Civil Engineer & Python Specialist - Freelance AI Trainer

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. 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.

Please submit your CV in English and indicate your English proficiency level. Mindrift connects experienced professionals with project-based AI work for leading technology companies. Assignments focus on assessing, evaluating, and improving AI systems. This is a non-permanent, project-based role. Role overview The Freelance AI Trainer - Research Physicist contributes to diverse projects, each with its own objectives. Typical responsibilities include: Writing original optics problems that reflect real research processes in physics Designing computationally challenging problems that may require days or weeks to solve Developing complex scenarios involving detailed reasoning in areas such as mechanics, electromagnetism, thermodynamics, and quantum mechanics Creating problems based on real-world research challenges or relevant situations from optics and physics Clearly documenting problem statements and providing 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) Background in numerical simulation methods Ability to design problems that mirror actual physics research workflows Creative approach to problem design across multiple physics disciplines Familiarity with physics modeling and approximation techniques Strong English writing skills at C1 level or higher Project commitment Assignments typically require 10–20 hours per week during active project periods. Actual workload depends on project needs and may vary outside active phases. Compensation Rates can reach up to $45 per hour, depending on experience and project pace. Compensation varies according to project complexity and required expertise. Other projects on the platform may offer different pay based on their specific requirements. Application process Apply Pass qualifications Join a project Complete tasks Receive payment

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.

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.

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.

Toloka AI seeks a Freelance Junior Journalist - AI Trainer to support projects that connect journalism with artificial intelligence. This contract position is fully remote and open to candidates living in Sweden. Role overview This role centers on collaborating with professionals who are advancing AI-driven journalism. The work involves both content creation and the development of tools that assist in the evolution of news reporting through technology. What you will do Collaborate with experienced team members on journalism initiatives powered by AI Create and curate written content to help train and refine AI models Offer feedback and ideas to improve tools and workflows for the team Requirements Interest in journalism and new technology Ability to work independently and communicate effectively online Residence in Sweden

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.

This freelance, project-based role with Mindrift centers on supply chain consulting and AI training. The position is remote and open to candidates based in Sweden. Please note: this is not a permanent employment arrangement. Role overview Mindrift brings together experienced professionals and leading technology firms for AI-driven projects. As a Freelance Supply Chain Consultant & AI Trainer, the focus will be on using practical expertise to create realistic disruption scenarios, define outcomes and mitigation strategies, and review AI-generated recommendations for accuracy and business relevance. What you will do Design credible supply chain disruption scenarios based on real procurement and manufacturing challenges, such as supplier delays, quantity changes, logistics problems, or quality issues. Outline expected outcomes and effective mitigation plans for each scenario. Evaluate AI-generated responses and recommendations, ensuring they align with established business logic. Review outputs for accuracy and relevance within ERP systems, with emphasis on Microsoft Dynamics 365, Coupa, Jaggaer, and Ariba (SAP). Support structured data creation and validation tasks according to provided guidelines and frameworks. Requirements Minimum 4 years of hands-on experience in procurement, supply chain, or purchasing, preferably in a manufacturing environment. Strong understanding of procurement workflows, including purchase orders, vendor management, inventory, and production planning. Direct experience with ERP platforms such as SAP, Oracle, or Microsoft Dynamics 365. Ability to design and analyze supply chain disruption scenarios and develop mitigation strategies. Knowledge of disruption types: delays, shortages, quality concerns, and logistics challenges. Familiarity with Incoterms, transportation, and logistics management. Understanding of Bill of Materials (BOM) structures and production planning processes. Experience with supplier performance metrics, including On-Time In-Full (OTIF), lead times, and quality scores. Analytical skills to evaluate AI outputs against practical business logic. Background in data validation, structured data entry, or annotation work. Strong written communication skills in English. Application process Apply Meet qualification requirements Join a project Complete assigned tasks Receive payment Project time commitment During active project phases, tasks usually require between 10 and 20 hours per week. Actual workload may vary and is only applicable while a project is ongoing. Compensation Contributors may earn up to $60 per hour, depending on qualifications and experience.

Join IonQ, a pioneer in quantum computing, where we are crafting the most advanced full-stack quantum computer utilizing trapped-ion technology. We are breaking through the frontiers of classical physics and current supercomputing capabilities to usher in a revolutionary era of computing. Our quantum computers have the potential to transform every facet of society for the greater good, redefining sectors such as medicine, materials science, finance, artificial intelligence, machine learning, and cryptography. At IonQ, we are leading the charge in this exciting technological evolution.We invite you to apply for the role of Staff Quantum Applications Scientist - Life Sciences. In this position, you will collaborate with a dynamic, cross-functional team dedicated to delivering unparalleled quantum solutions in life sciences, using cutting-edge quantum computers to tackle some of the most intricate and consequential challenges. This opportunity is part of IonQ’s Quantum Applications team, located in either Gothenburg, Sweden, or Toronto, Canada. You will engage closely with partners in the life sciences innovation ecosystem and beyond to create innovative hybrid quantum applications that yield substantial commercial benefits.

Mindrift seeks a freelance n8n Workflow Developer – AI Trainer to support the Tendem project (https://tendem.ai/). This remote, part-time role centers on building and refining automation workflows for a system that blends AI with human input. The position is open to candidates based in Sweden. Role overview In this role, the developer acts as an AI Pilot, collaborating with Tendem Agents who manage routine tasks. The work involves structured thinking, automation, and quality control to ensure workflows run smoothly and reliably. Experience with no-code automation, workflow design, and process optimization across various business systems is important. What you will do Design, develop, and evaluate advanced workflows in self-hosted n8n environments Architect integrations across multiple systems to create scalable automation pipelines Create and enhance AI-driven workflows, including those for content generation and data enrichment Build and maintain automation for lead generation, outreach, and data processing Implement web scraping workflows for reliable data extraction and processing Optimize workflow execution, node sequencing, and error management to minimize failures, delays, and API timeouts Compensation Contributors can earn $60 per hour, depending on contribution level and pace. Compensation may vary between projects based on specific requirements and expertise needed.

Please submit your resume in English and include your English proficiency level. Toloka connects people around the world with freelance online projects that support the training and improvement of artificial intelligence systems. This remote, project-based position is open to candidates located in Sweden. As a Freelance AI Trainer and Annotator (English), the work centers on helping AI systems better understand language and content. Assignments may involve reviewing AI-generated responses, evaluating their accuracy, and comparing different outputs. Main responsibilities Review and analyze data, which can include text, images, or videos. Label or categorize content based on detailed project instructions. Flag and report content that is inaccurate, sensitive, inappropriate, or unclear. This is a freelance, project-based role. Tasks are available only when projects are active, and invitations to participate depend on your profile and current opportunities. Compensation Pay rates depend on project scope and required expertise. AI trainers can earn up to $22 per hour.

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.

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

Join Eurofins Scientific, a global leader in laboratory services, as a Research Scientist in our Stockholm facility. In this pivotal role, you will conduct innovative research and contribute to groundbreaking projects in the Testing & Laboratory department. Your expertise will help in delivering high-quality scientific solutions and advancing our mission to improve the health and safety of our communities.

Are you a passionate expert in the Danish language ready to influence the future of artificial intelligence? As large-scale language models transition from simple chatbots to advanced engines of linguistic exploration, your contribution will be instrumental. By providing high-quality training data, you can help create AI that democratizes education, advances research, and enhances communication for Danish speakers around the globe.We are seeking Danish language specialists who possess a deep understanding of Danish grammar, syntax, morphology, spelling, phonology, and pragmatics. You will engage with advanced language models, challenging them on aspects such as verb conjugation, sentence structure, levels of formality, regional dialects, word order, and the subtleties of the Danish writing system. Your role will involve documenting errors to strengthen the model's reasoning capabilities.Your daily tasks will include conversing with the model on various linguistic scenarios, verifying factual accuracy and logical coherence, capturing reproducible error patterns, and proposing enhancements to our prompt engineering and evaluation methods.An advanced degree (Master's or PhD) in Danish language, linguistics, or a closely related field is preferred. Experience with peer-reviewed publications, teaching, or practical linguistic analysis projects will be considered beneficial. Clear communication, especially in demonstrating your analytical process, is crucial.If you're ready to leverage your Danish language expertise to build the knowledge base for the next generation of AI, apply now and be part of a project that will educate the world.