Freelance Machine Learning Engineer

We invite you to submit your CV in English, clearly indicating your level of English proficiency.Mindrift specializes in connecting skilled professionals with project-based AI opportunities for prominent tech companies. Our focus is on the testing, evaluation, and enhancement of AI systems. Please note that this is a project-based role, not a permanent position.About the RoleEach project offers unique challenges, and contributors may be involved in:Creating innovative computational engineering tasks that mirror real-world engineering processes;Developing problems that necessitate Python programming for solving engineering calculations and simulations;Ensuring tasks are computationally demanding, utilizing numerical methods or iterative solutions;Designing problems related to system optimization, design, and analysis;Formulating challenges based on genuine research problems or practical engineering applications;Validating solutions using Python with established engineering libraries;Clearly documenting problem statements and providing verified correct solutions.Candidate ProfileThis opportunity suits engineers experienced in Python, looking for part-time, project-based engagements. Ideal candidates will possess:A degree in Electrical Engineering or a related discipline;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any equivalent programming language is acceptable;A minimum of 2 years of relevant professional experience, whether in applied work, research, or teaching;A solid understanding of practical engineering constraints and approximations;Exceptional written English skills (C1+);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.How to Get InvolvedApplication → Qualification Process → Project Engagement → Task Completion → CompensationProject CommitmentTasks are anticipated to require approximately 10–20 hours per week during active project phases, depending on specific project needs. This is an estimate and not a guaranteed workload.Compensation DetailsParticipants can earn up to $50 per hour, contingent on their expertise and contribution pace. Compensation rates may vary across projects based on scope, complexity, and required skills. Please be aware that other projects on our platform may offer different compensation structures.

Mindrift connects mathematics specialists with project-based AI work for leading technology companies. This freelance role focuses on testing, evaluating, and improving AI systems. Projects are temporary and do not represent permanent employment. Role overview Assignments vary and may include: Designing original computational mathematics problems that reflect real research workflows Formulating problems that require Python programming for solutions, often using libraries like Numpy, SciPy, or Sympy Creating computationally intensive problems that cannot be solved manually in a reasonable timeframe Developing challenges involving advanced reasoning in number theory, combinatorics, graph theory, or numerical analysis Basing problems on authentic research challenges or practical applications in mathematics Validating solutions with Python and standard mathematical libraries Documenting problem statements clearly and providing verified solutions Requirements Degree in Mathematics (Pure or Applied) or a related discipline Strong Python skills for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries is also valued At least 2 years of experience in applied mathematics, research, or teaching Background in numerical methods and symbolic computation Ability to design problems that simulate real mathematical research processes Familiarity with computational complexity theory Excellent written English (C1+ proficiency) Project commitment Workload is estimated at 10–20 hours per week while projects are active. Actual hours may vary depending on project needs and are not guaranteed outside active phases. Compensation Contributors may earn up to $45 per hour, depending on expertise and contribution speed. Rates can vary by project based on scope and complexity. Other projects on the platform may offer different earning potentials. Application process Apply Pass qualifications Join a project Complete assigned tasks Receive payment Please submit your CV in English and specify your English proficiency level.

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.

Please submit your CV in English and specify your English proficiency level. This freelance, project-based position at Mindrift connects material scientists with expertise in Python to AI-driven projects for leading technology companies. The work focuses on testing, evaluating, and improving AI systems. This is not a permanent role. Role overview Material scientists in this role design and validate advanced engineering problems for AI training. Typical tasks include: Creating materials engineering problems that mirror real-world workflows Developing challenges that use Python for engineering calculations and simulations Ensuring problems are computationally intensive, often using numerical methods or iterative solutions Designing problems related to system design, optimization, and analytical processes Grounding tasks in real research or practical engineering scenarios Validating solutions in Python, often with established engineering libraries Documenting problem statements and providing verified solutions Requirements Degree in Material Science or a related discipline Strong Python skills for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is also valued Minimum of 2 years of professional experience in applied work, research, or teaching Solid understanding of practical engineering constraints and approximations Excellent written English at C1 level or higher How to get started Apply Meet qualification criteria Join a project Complete assigned tasks Receive payment Time commitment During active project phases, work typically requires 10–20 hours per week. Workload may vary and is not guaranteed outside of active projects. Compensation Contributors can earn up to $45 per hour, depending on project scope, complexity, and expertise. Rates may differ across projects on the platform. Location: Remote , Sweden

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.

We invite you to submit your CV in English and specify your level of English proficiency.At Mindrift, we bridge the gap between specialized talent and exciting, project-based AI roles with leading technology firms. Our focus is on testing, evaluating, and enhancing AI systems. Note: Participation is on a project basis, not permanent employment.What You Will DoEach project presents unique challenges, and contributors may:Design innovative computational physics problems that replicate actual research workflows;Create programming challenges that necessitate Python solutions (utilizing libraries such as Numpy, SciPy, and Sympy);Ensure tasks are computationally demanding and cannot be resolved manually within a reasonable timeframe;Develop problems that require sophisticated reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Base problem sets on genuine research obstacles or real-world applications from the field of physics;Verify solutions using Python and standard physics simulation libraries;Clearly document problem statements and provide validated answers.What We Are Looking ForThis role is ideal for physicists with Python experience who are interested in part-time, non-permanent engagements. Ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a related discipline;Proficiency in Python for numerical validation, with familiarity in MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or Stata being advantageous;A minimum of 2 years of professional experience in applied research or teaching;Experience with numerical simulation techniques;The capability to create problems that reflect real-world physics research workflows;Creative approaches to problem design across various physics domains;A solid understanding of physics modeling and approximation methods;Strong written English skills (C1+).Process OverviewApplication → Qualification Assessment → Project Assignment → Task Completion → PaymentProject Time CommitmentFor this project, expect to dedicate approximately 10–20 hours per week during active phases, based on specific project needs. This is an estimate and not a guaranteed workload for the duration of the project.Compensation DetailsContributors can earn up to $45 per hour, contingent upon their proficiency and contribution pace. Compensation may vary by project based on scope, complexity, and expertise required. Note that other projects may offer differing compensation levels based on their specific needs.

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects talented specialists with exciting project-based AI opportunities for leading technology companies, focusing on the testing, evaluation, and enhancement of AI systems. Note that participation is project-based and does not entail permanent employment.What This Opportunity Involves:While each project presents its own unique challenges, contributors may:Design innovative computational statistics problems that reflect authentic mathematical research workflows;Create Python-based problems requiring solutions utilizing libraries such as Numpy, SciPy, and Sympy;Ensure problems are computationally intensive, taking days or weeks to solve manually;Develop scenarios necessitating complex reasoning in fields like number theory, combinatorics, graph theory, and numerical analysis;Base problems on genuine research challenges or practical applications in mathematics;Validate solutions using Python and standard mathematical libraries;Clearly document problem statements and provide verified correct answers.What We Look For:This opportunity is ideal for statistics specialists with Python experience who are open to part-time, non-permanent projects. Ideally, candidates will possess:A degree in Statistics or related disciplines;Proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any programming language can be considered equivalent;At least 2 years of professional experience in applied, research, or teaching roles;Strong command of written English (C1+ level);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.How It Works:Apply → Pass qualification(s) → Join a project → Complete tasks → Get compensatedProject Time Expectations:During active phases, tasks are estimated to require about 10–20 hours per week, depending on project requirements. This is an estimate and not a guaranteed workload.Compensation:Contributors can earn up to $50 per hour equivalent, depending on their expertise and contribution pace. Compensation varies by project based on scope, complexity, and required expertise, and different projects may offer varying earning levels.

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 specify your English proficiency level. toloka-ai, in partnership with Mindrift, offers project-based contract opportunities for experienced data science engineers. Projects focus on testing, evaluating, and improving AI systems for leading technology clients. This is not a permanent employment role but rather contract work based on individual assignments. Role overview Freelance Data Science Engineers (Python & SQL) work on a variety of projects, each with unique analytical and computational challenges. Assignments involve designing original data science problems that reflect real-world business scenarios in sectors such as telecom, finance, government, e-commerce, and healthcare. Create computational problems that require advanced analytical workflows and cannot be solved manually in a short time. Design tasks solvable in Python, using libraries like Pandas, Numpy, Scipy, scikit-learn, Statsmodels, Matplotlib, and Seaborn. Develop scenarios involving data processing, statistical analysis, feature engineering, predictive modeling, and extracting business insights. Ensure each problem is deterministic and reproducible, using fixed seeds when randomness is necessary. Base challenges on real business needs, such as customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Cover the full data science workflow: from data ingestion and cleaning to modeling, validation, and deployment considerations. Include big data scenarios that require scalable computational solutions. Validate solutions in Python with established libraries and statistical methods. Document each problem clearly, providing realistic business context and verified answers. Requirements Minimum 5 years of hands-on data science experience with measurable business outcomes. Portfolio of completed projects or publications showing practical problem-solving skills. Advanced Python programming for data science, including experience with pandas, numpy, scipy, scikit-learn, and statsmodels. Strong knowledge of statistical analysis and machine learning algorithms. Proficient SQL skills and experience with database operations for analysis. Familiarity with Generative AI tools and techniques such as LLMs, RAG, prompt engineering, and vector databases. Understanding of MLOps and model deployment workflows. Knowledge of frameworks like TensorFlow, PyTorch, or LangChain. Excellent written English at C1 level or above. Application process Submit your CV and indicate your English proficiency level. Complete the qualification steps. If selected, join a project. Work on assigned tasks. Receive compensation for completed work. Location: Remote , Sweden

Toloka AI seeks a Freelance English Writer - AI Training Specialist to contribute to the development of advanced AI technologies. This contract position is fully remote and available to candidates located in Sweden. Responsibilities Produce clear and precise written materials for AI training projects Support the improvement of AI systems by shaping their comprehension and responses in English Requirements Excellent written English skills Strong attention to detail with a commitment to quality Genuine interest in language and technology

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 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.

Role Overview anyone-ai builds high-quality STEM training data for advanced AI models. The team’s work supports leading AI labs by supplying data essential for training and evaluating technical systems. As a Physics AI Training Specialist, the focus is on creating rigorous, deterministic physics problems that push the boundaries of AI reasoning. Each problem must have a single, verifiable answer and include a thorough, validated solution. What You Will Do Design advanced physics problems for AI training and assessment. Ensure every problem is deterministic and leads to one correct answer. Write complete, validated solutions, documenting each step of your reasoning. Develop questions that require deep physical insight and multi-step analysis, not just recall. Use Python or specialized tools to build simulations, models, or computational workflows as needed. Guarantee all outputs are technically precise, reproducible, and clearly written in English. Requirements Bachelor’s, Master’s, or PhD in Physics or a closely related field. Research or professional experience in theoretical, experimental, or computational physics. Strong Python skills, especially with scientific libraries like NumPy and SciPy. Expertise in modeling, simulation, numerical methods, and solving complex problems. Ability to design original, challenging problems that reflect real-world physics work. Meticulous attention to detail and strong technical writing skills in English. Location This is a remote position based in Sweden.

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 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.

Mindrift offers project-based remote roles for specialists in chemistry and Python, supporting the development and evaluation of AI systems for technology companies. This freelance position is open to candidates based in Sweden and is not a permanent employment opportunity. Role overview As a Freelance AI Trainer, the main focus is to create and validate computational chemistry problems that mirror real-world research workflows. Tasks include designing original scenarios that require advanced reasoning in physical chemistry, quantum chemistry, and molecular modeling. Problems should demand Python programming for resolution, often using libraries such as numpy, scipy, or other relevant chemical packages. Each problem must be computationally intensive, with solutions that cannot be completed manually in a reasonable timeframe. All problem statements and answers should be clearly documented and verified using established computational chemistry methods in Python. Requirements Degree in Chemistry or a related field Proficiency in Python for numerical validation (experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or domain-specific libraries is also acceptable) At least 2 years of professional experience in applied, research, or teaching roles Experience with numerical methods in chemistry Strong understanding of computational chemistry concepts and techniques Excellent written English skills at C1+ level Project commitment During active project phases, expect to contribute approximately 10–20 hours per week. Actual workload may vary depending on project needs. Compensation Contributors can earn up to $45 per hour, depending on expertise and the pace of contributions. Compensation may differ between projects based on complexity, scope, and required skills. How to apply Please submit your CV in English and include your English proficiency level. The process involves applying, passing qualifications, joining a project, completing assigned tasks, and receiving compensation.

Are you a passionate Finnish language expert ready to influence the future of artificial intelligence? As large-scale language models advance from simple chatbots to sophisticated tools for linguistic exploration, your contribution is crucial. By providing high-quality training data, you can help democratize access to top-tier education, align with pioneering research, and enhance communication for Finnish speakers globally. Your expertise will be the foundation for the next generation of AI. We are seeking Finnish language specialists who possess a deep understanding of Finnish grammar, syntax, morphology, spelling, phonology, and pragmatics. You will rigorously assess advanced language models on various topics, including verb conjugation, case inflection, vowel harmony, sentence structure, formal versus informal language, regional dialects, and the subtle intricacies of the Finnish writing system, meticulously documenting all error instances to strengthen model reasoning. In your daily routine, you will engage with the model in discussions around language scenarios, verify factual accuracy and logical consistency, document reproducible error patterns, and propose enhancements to our prompt engineering and evaluation methodologies. An ideal candidate will hold a master's degree or PhD in Finnish language, linguistics, or a closely related field. Experience such as peer-reviewed publications, teaching, or hands-on linguistic projects will be advantageous. Clear communication skills, particularly in conveying your methodologies, are essential. If you are ready to transform your Finnish language expertise into the knowledge foundation for tomorrow's AI, we encourage you to apply today and help mold the model that will educate the world.

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.

Mindrift is looking for a Freelance Low-Code Automation Engineer to support the Tendem project. This part-time contract is remote within Sweden. The main focus is building and refining automation workflows that connect AI tools with human input, using platforms such as Make.com and n8n. Key Responsibilities Design and optimize automation workflows that combine AI features with human collaboration. Partner with Tendem Agents to identify repetitive tasks and automate them efficiently. Apply analytical skills to ensure workflows operate smoothly across different systems. Test, refine, and scale automation solutions using quality assurance methods. Use JavaScript to customize workflows as project needs arise. Requirements Hands-on experience with low-code automation platforms, especially Make.com and n8n. Background in workflow design and process automation. Proficiency in JavaScript for customizing workflows. Strong analytical skills, attention to detail, and a commitment to quality. Ability to work remotely and collaborate with distributed teams. Role Details Part-time freelance contract Remote role based in Sweden For more details about the Tendem project, visit tendem.ai.

Role overview Toloka AI is hiring a Computer Science Specialist with strong Python expertise to join AI-focused projects. This is a remote position available to candidates living in Sweden. The role centers on applying advanced programming skills to support and advance artificial intelligence initiatives. What you will do Collaborate with a distributed team to design and enhance AI solutions for practical use cases Tackle technical challenges in artificial intelligence using strong problem-solving abilities Bring deep knowledge of Python and computer science to projects across various industries Requirements Solid foundation in computer science Advanced Python programming skills Background or interest in AI technologies Comfort working with remote teams Residence in Sweden