Freelance AI Trainer - Data Annotation Specialist

Please submit your CV in English and specify your English proficiency level. Mindrift offers project-based contract roles for experienced data professionals. The company connects specialists with AI-focused projects at leading technology organizations. Most assignments involve testing, evaluating, or enhancing AI systems. This is not a permanent position but a contract engagement for specific projects. Role overview As a Freelance Data Science Engineer (Python & SQL), work centers on designing and validating complex data science problems. Projects span sectors such as telecom, finance, government, e-commerce, and healthcare. Tasks typically include: Creating computational problems that mirror real-world analytics workflows. Developing challenges requiring advanced Python programming, using libraries like Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, and Seaborn. Ensuring problems are computationally intensive and not solvable by hand in a short time. Building scenarios involving multi-step reasoning: data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction. Formulating deterministic problems with reproducible results, minimizing randomness by using fixed seeds where needed. Basing problems on realistic business cases such as customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Covering the full data science pipeline: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Including big data processing situations that require scalable computational solutions. Validating solutions in Python with standard data science libraries and statistical techniques. Documenting each problem clearly, including business context and verified answers. Requirements Minimum 5 years of hands-on data science experience with measurable business results. Portfolio of completed projects or publications that demonstrate real-world problem-solving. Advanced Python skills for data science, especially with Pandas, Numpy, Scipy, Scikit-learn, and Statsmodels. Expertise in statistical analysis and machine learning, with deep understanding of algorithms and their applications. Advanced SQL proficiency for data manipulation and analysis. Familiarity with Generative AI (LLMs, RAG, prompt engineering, vector databases). Understanding of MLOps and model deployment processes. Experience with frameworks such as TensorFlow, PyTorch, and LangChain. Strong written English skills (C1 level or higher). How to join Apply with a CV and indicate English proficiency. Complete the qualification process. Join a project team. Work on assigned tasks. Receive compensation for completed work. This is a remote, project-based contract role. Location: Remote , Glasgow, Scotland, United Kingdom.

Please submit your CV in English and specify your English proficiency level. toloka-ai, in partnership with Mindrift, offers flexible project-based work for experienced Data Scientists who want to help shape AI systems. This freelance engagement is remote, with a base in Glasgow, Scotland, United Kingdom. Contributors work alongside leading technology companies to test, evaluate, and improve AI models. Role overview This role centers on designing and documenting data science challenges that mirror real-world analytical problems from industries such as telecom, finance, government, e-commerce, and healthcare. The work involves creating computationally intensive tasks that require Python solutions, using libraries like Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, and Seaborn. Each challenge should be deterministic, reproducible, and grounded in practical business scenarios. What you will do Design data science problems reflecting real-world business needs, such as customer analytics, risk assessment, fraud detection, forecasting, and optimization. Create tasks involving complex data processing, statistical analysis, feature engineering, predictive modeling, and insight generation. Develop computational challenges that cannot be solved manually in a reasonable timeframe. Cover the entire data science workflow: data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Include big data scenarios and scalable computational approaches. Validate solutions in Python using standard statistical techniques. Document each problem clearly, provide realistic business context, and supply verified solutions. Requirements Minimum 5 years of hands-on data science experience with demonstrable business impact. Portfolio of completed projects or publications showing real-world problem-solving. Expert Python programming skills for data science, including Pandas, Numpy, Scipy, Sklearn, and Statsmodels. Advanced knowledge of statistical analysis and machine learning algorithms. Strong SQL skills and experience with database operations. Experience with Generative AI technologies (LLMs, Retrieval-Augmented Generation, prompt engineering, vector databases). Familiarity with MLOps practices and workflows for model deployment. Knowledge of frameworks such as TensorFlow, PyTorch, and LangChain. Excellent written English at C1 level or higher. How to apply Submit your application and CV in English. Complete the required qualification steps. Join a project and carry out assigned tasks. Receive compensation upon task completion.

Toloka AI seeks a freelance AI trainer with experience in civil engineering and Python. This contract position is fully remote and based in Glasgow, Scotland. Role overview This role centers on using civil engineering knowledge and Python programming skills to help train and refine AI models. The work supports AI projects aimed at improving efficiency in engineering tasks. Key responsibilities Use civil engineering expertise and Python programming to enhance AI model performance. Collaborate with a distributed team developing AI-driven solutions for project workflows. Offer technical input to support current and future AI initiatives within the team. Location This is a remote role based in Glasgow, Scotland, United Kingdom.

Mindrift offers project-based roles for chemistry professionals with strong Python skills. Work is remote and focuses on developing and validating computational chemistry problems for AI training. These are temporary assignments, not permanent positions. What you will do Create original computational chemistry problems that reflect real research workflows. Design problems that require Python solutions, using libraries such as NumPy, SciPy, and chemistry-specific packages. Ensure each problem is computationally intensive, beyond what could be solved manually within days or weeks. Develop scenarios needing complex reasoning in fields like physical chemistry, quantum chemistry, and molecular modeling. Base your work on actual research challenges or practical chemistry applications. Validate solutions in Python using established computational chemistry methods. Document each problem clearly and provide verified answers. 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 programming languages is also acceptable. At least 2 years of professional experience in applied, research, or educational settings. Familiarity with numerical methods and computational chemistry concepts. Strong written English skills at C1 level or higher. How to apply Submit your CV in English and specify your English proficiency. The process: apply, complete qualifications, join a project, execute tasks, and receive payment. Time commitment Expect to spend about 10–20 hours per week during active project phases. Actual workload may vary depending on project needs. Compensation Earn up to $35 per hour, depending on contribution and project complexity. Pay rates may vary for different projects on the platform.

Toloka AI seeks a Computer Science Specialist with advanced Python skills to contribute to AI projects on the Mindrift platform. This remote position is based in Glasgow, Scotland, United Kingdom. Role overview This role centers on developing new solutions for artificial intelligence initiatives. The specialist will play a direct part in advancing project goals and supporting technical progress on the Mindrift platform. Key responsibilities Apply strong Python programming skills to AI-focused projects Support the development and implementation of new solutions Work closely with the Mindrift platform team to drive progress Location This is a remote role. Candidates should be based in Glasgow, Scotland, United Kingdom.

Toloka AI is seeking a Freelance AI Trainer with a strong background in Biology and Python. This remote position is based in Glasgow, Scotland, and offers the chance to contribute to AI education projects from anywhere. Role overview This role centers on developing training materials and delivering online sessions focused on Biology and Python. The position involves working closely with teams to improve and expand Toloka AI's training programs. What you will do Create clear and engaging educational content in Biology and Python Lead online training sessions for learners Collaborate with team members to enhance program quality Location This is a remote freelance role open to candidates in Glasgow, Scotland, United Kingdom.

Please submit your CV in English and indicate your level of English proficiency. Mindrift brings together subject-matter experts and project-based AI work for leading technology companies. Projects focus on testing, evaluating, and improving AI systems. This freelance arrangement is project-based and not a permanent employment contract. Role overview This freelance AI Trainer role centers on material science and engineering projects. Assignments vary and may involve: Developing original material engineering problems that mirror real-world workflows Designing problems that require Python programming for calculations and simulations Creating computationally intensive problems using numerical methods or iterative solutions Building scenarios for system design, optimization, and analysis Formulating problems based on current research or practical engineering cases Validating solutions with Python and standard engineering libraries Clearly documenting problem statements and providing verified answers Requirements Degree in Material Science or a closely related discipline Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is valued Minimum 2 years of relevant professional experience (applied, research, or teaching) Understanding of practical engineering constraints and approximations Strong written English skills at C1 level or higher How to join Apply Complete qualification steps Join a project Finish assigned tasks Receive compensation Project commitment During active project phases, expect to spend about 10–20 hours per week on assigned work. Actual workload depends on project needs and is not guaranteed outside of active phases. Compensation Contributors can earn up to $35 per hour, depending on expertise and pace. Compensation may vary between projects based on their scope and complexity. This is a remote role. Candidates located in Glasgow, Scotland, United Kingdom are welcome to apply.

Toloka-AI is looking for a Freelance Machine Learning Engineer to work remotely from Glasgow, Scotland, United Kingdom. This contract position centers on building and improving machine learning solutions for a variety of AI projects. Key responsibilities Create scalable machine learning algorithms for practical use cases Refine and optimize existing models to boost their performance Collaborate with specialists across disciplines to address technical problems Support projects that expand AI capabilities at Toloka-AI Team environment Work alongside a group of experienced professionals in a fully remote setup. The team values technical expertise, curiosity, and a collaborative approach to solving complex challenges.

Please submit your CV in English and indicate your level of English proficiency. toloka-ai, in partnership with Mindrift, offers freelance, project-based roles focused on advancing AI systems. This opportunity is structured around temporary assignments, not permanent employment. Each project aims to test, evaluate, and improve AI capabilities through the expertise of skilled professionals. Role overview The Optical Engineer – Freelance AI Trainer works on assignments that draw on deep knowledge of optics and physics. Project tasks can include: Creating original optics problems that reflect real-world research workflows in physics Designing computationally intensive challenges that cannot be solved manually in a short time Developing problems requiring advanced reasoning across areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing assignments on authentic research scenarios or practical applications in optics and physics Documenting problem statements clearly and providing verified, accurate solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a related field Minimum of 2 years’ experience in applied, research, or teaching roles Experience with numerical simulation methods Ability to create problems that mirror real-world physics research Creative problem-solving skills across multiple physics disciplines Familiarity with modeling and approximation techniques in physics Excellent written English skills at C1 level or above This freelance role is ideal for optical engineers seeking flexible, part-time assignments without a long-term commitment. Project commitment During active project periods, tasks typically require 10–20 hours per week. Actual workload may change depending on project availability. Compensation Contributors can earn up to $35 per hour, based on skill, pace, and project requirements. Compensation depends on the scope, complexity, and expertise needed for each assignment. Application process Apply Meet qualifications Join a project Complete assigned tasks Receive compensation Location: Remote , Glasgow, Scotland, United Kingdom

Role overview Turner Townsend is hiring a Senior Planning Engineer to support project delivery in the pharmaceutical and biotechnology sectors. The role centers on planning, execution, and management of complex engineering projects, with careful attention to compliance standards in the life sciences industry. What you will do Create and maintain detailed project schedules for engineering work in life sciences. Allocate resources to align with project needs and timelines. Identify project risks and recommend mitigation steps. Collaborate with cross-functional teams to achieve project milestones. Location This position is based in Glasgow.

Mindrift is looking for a Freelance AI Workflow Engineer (AI Pilot) to join the Tendem project. This remote, part-time contract focuses on building and refining intelligent automation systems that combine large language models (LLMs) with human oversight. The position is open to candidates based in Glasgow, Scotland, or working remotely from the United Kingdom. Project: Tendem The Tendem project (https://tendem.ai/) develops hybrid automation solutions where LLMs and human agents collaborate. The goal: create scalable, dependable workflows that automate content generation, enrichment, and communication tasks. What you will do Design and evaluate workflows that integrate with LLM APIs, including OpenAI, Claude, Gemini, or similar platforms. Develop and improve AI-powered automation systems for tasks such as content creation, enrichment, and communication. Create and refine prompt frameworks to ensure consistent, high-quality results. Set up automated, personalized outreach systems for email, messaging, and lead enrichment. Structure and preprocess data to maintain stable model performance and reliable outputs. Analyze and optimize AI-driven pipelines for scalability, efficiency, and accuracy. Role overview This role calls for hands-on experience with LLM integrations, prompt engineering, and automation systems. Collaboration with Tendem Agents is central, as is applying structured thinking and quality control to workflow development. The position suits professionals comfortable working independently in a remote setting, focused on delivering robust AI solutions.

Please submit your CV in English and include your English proficiency level. This is a freelance, project-based position with Toloka AI, delivered through Mindrift. The work centers on testing, evaluating, and improving AI systems for leading technology companies. This role is not a permanent placement, but offers flexibility and remote collaboration from Glasgow or elsewhere in the United Kingdom. Role overview The Senior Python Developer - Code Migration Specialist will focus on functional testing, code migration, and advanced development workflows. Key tasks include working with large codebases, setting up Docker environments, and applying large language models (LLMs) such as Roo Code and Claude Code to automate and accelerate development. The role also involves reading and interpreting code in C, Rust, and Go, and translating migration requirements into actionable solutions. What you will do Design and implement black box functional tests for extensive codebases in various source languages. Set up, manage, and troubleshoot Docker environments for reproducible builds and consistent test execution across platforms. Track code coverage and automate scoring to ensure benchmarks are met. Utilize LLMs (Roo Code, Claude) to streamline development, automate repetitive processes, and enhance code quality. Requirements Minimum 5 years of experience as a Software Engineer, specializing in Python. Expertise with pytest, including fixtures, session-scoped tests, and timeouts, as well as black-box functional testing for CLI tools. Advanced Docker skills: writing reproducible Dockerfiles, managing user contexts, and setting up secure workspaces. Strong Linux and Bash scripting abilities, particularly for debugging within containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and work with code in C, C++, Rust, and Go using LLMs. Hands-on experience with LLMs (Claude Code, Roo Code, Cursor) for iterative development and test generation. English proficiency at B2 level or higher. Preferred qualifications Experience with agent evaluation platforms and MCP CLI. Tools and technologies Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits and work arrangement Freelance, project-based work through Mindrift in partnership with Toloka AI. Fully remote with flexible scheduling; typical workload is 20-30 hours per week. Compensation varies by project and experience. For this project, AI trainers can earn up to $50 per hour.

Join our dynamic team at Capco as a Senior Data Engineer specializing in AWS. In this pivotal role, you will design and implement robust data solutions, leveraging your expertise in cloud technologies to drive business insights and innovation. You will collaborate with cross-functional teams to enhance data systems and support our clients in achieving their strategic goals.

Mindrift seeks a Freelance Low-Code Automation Engineer (AI Workflow Specialist) to support the Tendem project. This part-time, remote contract is open to candidates in Glasgow or anywhere in the United Kingdom. Internally, this role is called AI Pilot and centers on building and refining workflow automations that combine AI with human expertise. Role overview This position focuses on designing, testing, and optimizing automation workflows for business platforms. The work involves both technical implementation and creative problem-solving to ensure that AI-driven processes run smoothly alongside human input. What you will do Design and evaluate automation workflows across various business platforms Build, test, and refine workflows using low-code tools such as Make.com and n8n, integrating APIs, webhooks, and event-driven logic Apply custom JavaScript within automation platforms for advanced logic and data transformation Ensure reliable data synchronization between systems like Airtable, Google Sheets, Notion, and different CRMs Implement error handling, logging, and fallback strategies to maintain workflow reliability Monitor automation performance, identify bottlenecks, and optimize for efficiency Automate communication and operational processes, including messaging and notifications Requirements Practical experience with low-code automation platforms, especially Make.com and n8n Background in workflow architecture and automation design Ability to use JavaScript for custom logic within automation tools Comfort working with APIs, webhooks, and integrating data across business tools Structured thinker with a practical approach to troubleshooting and optimizing workflows Interest in combining AI with human expertise to create effective automation solutions Mindrift connects specialists with innovative AI projects for leading technology companies. The team’s mission is to bring real-world expertise into Generative AI initiatives by collaborating with professionals from diverse backgrounds worldwide.

Please submit your CV in English and specify your English proficiency level. This is a remote, project-based position for candidates located in Glasgow, Scotland, United Kingdom. The role is not a permanent hire. Mindrift, supported by Toloka AI, connects experienced professionals with project-based roles in artificial intelligence. The team collaborates with top technology companies to test and refine AI systems. Role overview The Senior Python Systems Developer will focus on functional testing for a large-scale project. This position requires deep expertise in Python, strong command of Linux environments, and advanced Docker skills. The work involves handling codebases in multiple programming languages and using tools such as Roo Code or Claude Code for rapid, iterative development. What you will do Develop and implement functional black-box tests for complex codebases across several languages. Design and manage Docker environments to ensure reproducible builds and consistent test execution. Track code coverage and set up automated scoring systems to meet industry standards. Utilize large language models (LLMs) like Roo Code and Claude to automate tasks, streamline development, and improve code quality. Requirements Minimum 5 years of experience as a Software Engineer, with a primary focus on Python. Extensive background with pytest, including fixtures, session-scoped testing, and timeouts. Experience in black-box functional testing of CLI tools. Advanced knowledge of Docker, including writing reproducible Dockerfiles, managing user contexts, and securing workspaces. Proficient in Linux and Bash scripting, with the ability to debug inside containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Comfortable reading and understanding code in C, C++, Rust, or Go, with assistance from LLMs. Experience using LLMs (Claude Code, Roo Code, Cursor) to accelerate development and generate test cases. English proficiency at B2 level or above. Preferred qualifications Experience with agent evaluation platforms or MCP CLI. Tools and technologies Main stack: Python (pytest, uv, Pillow), Docker, Bash, Git Submodules, C/C++/Rust/Go (reading), Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits Freelance, project-based work through the Mindrift platform (supported by Toloka AI). Fully remote and flexible: set your own hours (20-30 hours per week). Competitive compensation: AI trainers on this project can earn up to $50 per hour.

We are seeking a highly skilled and experienced Principal AWS Data Engineer to join our dynamic team at Capco in Glasgow. In this role, you will leverage your expertise in AWS technologies to design and implement robust data solutions that drive business intelligence and analytics. You will lead projects from conception to execution, collaborating with cross-functional teams to deliver high-quality results.The ideal candidate will possess strong analytical and problem-solving abilities, along with a passion for data engineering and innovation. If you are looking to make a significant impact in a fast-paced environment, we encourage you to apply!

toloka-ai seeks a Freelance Machine Learning Developer for a contract position based remotely in Glasgow, Scotland, United Kingdom. This role centers on building and enhancing machine learning solutions in collaboration with a skilled team. Key Responsibilities Contribute to machine learning projects designed to advance current technology Apply technical expertise to develop and improve ML solutions Work closely with a distributed team to support AI-driven initiatives Location This is a remote role. Candidates should be based in Glasgow, Scotland, United Kingdom.

Role overview Toloka AI is looking for a Freelance Presentation Designer to support the team on a remote basis. Candidates may be based in Glasgow, Scotland, United Kingdom, or work from another location. This position offers flexibility while working with a distributed team. What you will do Design presentations that make complex ideas easy to understand and visually appealing Develop visual assets that reflect Toloka AI’s brand and core messaging Work closely with colleagues from various backgrounds and locations Refine and improve presentations for both internal and external audiences Work arrangement This freelance role is fully remote. Join projects from anywhere and collaborate with a global team.

Join Capco as an AWS Data Engineer and harness the power of cloud technology to drive data solutions. In this dynamic role, you will collaborate with cross-functional teams to design, implement, and optimize data pipelines on the AWS cloud platform. Your expertise in data engineering will be crucial in transforming raw data into actionable insights, enabling our clients to make informed decisions.