Senior Python Systems Developer for Functional Testing

Please submit your CV in English and indicate your English proficiency level. This Senior Python Systems Developer role is a project-based, freelance opportunity with Toloka AI (via Mindrift), supporting top technology companies in testing and improving AI systems. The position is remote and based in Stuttgart, Baden-Württemberg, Germany, but open to candida…

Please submit your CV in English and specify your English proficiency level. This freelance role connects experienced Python developers with project-based work in AI system assessment, testing, and improvement. Mindrift, in partnership with toloka-ai, matches skilled professionals to assignments at leading technology companies. The engagement is not permanent but offers flexibility and remote work, based in Stuttgart, Baden-Württemberg, Germany or remotely. Role overview The Senior Python Developer - Code Migration Expert focuses on interpreting requirements, designing migration tasks, and using LLM-powered tools (such as Roo Code and Claude Code) to streamline development. The position calls for strong skills in functional testing, Linux, and Docker. Comfort with reading code in languages like C, Rust, and Go (with LLM support) is important. Main responsibilities Develop functional black box tests for large codebases in various languages. Create and manage Docker environments to ensure reproducible builds and test runs across platforms. Track code coverage and implement automated scoring to meet industry standards. Use LLMs (Roo Code, Claude) to accelerate development, automate repetitive work, and improve code quality. Requirements Minimum 5 years of experience as a Software Engineer, focusing on Python. Expertise with pytest, including fixtures, session-scope, timeouts, and black-box functional test design for CLI tools. Advanced Docker skills: building reproducible Dockerfiles, managing user contexts, and maintaining secure workspaces. Strong command of Linux and Bash scripting, including debugging inside containers. Familiarity with modern Python tooling (uv, pyproject.toml, packaging). Ability to read and understand multiple programming languages (such as C, C++, Rust, or Go) with LLM assistance. Experience using LLMs (Claude Code, Roo Code, Cursor) for faster development cycles and generating test cases. 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, reading C/C++/Rust/Go, Dagger, GitHub Codespaces, LLMs (Claude Code, Roo Code, Cursor), coverage.py, gcov, kcov. Benefits and work arrangement Freelance, project-based collaboration through the Mindrift platform (powered by Toloka AI). Fully remote work with flexible hours, typically 20-30 hours per week. Compensation per project depends on scope and expertise; AI trainers may earn up to $50 per hour equivalent.

Join Bosch Group as an intern in Full Stack Development, focusing on innovative laser prototypes. This role offers a unique opportunity to work with technologies such as C#, XAML, and Python. You will collaborate with experienced developers, engage in hands-on projects, and contribute to cutting-edge solutions in the field.

As a Senior Manager of Systems Engineering in the EPCM industry, you will lead complex projects, ensuring that systems engineering processes are effectively implemented and aligned with business strategies. You will play a crucial role in managing multidisciplinary teams, driving innovation, and enhancing project outcomes. Your expertise will be pivotal in optimizing engineering processes and fostering collaboration across departments.

We invite you to submit your CV in English, including your level of English proficiency.Mindrift specializes in connecting talented professionals with project-based opportunities in artificial intelligence for top technology firms, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is project-based and does not constitute permanent employment.Role OverviewAs an Optical Engineer, your contributions will vary by project, but may include: Designing original computational physics problems that simulate authentic physics research workflows;Creating challenges requiring Python programming solutions (utilizing libraries such as Numpy, SciPy, and Sympy);Ensuring that problems are computationally intensive, requiring days or weeks to solve manually;Developing intricate reasoning chains in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Grounding challenges in real research issues or practical applications within physics;Verifying solutions using Python alongside standard physics simulation libraries;Providing clearly documented problem statements and verified correct answers.QualificationsThis role is perfect for Optical Engineers with Python expertise seeking part-time, non-permanent projects. 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 any domain-specific libraries;A minimum of 2 years of professional experience, including applied, research, or teaching roles;Experience with numerical simulation techniques;Capability to design problems that closely reflect real physics research workflows;Innovative problem-solving skills across various physics domains;Knowledge of physics modeling and approximation techniques;Strong command of written English (C1+ level).Application ProcessTo get started, apply → pass qualifications → join a project → complete tasks → receive payment.Project CommitmentTasks for this project are estimated to require approximately 10–20 hours per week during active project phases, subject to project demands. This is an estimate and not a guaranteed workload.CompensationContributors may earn up to $45 per hour, depending on individual levels of contribution and project needs. Please be aware that compensation may vary by project scope, complexity, and required expertise.

We invite you to submit your CV in English, detailing your English proficiency level.Mindrift is a dynamic platform that connects skilled professionals with project-based AI opportunities at top tech companies, emphasizing the assessment, evaluation, and enhancement of AI systems. Please note that this role is project-based and does not offer permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may be required to:Devise innovative computational physics problems that replicate real-world physics research workflows;Generate problems that necessitate Python programming for resolution (utilizing Numpy, SciPy, Sympy);Ensure that problems are computationally demanding and cannot be resolved manually within practical timeframes (days/weeks);Create problems involving substantial reasoning chains across mechanics, electromagnetism, thermodynamics, and quantum mechanics;Base problems on authentic research challenges or practical scenarios from the field of physics;Validate solutions via Python using standard physics simulation libraries;Clearly document problem statements and provide verified solutions.Preferred QualificationsThis opportunity is ideal for individuals with a background in physics and Python programming, who are interested in part-time, non-permanent projects. The ideal candidate should 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 other domain-specific libraries considered equivalent;A minimum of 2 years of relevant professional experience: applicable experience includes applied research or teaching;Expertise in numerical simulation techniques;The ability to craft problems that reflect real physics research workflows;Creative problem-solving skills across various domains of physics;Strong written English skills (C1+).How to Get StartedInterested candidates should apply, pass the qualifications, join a project, complete the tasks, and receive payment.Project CommitmentFor this project, tasks are estimated to require approximately 10–20 hours per week during active phases, subject to project requirements. This is an estimate and not a guaranteed workload, applicable only while the project is ongoing.CompensationContributors can earn up to $45 per hour, depending on their experience and contribution pace. Please note that compensation may vary across projects based on scope, complexity, and required expertise.

Toloka-AI seeks a Computer Science Specialist with advanced Python skills to join its remote team based in Stuttgart, Baden-Württemberg, Germany. This role centers on supporting AI-driven projects that serve a global audience. Key Responsibilities Design and improve artificial intelligence solutions using Python Collaborate with fellow specialists on projects with worldwide impact Tackle challenging technical problems in the AI domain Make meaningful contributions to projects with practical applications About Toloka-AI Toloka-AI develops products powered by artificial intelligence, aiming for broad global use and tangible results. The company emphasizes teamwork and a commitment to technical quality in every initiative.

We kindly request that you submit your CV in English, along with a clear indication of your English language proficiency.Mindrift connects talented specialists with project-based AI opportunities from leading technology firms, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is project-based and does not constitute permanent employment.Role OverviewEach project presents its own unique challenges, and contributors may be expected to:Craft innovative computational engineering problems that replicate real-world engineering workflows;Develop problems that necessitate Python programming for solving engineering calculations and simulations;Ensure problems are computationally intensive and utilize numerical methods or iterative solutions;Create problems related to system design, optimization, and analysis;Base problems on genuine research challenges or practical applications within engineering;Validate solutions using Python and standard engineering libraries;Clearly document problem statements and provide verified correct answers.Desired QualificationsThis role is ideal for engineers with experience in Python who are open to part-time, non-permanent projects. Ideally, candidates will possess:A degree in Mechanical Engineering or a related field;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, or any comparable programming language is also acceptable;A minimum of 2 years of professional experience, including applied, research, or teaching experience;Understanding of practical engineering limitations and approximations;Strong written English skills (C1+ level);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are advantageous.How the Process WorksApply → Successfully pass qualification(s) → Engage in a project → Complete assigned tasks → Receive payment.Project Time ExpectationsFor this project, tasks are estimated to require approximately 10–20 hours per week during active phases, depending on project demands. This is an estimate and does not guarantee a specific workload, applicable only while the project is ongoing.CompensationContributors may earn up to $50 per hour, contingent on their expertise and contribution pace. Compensation varies across projects based on scope, complexity, and required skill set. Note that other projects on the platform may offer different earning potentials based on their specific requirements.

We are seeking an experienced Senior Planner (w/m/d) specializing in the EPCM industry to join our dynamic team at dreessommerse. This role focuses on TGA planning for sanitary systems and offers an opportunity to lead innovative projects in a fast-paced environment. As a Senior Planner, you will be responsible for developing and implementing detailed plans to ensure the successful execution of projects from conception to completion.

Join our innovative INSPO team as a Senior Backend Infrastructure Developer. In this role, you will leverage your expertise to design and implement robust backend solutions that support our growing infrastructure. Collaborate with cross-functional teams to ensure seamless integration and optimization of our systems, all while enjoying the flexibility of remote work.

Toloka AI is looking for a Freelance AI Trainer with a strong background in biology and Python programming. This remote role is based in Stuttgart, Baden-Württemberg, Germany. Role overview This position centers on using knowledge of biological sciences and Python to support the development and improvement of AI training programs. The work involves applying subject matter expertise to help shape AI solutions in the life sciences. What you will do Apply biology and programming skills to design and refine AI training materials Contribute to projects that advance AI applications in scientific fields Requirements Expertise in biology Proficiency in Python Interest in AI development

Mindrift is seeking talented Python Data Scraping Engineers to contribute to the Tendem project, enhancing our innovative hybrid AI and human system through specialized data scraping workflows.In the capacity of an AI Pilot, as we refer to this role at Mindrift, you will work collaboratively with Tendem Agents executing repetitive tasks, while you apply your critical thinking, domain expertise, and quality assurance skills to deliver precise and actionable data.This part-time remote position is ideally suited for technical experts with substantial experience in web scraping, data extraction, and processing.About UsThe Mindrift platform bridges specialists with AI projects from leading technology innovators. Our mission is to harness the power of Generative AI by leveraging expertise from specialists around the world.Role OverviewThis freelance role is part of the Tendem project. As a Python Data Scraping Engineer, you will be responsible for executing data scraping tasks with a focus on technical accuracy for web extraction and processing, employing various tools such as Apify and OpenRouter, along with your own innovative methods.Key ResponsibilitiesManage end-to-end data extraction processes across intricate websites, ensuring thorough coverage, accuracy, and dependable delivery of structured datasets.Utilize internal tools (Apify, OpenRouter) along with custom workflows to expedite data collection, validation, and task execution while adhering to defined specifications.Guarantee reliable data extraction from dynamic and interactive web sources, modifying strategies as necessary to accommodate JavaScript-rendered content and evolving site behavior.Maintain data quality standards through validation checks, cross-source consistency controls, adherence to formatting guidelines, and systematic verification prior to data delivery.Enhance scraping operations for large datasets through efficient batching or parallelization, monitor failures, and ensure stability in response to minor changes in site structure.CompensationContributors can earn up to $32 per hour, based on their experience and contribution speed. Note that compensation varies by project depending on its scope, complexity, and required expertise.How to ApplyTo get started, simply apply to this posting, qualify, and you will have the opportunity to work on projects that align with your technical skills, on your own schedule. From coding and automation to refining AI outputs, you will play a pivotal role in advancing AI capabilities and real-world applications.

Please submit your CV in English and indicate your English proficiency level. toloka-ai, working with Mindrift, connects data science professionals to project-based contract work in AI. Assignments support technology companies as they develop, test, and evaluate AI systems. This is not a permanent employment role; work is structured around specific projects. Role overview Design computational data science problems that mirror analytics workflows in industries such as telecom, finance, government, e-commerce, and healthcare. Create problems requiring Python programming, using libraries like Pandas, Numpy, Scipy, Scikit-learn, Statsmodels, Matplotlib, and Seaborn. Ensure challenges are computationally intensive, with solutions that would take significant manual effort. Develop scenarios involving complex data processing, statistical analysis, feature engineering, predictive modeling, and extracting insights. Write deterministic problems with reproducible outcomes by avoiding randomness or using fixed seeds. Base challenges on real business needs such as customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency. Design end-to-end data science tasks covering data ingestion, cleaning, exploratory analysis, modeling, validation, and deployment considerations. Include big data scenarios that require scalable computational solutions. Validate solutions in Python using standard data science libraries and statistical techniques. Document each problem clearly, provide realistic business context, and supply verified correct answers. Requirements Minimum 5 years of hands-on data science experience with demonstrated business impact. Portfolio of completed projects or publications showing practical problem-solving. Advanced Python programming for data science, including Pandas, Numpy, Scipy, Scikit-learn, and Statsmodels. Strong background in statistical analysis and machine learning, with knowledge of key algorithms and applications. Solid SQL skills for data manipulation and analysis. Familiarity with GenAI tools and concepts (LLMs, RAG, prompt engineering, vector databases). Understanding of MLOps and model deployment workflows. Experience with frameworks such as TensorFlow, PyTorch, and LangChain. Excellent written English (C1+ level). Application process Apply Pass qualifications Join a project Complete tasks Receive compensation This freelance, remote position is open to candidates based in Stuttgart, Baden-Württemberg, Germany, as well as those working remotely.

Join our team at Bosch Group as an intern at our cutting-edge ADAS (Advanced Driver Assistance Systems) Robot Testing Facility in Stuttgart. This internship provides an excellent opportunity for hands-on experience in the development and testing of innovative automotive technologies. You will work alongside industry experts, contributing to projects that enhance vehicle safety and automation.

Please submit your CV in English and indicate your level of English proficiency. toloka-ai, through Mindrift, offers project-based roles for specialists interested in AI system development and evaluation. This freelance position focuses on mathematics and Python, and is not a permanent role. Role overview As a Mathematics & Python Specialist - Freelance AI Trainer, each project centers on developing and validating computational mathematics problems. Tasks vary by project and may include: Designing original computational mathematics problems that reflect real research workflows Creating problems requiring Python programming solutions, often using libraries such as Numpy, SciPy, or Sympy Ensuring problems are computationally intensive, taking days or weeks to solve manually Formulating challenges involving complex reasoning in areas like number theory, combinatorics, graph theory, and numerical analysis Basing problems on real research scenarios or practical mathematical applications Verifying solutions in Python with standard mathematical libraries Documenting problem statements clearly and providing validated answers Requirements Degree in Mathematics (Pure or Applied) or a related field Proficiency in Python for numerical validation; experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, specialized libraries, Stata, or other programming languages is also valued At least 2 years of professional experience in applied mathematics, research, or teaching Background in numerical methods and symbolic computation Ability to create problems simulating real mathematical research workflows Familiarity with computational complexity theory Strong written English skills (C1+ level) Project workflow The process includes: Apply → Pass qualifications → Join a project → Complete tasks → Receive compensation. Time commitment Projects may require around 10–20 hours of work per week during active phases. Actual workload depends on project needs and is not guaranteed. Compensation Contributors can earn up to $45 per hour, depending on experience and pace. Compensation varies by project scope, complexity, and expertise required. Other projects on the platform may offer different rates based on their specific requirements.

Please submit your CV in English and indicate your English proficiency level. Mindrift offers freelance, project-based work connecting specialists with AI projects for leading technology companies. Most assignments focus on testing, evaluating, and improving AI systems. These roles are not permanent positions but provide flexible, remote opportunities for professionals seeking part-time engagement. Role overview This freelance AI Trainer position centers on materials science and Python programming. Contributors join projects that bring a range of technical challenges, often requiring a blend of engineering knowledge and computational problem-solving skills. Design original materials engineering problems that mirror real-world workflows Create Python programming challenges for engineering calculations and simulations Develop problems that require computational effort, such as numerical methods or iterative solutions Build scenarios in system design, optimization, and analysis Base challenges on real research or practical engineering applications Validate solutions in Python using standard engineering libraries Document problems clearly and supply verified, correct answers Requirements Degree in Material Science or a related field Proficiency in Python for numerical validation; experience with tools like MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or Stata is a plus Minimum two years of professional experience (applied, research, or teaching) Solid understanding of practical engineering constraints and approximations Excellent written English (C1 level or higher) Project workflow Application Qualification pass Project engagement Task completion Compensation Time commitment Active project phases typically require 10–20 hours per week. Actual workload varies based on project needs. Compensation Earnings can reach up to $45 per hour, depending on contribution and pace. Rates differ by project and reflect scope, complexity, and required expertise. Other Mindrift projects may offer different compensation structures. Location This is a remote contract role. Applicants based in Stuttgart, Baden-Württemberg, Germany are encouraged to apply, though the position is open to candidates in other locations as well.

Please submit your CV in English and indicate your level of English proficiency.Mindrift specializes in bridging the gap between skilled professionals and project-based opportunities in artificial intelligence for top technology firms. Our focus is on the testing, evaluation, and enhancement of AI systems. This is a project-based engagement, not permanent employment.What You Will DoEach project offers distinct challenges, and contributors may:Design innovative computational engineering scenarios that replicate actual engineering workflows;Create challenges that necessitate Python programming to address engineering calculations and simulations;Ensure that tasks are computationally demanding, requiring numerical techniques or iterative methods;Develop problems centered around system design, optimization, and analysis;Base challenges on realistic research dilemmas or practical engineering applications;Validate solutions using Python along with standardized engineering libraries;Thoroughly document problem statements and provide verified correct solutions.What We SeekThis role is ideal for engineers with Python experience interested in part-time, non-permanent projects. Preferred qualifications include:A degree in Electrical Engineering or a related discipline;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, or other programming languages is acceptable;A minimum of 2 years of professional experience, whether applied, research, or teaching;An understanding of practical engineering limitations and approximations;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 WorksApply → Pass qualifications → Join a project → Complete tasks → Get compensated.Project Time ExpectationsThe estimated commitment for this project is around 10–20 hours per week during active phases, based on project demands. This is an estimate, not a guaranteed workload, and only applies while the project is in progress.CompensationContributors can earn up to $50 per hour, depending on their expertise and contribution pace. Compensation variations exist across projects based on their scope, complexity, and needed skills. Note that other projects on our platform may present different earning opportunities based on specific requirements.

About the Role ebreuningergmbhco is looking for a Senior Full Stack Developer to help build and improve applications that support our business and customers. This position is based in Stuttgart. What You Will Do Develop and maintain both front-end and back-end features for web applications Work closely with team members to deliver user-friendly solutions Contribute to projects that improve user experience and support business goals What We Are Looking For Experience with both front-end and back-end development Ability to design and implement reliable, maintainable code Strong problem-solving skills and attention to detail This is a senior-level role for candidates who want to make an impact on application development at ebreuningergmbhco.

Please submit your CV in English and specify your English language proficiency. Mindrift offers project-based roles for professionals interested in supporting AI development at major technology companies. These freelance opportunities focus on testing, evaluating, and improving AI systems. Participation is temporary and does not constitute full-time employment. Role overview This freelance position centers on creating and validating computational chemistry problems that reflect real-world research tasks. Contributors design challenges that require Python programming, often using libraries such as NumPy, SciPy, or specialized chemistry packages. Problems should be computationally intensive, requiring more than manual calculation, and may involve areas like physical chemistry, quantum chemistry, or molecular modeling. Tasks also include documenting problem statements and providing accurate, verified solutions using established computational chemistry methods. Requirements Degree in Chemistry or a closely related discipline Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, NumPy, Pandas, SciPy, or similar tools is also welcome At least 2 years of professional experience in applied, research, or teaching roles Experience applying numerical methods in chemistry Understanding of computational chemistry concepts and practices Strong English writing skills at C1 level or higher Project workload Active project phases typically require around 10–20 hours per week. Actual workload may vary depending on the specific project and its requirements. This estimate applies only during active project periods and is not a guaranteed minimum or maximum. Compensation Earnings can reach up to $45 per hour, depending on expertise and pace. Compensation varies by project scope, complexity, and required qualifications. Other projects on the Mindrift platform may offer different rates based on their needs. Application process Submit your application Complete qualification steps Join a project Carry out assigned tasks Receive compensation

Company Overview: Terry Soot Management Group (TSMG) is a premier data collection enterprise established in 2017 across Europe. Our core expertise lies in gathering data where human observation remains indispensable, complementing automation. We operate globally, delivering precise data-driven insights through our adaptable teams across Europe, North America, and Asia.Role Overview: We are seeking a dedicated T1 Certified Autonomous Vehicle Test Operator to engage in the operation and assessment of autonomous vehicles in dynamic environments. This role encompasses real-time monitoring of vehicle performance, feedback reporting, and occasional manual driving tasks. Possessing a T1 certification is crucial, as it demonstrates knowledge of autonomous systems and adherence to safety protocols.