AI system testing and improvement. These freelance assignments are remote and based in Israel, and do not represent permanent employment. Role overview This freelance role centers on designing and validating advanced computational statistics challenges. The work involves creating original problems that reflect real mathematical research, often requiring Python programming and use of libraries such as Numpy, SciPy, or Sympy. Assignments emphasize computationally intensive tasks that go beyond manual calculation, and often draw from authentic research questions or practical scenarios in mathematics. What you will do Create computational statistics problems that mirror real research. Design challenges solvable with Python, using libraries like Numpy, SciPy, or Sympy. Develop problems requiring significant computation, not feasible to solve by hand. Write tasks involving advanced reasoning in number theory, combinatorics, graph theory, and numerical analysis. Base problems on genuine research or practical mathematical situations. Validate solutions in Python with standard mathematical libraries. Document problems clearly and provide verified answers. Requirements Degree in Statistics or a related discipline. 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 experience in applied, research, or teaching roles. Excellent written English at C1 level or above. Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are advantageous. Project process Apply Complete qualifications Join a project Fulfill assigned tasks Receive compensation Time commitment During active project phases, tasks generally require 10 to 20 hours per week. Actual workload may vary and is not guaranteed, depending on project needs. Compensation Earnings can reach up to $39 per hour, depending on experience and work pace. Rates may vary across projects based on complexity and requirements. Other projects on the platform may offer different earning potential.

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.

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.

Toloka AI is seeking a freelance specialist with strong expertise in biology and Python programming. This remote role, based in Israel, centers on supporting AI training efforts with hands-on subject matter knowledge. Role overview This position involves developing training materials that help improve artificial intelligence systems, with a focus on biological data. The work includes designing content, guiding AI models, and ensuring accurate interpretation of complex biological information. What you will do Create clear and effective training content for AI models in the biology domain Facilitate learning experiences that connect biological concepts with Python programming Guide AI systems to better understand and process biological data Requirements Expertise in biology Strong programming skills in Python Ability to explain biological concepts and coding techniques clearly

Please submit your CV in English and specify your English proficiency level. Mindrift connects professionals with project-based AI assignments for leading technology companies. The focus is on testing, evaluating, and improving AI systems. All positions are project-based and do not offer permanent employment. Role overview This freelance, remote position is open to candidates based in Israel. The role centers on supporting AI development by designing and validating advanced computational physics problems. Work is organized on a project basis. What you will do Create original computational physics problems that reflect real research methodologies Develop challenges that require Python programming to solve, using libraries such as Numpy, SciPy, or Sympy Design tasks that are computationally demanding and would take significant manual effort to solve Formulate problems involving complex reasoning in areas like mechanics, electromagnetism, thermodynamics, and quantum mechanics Base assignments on authentic research questions or practical applications in physics Verify solutions using Python and established physics simulation tools Document problem statements clearly and supply confirmed correct answers Requirements Degree in Physics (theoretical, experimental, or computational) or a related discipline Experience using Python 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 in applied, research, or teaching roles Background in numerical simulation techniques Ability to design problems that mirror real-world research workflows Creative problem-solving skills across multiple physics domains Understanding of physics modeling and approximation methods Strong written English skills at C1 level or above Project workflow Apply Complete qualifications Join a project Carry out assigned tasks Receive payment Time commitment During active projects, expect to spend approximately 10–20 hours per week on tasks. Actual workload may vary based on project needs. Compensation Contributors can earn up to $35 per hour, depending on their contributions and pace. Rates vary by project according to the scope, complexity, and required expertise.

Please submit your CV in English and include your English proficiency level. toloka-ai, in partnership with Mindrift, connects specialists with project-based AI assignments for top technology companies. This freelance role focuses on evaluating, refining, and developing AI systems. It is not a permanent position. Role overview This freelance project suits optical engineers who enjoy designing computational physics problems and working with Python. Assignments involve creating and verifying complex tasks that reflect real research workflows in physics. What you will do Develop original computational physics problems that resemble actual research scenarios. Create challenges requiring Python programming, using libraries such as Numpy, SciPy, or Sympy. Design computationally intensive tasks that cannot be solved manually within a reasonable time. Build problems involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base challenges on real research questions or practical applications in physics. Verify solutions in Python, applying established simulation libraries. Write clear, detailed problem statements and provide validated solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field. Strong Python skills for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is also valued. At least 2 years of professional experience in applied, research, or academic settings. Familiarity with numerical simulation methods. Ability to design problems that reflect authentic research processes in physics. Creative approach to developing problems across multiple areas of physics. Understanding of modeling and approximation techniques in physics. Excellent written English (C1 level or higher). How to apply Apply Pass qualifications Join a project Complete assigned tasks Receive compensation Time commitment Active projects typically require about 10–20 hours per week, though actual hours may vary depending on project needs. Workload is not guaranteed and may fluctuate. Compensation Contributors can earn up to $35 per hour, depending on project scope, complexity, and required expertise. Pay rates may differ by project and are based on the nature and pace of the work.

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.

Toloka AI, through its Mindrift platform, offers project-based freelance roles for experienced supply chain professionals. This remote position is open to candidates based in Israel and centers on supporting AI development for major technology companies. As a Freelance Supply Chain Consultant - AI Trainer, the work draws on practical procurement and supply chain knowledge to test, evaluate, and improve AI systems. What you will do Develop realistic supply chain disruption scenarios inspired by real manufacturing and procurement issues, such as supplier delays, quantity changes, logistics complications, and quality failures. Define clear expected outcomes and practical mitigation steps for each scenario. Assess AI-generated recommendations for accuracy and relevance to business operations. Review outputs to ensure they fit within ERP systems, including Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP). Support the creation and validation of structured data following established guidelines. Requirements Minimum 4 years of experience in procurement, supply chain management, or purchasing, ideally within manufacturing. Solid grasp of procurement workflows, including purchase orders, vendor management, inventory control, and production planning. Hands-on experience with ERP systems such as SAP, Oracle, or Microsoft Dynamics 365. Demonstrated ability to design and analyze supply chain disruption scenarios and craft mitigation strategies. Understanding of disruption types: delays, shortages, quality issues, and logistics challenges. Familiarity with Incoterms and logistics management principles. Experience working with Bill of Materials (BOM) structures and production planning processes. Knowledge of supplier performance metrics, such as OTIF, lead times, and quality scores. Strong analytical skills to assess AI outputs against business logic. Background in data validation, structured data entry, or annotation work. Excellent written English communication skills. How the project works Apply Pass qualifications Join a project Complete assigned tasks Receive compensation Time commitment Tasks during active project phases typically require 10 to 20 hours per week. Actual workload may vary and is not guaranteed. Compensation Contributors can earn up to $50 per hour, depending on the specifics of each project.

Role overview Toloka AI seeks a Freelance Legal Consultant with strong expertise in US law. This remote contract position is based in Israel. The consultant will contribute legal knowledge to shape and improve how AI systems interpret and apply legal concepts, with an emphasis on compliance and accuracy. What you will do Apply legal experience and judgment to train AI systems Review and refine AI outputs to ensure alignment with US legal standards Collaborate with multidisciplinary teams to develop models that reflect practical legal requirements Support efforts to make technology solutions that address a broad range of client needs Collaboration This role requires regular interaction with cross-functional teams. Sharing legal insights will help guide technical choices and connect legal frameworks with AI development efforts.

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.

Please submit your CV in English and indicate your English proficiency level. Mindrift connects subject matter experts with project-based AI training work for leading technology companies. These projects center on evaluating and improving AI systems. All roles are project-based and do not represent permanent employment. Role overview This freelance, remote position is open to US Bar-admitted legal professionals based in Israel or working remotely. The work centers on using legal expertise to help Mindrift’s clients strengthen AI systems. Assignments are flexible and structured around specific projects. What you will do Create prompts that test and expand AI legal reasoning Review and evaluate AI-generated legal responses for accuracy, assumptions, and logic Refine AI outputs to ensure they align with legal standards and core principles Score multi-step legal problem-solving tasks using structured criteria Requirements Licensed legal consultant or attorney with US law experience Law degree (Bachelor, J.D., LLM, or FLLM) from an accredited US institution Minimum 2 years of legal experience within the US legal system Strong written English at C1 or C2 level Reliable internet connection How to join Apply Pass qualifications Join a project Complete assigned tasks Receive payment Project commitment During active project phases, expect to dedicate roughly 10 to 20 hours per week. Actual hours may shift based on project requirements. Compensation Project rates can reach up to $44 per hour, depending on contribution and efficiency. Compensation may vary by project, reflecting complexity, scope, and required expertise. Some projects may use different pay structures.

This remote freelance role with Toloka centers on supporting artificial intelligence projects for top technology companies. Assignments are available to candidates based in Israel and involve a variety of online tasks that help train and improve AI systems. Application note: Submit your resume in English and specify your English proficiency level. Role overview Freelance AI Trainers work on projects that may include evaluating AI-generated content, checking the accuracy of information, or comparing different responses. The workload depends on project availability, which can change over time. Key responsibilities Review data such as text, images, or videos for each assigned project Label or categorize content according to detailed project guidelines Identify and report any material that is incorrect, sensitive, inappropriate, or unclear Note: This is project-based freelance work. Tasks appear only when relevant projects are active, and participation depends on your profile and current openings. Compensation Pay varies by assignment and the expertise required. On this project, AI Trainers can earn up to $17 per hour. Learn more about Toloka at toloka.ai.

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 Annotators seeks a Freelance AI Trainer - Data Annotation Specialist to join its remote team. This contract position is open to candidates living in Israel and centers on supporting AI development projects from home. What you will do Label and annotate data accurately to support improvements in artificial intelligence systems Participate in projects that help advance AI performance Work independently as part of a distributed team Focus of the work This role involves careful data labeling and review. The goal is to help ensure AI models meet quality standards and function reliably.