Freelance Optical Engineer with Python Expertise

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.

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.

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.

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 include your English proficiency level. Mindrift connects skilled specialists with project-based AI work for leading technology companies. The focus is on testing, evaluating, and improving AI systems. This is a project-based role, not a permanent job. Role overview This freelance, remote position supports AI projects from Glasgow, Scotland, or elsewhere in the UK. Assignments are project-based and do not constitute ongoing employment. What you will do Create original computational statistics problems that mirror real mathematical research workflows Design challenges that require Python solutions, using libraries such as Numpy, SciPy, and Sympy Ensure that tasks are computationally intensive and not easily solved by hand Develop problems involving advanced reasoning in number theory, combinatorics, graph theory, or numerical analysis Base assignments on real research or practical mathematical applications Validate solutions using Python and standard mathematical libraries Document problem statements clearly and provide verified solutions 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 valued At least 2 years of relevant experience in applied, research, or teaching roles Excellent written English (C1 level or higher) Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are a plus How projects work Apply with your CV and English level Complete the required qualifications Join a project Work on assigned tasks Receive payment for completed work Time commitment During active project phases, expect to spend around 10–20 hours per week. Actual workload depends on project needs and is not guaranteed outside active assignments. Compensation Earn up to $43 per hour, depending on contribution and speed. Actual rates vary by project based on complexity, scope, and expertise required.

Please submit your CV in English and include your English proficiency level. Mindrift connects experienced engineers with project-based AI initiatives for technology companies. These projects focus on testing, evaluating, and refining AI systems. This freelance, project-based position does not represent permanent employment. Role overview This freelance role centers on designing and validating computational engineering problems that mirror real-world workflows. The work is remote, with a focus on Glasgow, Scotland, United Kingdom, though candidates may contribute from any location. What you will do Create original engineering problems that reflect genuine engineering processes Develop challenges that require Python programming for calculations and simulations Design computationally intensive problems using numerical methods or iterative techniques Incorporate system design, optimization, and analysis tasks Base scenarios on research or real-life engineering applications Validate solutions with Python and standard engineering libraries Document problem statements clearly and provide verified solutions Key qualifications Degree in Mechanical Engineering or a closely related field Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is valued At least 2 years of professional experience in applied engineering, research, or teaching Understanding of practical engineering constraints and approximations Strong written English skills at C1 level or above Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are considered a plus How projects work Apply Complete qualifications Join a project Carry out assigned tasks Receive payment Time commitment Most tasks require around 10–20 hours per week during active project phases. The actual workload will vary depending on project needs. Compensation Contributors may earn up to $36 per hour, depending on skill and contribution speed. Rates can differ by project based on complexity, scope, and required expertise.

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.

Please submit a CV in English and specify your English proficiency level. Mindrift matches professionals with project-based freelance AI roles for top technology companies. Work centers on testing, evaluating, and improving AI systems. These roles are not permanent employment but are structured around specific projects. Role overview This freelance position focuses on creating and validating engineering tasks for AI training. Projects change over time, and responsibilities may include: Designing computational engineering problems that reflect real-world workflows Developing programming assignments using Python for engineering calculations and simulations Building tasks involving significant computation, numerical methods, or iterative solutions Writing engineering problems centered on system design, optimization, or analysis Basing assignments on actual research challenges or practical engineering scenarios Validating solutions in Python with standard engineering libraries Documenting problem statements clearly and providing verified solutions Requirements Degree in Electrical Engineering or a related field Strong Python skills for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar tools is a plus Minimum 2 years of professional experience (applied, research, or teaching) Understanding of practical engineering constraints and approximations Excellent written English (C1 level or higher) Professional certifications (such as CMME, SAS Certifications, CAP) and experience with international or applied projects are advantageous How projects work The process includes: Application, Qualification(s), Project Engagement, Task Completion, and Compensation. Time commitment Typical tasks require 10–20 hours per week during peak project periods. Actual workload may vary depending on project needs and is not guaranteed. Compensation Contributors can earn up to $36 per hour, based on experience and task completion rate. Rates may vary by project depending on complexity, scope, and required expertise. Location This is a remote freelance position. Candidates in Glasgow, Scotland, United Kingdom are encouraged to apply.

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.

Toloka Annotators is hiring a Freelance AI Trainer - Data Annotation Specialist. This remote position is available to those based in Glasgow, Scotland, United Kingdom. The role centers on supporting AI model development by labeling data with precision and care. Key Responsibilities Annotate various datasets used for training and improving AI systems Maintain high standards of accuracy and consistency in all data labeling tasks Help enhance the quality and performance of AI applications by providing dependable annotations Location This is a fully remote opportunity for candidates residing in Glasgow, Scotland, United Kingdom.

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to help shape artificial intelligence systems. This contract role is remote and open to candidates located in Glasgow, Scotland, United Kingdom. Key responsibilities Create and curate training data for AI projects Use journalistic skills to produce content that is clear and accurate Support the improvement of AI’s understanding and information generation Uphold ethical standards in all aspects of content and data work Collaboration and work style This freelance position allows for full remote work. Join a team of professionals from different backgrounds while working from your own location.

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

Please submit your CV in English and specify your level of English proficiency. Mindrift matches skilled professionals with freelance, project-based work focused on testing and improving AI systems for technology companies. This is not a permanent position; assignments vary by project. Role overview This freelance AI Trainer role is designed for research physicists interested in part-time, flexible work. Assignments center on creating and documenting advanced physics problems for AI training. Tasks may include: Designing original optics problems that reflect real research workflows in physics Developing computationally intensive challenges that cannot be solved manually in a reasonable timeframe Writing problems requiring advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics Basing assignments on authentic research or practical applications in optics and physics Clearly documenting problem statements and supplying verified, correct solutions Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field At least 2 years of experience in applied, research, or teaching roles Familiarity with numerical simulation techniques Ability to design problems reflecting real-world physics research workflows Creative problem-solving across multiple physics disciplines Understanding of physics modeling and approximation methods Advanced written English skills (C1 level or higher) Application process Apply Pass qualification(s) Join a project Complete assigned tasks Receive compensation Time commitment Project phases typically require 10–20 hours per week. Actual workload depends on project needs and may vary outside of active phases. Compensation Contributors can earn up to $35 per hour, depending on expertise, pace, and project complexity. Pay rates may differ for other projects on the platform. Location: Remote , Glasgow, Scotland, United Kingdom

Toloka AI seeks a Freelance English Writer & AI Trainer to help build and refine AI models. This contract role is fully remote and open to candidates living in Glasgow, Scotland, or elsewhere in the UK. Key responsibilities Write clear, precise content to support AI training tasks Create training materials aimed at improving AI language understanding Use expertise in English and artificial intelligence to ensure high-quality data Collaboration and work style Work from home while collaborating with Toloka AI's team. Contribute language and AI knowledge without needing to commute, making it possible to participate from anywhere in Glasgow or across the United Kingdom.

Toloka AI seeks a Freelance Mathematics Expert for a contract role based remotely in Glasgow, Scotland, United Kingdom. This position centers on applying advanced mathematical knowledge to support the development of artificial intelligence projects. Key Responsibilities Apply mathematical skills to train and enhance AI algorithms Review, refine, and test algorithmic solutions for accuracy and efficiency Work alongside colleagues from diverse backgrounds on projects shaping AI technology Collaboration and Work Style This freelance role is fully remote. Toloka AI values contributions from professionals across multiple disciplines, all working together to address complex challenges in artificial intelligence.

Mindrift is hiring a Senior Python Data Scraping Engineer for a freelance, remote role based in Glasgow, Scotland, United Kingdom. This position focuses on the Tendem project and involves guiding data extraction workflows as an AI Pilot. The work is part-time and designed for professionals with strong experience in web scraping, data extraction, and data processing. Role Overview This role centers on overseeing the full data extraction process from complex websites. The Senior Python Data Scraping Engineer will collaborate with Tendem Agents, who manage repetitive tasks, while taking responsibility for the technical direction and quality of data workflows. What You Will Do Manage end-to-end extraction of structured datasets from a range of complex web sources, ensuring accuracy and timely completion. Utilize internal tools such as Apify and OpenRouter, and apply custom strategies to improve efficiency in data collection and validation. Adjust scraping techniques for dynamic and JavaScript-heavy websites with varying structures. Conduct thorough validation to maintain high data quality, ensuring consistency and correct formatting across all sources. Scale data operations by batching or parallelizing tasks, monitor for failures, and respond to minor changes in website layouts. Compensation Freelance contributors on this project can earn up to $37 per hour, depending on experience and pace. Actual rates may vary based on project scope, complexity, and required expertise.

This freelance, remote role centers on developing and refining automation workflows for the Tendem project, using n8n in a hybrid AI and human environment. Based in Glasgow, Scotland (or working remotely), the position is open to professionals skilled in no-code automation, workflow design, and business system optimization. Role overview As an AI Pilot, collaboration is key. You will work alongside Tendem Agents who handle repetitive operational tasks. The focus is on ensuring that automation workflows run efficiently, with a structured approach and a strong eye for quality and reliability. What you will do Design, build, and assess advanced workflows in self-hosted n8n environments. Architect integrations between multiple systems to create scalable automation pipelines. Develop and enhance AI-driven workflows for tasks such as content generation and data enrichment. Set up and maintain automation for lead generation, outreach, and data processing. Implement and oversee web scraping workflows to ensure consistent data extraction and processing. Optimize workflow execution, including node sequencing and error handling, to minimize failures and delays. Compensation Contributors may earn up to $60 per hour, depending on experience and the nature of project contributions. Actual compensation varies by project scope and required expertise.

This freelance, project-based role with Mindrift focuses on supporting AI development for supply chain and procurement systems. Work remotely from Glasgow, Scotland, or anywhere in the United Kingdom. Mindrift connects experienced professionals with technology firms to help test and refine AI tools. This is not a permanent position. Role overview The Freelance Supply Chain Consultant - AI Trainer applies procurement and supply chain expertise to shape realistic disruption scenarios, define expected outcomes and mitigation steps, and review AI-generated recommendations for accuracy and business fit. This work helps improve the quality and relevance of AI systems used in manufacturing and procurement. What you will do Design scenarios that reflect real-world supply chain disruptions, such as supplier delays, quantity changes, logistics issues, or quality failures. Outline expected results and effective mitigation strategies for each scenario. Assess AI-generated responses for business logic, accuracy, and completeness. Review outputs within ERP systems, including Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP). Support the creation and validation of structured data by following set guidelines. Requirements Minimum 4 years of hands-on experience in procurement, supply chain, or purchasing, ideally in manufacturing. Strong knowledge of procurement workflows, including purchase orders, vendor management, inventory, and production planning. Direct experience with ERP systems such as SAP, Oracle, or Microsoft Dynamics 365. Ability to design and analyze supply chain disruption scenarios and mitigation strategies. Understanding of disruption types: delays, shortages, quality issues, and logistics challenges. Knowledge of Incoterms and logistics or transportation management. Familiarity with BOM structures and production planning processes. Experience tracking supplier performance metrics (OTIF, lead times, quality scores). Strong analytical skills for evaluating AI outputs against business logic. Background in data validation, structured data entry, or annotation tasks. Excellent written English communication skills. How the project works Apply Pass qualification(s) Join a project Complete tasks Get compensated Time commitment Estimated workload is 10-20 hours per week during active phases. The actual number of hours may vary depending on project needs. Compensation Contributors can earn up to $60 per hour, depending on experience and project requirements.

Toloka AI is looking for a Freelance Legal Consultant with a strong background in US law. This remote position centers on bringing legal expertise to the training and development of AI systems. Key responsibilities Use knowledge of US law to help train and improve AI models Assess AI-generated outputs for legal accuracy and compliance Provide guidance on relevant legal standards and identify potential risks Share insights to enhance how AI addresses legal topics Location This role is fully remote. While Toloka AI is headquartered in Glasgow, Scotland, the company welcomes applicants able to advise on US law from any location.