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Senior Python Systems Developer for Functional Testing Projects

Toloka AI

Contract|$30/hr - $30/hr|Remote|Remote — Austria

Please submit your CV in English and specify your English proficiency level. Mindrift, powered by Toloka AI, connects skilled professionals with project-based roles in AI. These projects focus on testing, evaluating, and improving AI systems for leading technology companies. This is a project-based contract, not a permanent position. Role overview This Senio…

Apr 24, 2026

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Senior Python Developer - Code Migration Expert

toloka-ai

Contract|$50/hr - $50/hr|Remote|Remote — Austria

Please submit your CV in English and specify your English proficiency level. Mindrift, powered by toloka-ai, matches experienced professionals with contract-based AI projects for top technology companies. All positions are freelance and not permanent employment. Role overview This Senior Python Developer role centers on code migration and functional testing. The work involves interpreting and translating code between languages such as C, Rust, and Go, often using large language models (LLMs) like Roo Code or Claude Code for support. The position is fully remote and available to candidates based in Austria. What you will do Develop functional black box tests for large codebases written in multiple languages Set up and maintain Docker environments to ensure reproducible builds and test runs across platforms Track code coverage and implement automated scoring metrics that meet industry standards Utilize LLMs (such as Roo Code and Claude) to accelerate development, automate repetitive tasks, and enhance code quality Requirements 5+ years of software engineering experience with a strong focus on Python Expertise in pytest, including fixtures, session-scoped tests, and timeouts, as well as designing black-box functional tests for CLI tools Advanced skills with Docker (writing reproducible Dockerfiles, managing user contexts, maintaining secure workspaces) Strong knowledge of Linux and Bash scripting, with experience debugging inside containers Familiarity with modern Python tooling (uv, pyproject.toml, packaging) Ability to read and understand code in C, C++, Rust, and Go, with support from LLMs Experience using LLMs (Claude Code, Roo Code, Cursor) to speed up development and generate test cases English proficiency at B2 level or higher Preferred qualifications Experience with agent evaluation platforms or 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 engagement details Freelance, project-based work through the Mindrift platform (Toloka AI) Fully remote role with flexible scheduling; set your own availability (20-30 hours per week) Compensation varies by project and expertise. For this project, AI trainers may earn up to $50 per hour.

Apr 24, 2026

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Senior Full-Stack Engineer (Python & React)

jobgether

Full-time|On-site|Austria

jobgether is looking for a Senior Full-Stack Engineer with strong skills in Python and React. This position is based in Austria. Role overview This role centers on building and maintaining full-stack applications. The Senior Full-Stack Engineer will work across both front-end and back-end systems, using Python and React to deliver reliable and user-friendly solutions. Collaboration Working closely with cross-functional teams, you will help ensure that applications provide a seamless experience for users. Communication and teamwork are key as you contribute to project success from design through deployment. Requirements Professional experience with Python and React Ability to design, develop, and maintain full-stack applications Comfort working with both front-end and back-end technologies Strong collaboration skills

Apr 29, 2026

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Profitability Systems Project Manager (Transformation)

Red Bull GmbH

Full-time|On-site|Elsbethen

Join Red Bull as a Profitability Systems Project Manager and drive key transformation initiatives that enhance our profitability systems. In this role, you will lead cross-functional teams, ensuring the successful implementation of strategic projects that optimize our financial performance.

Apr 10, 2026

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Senior PEGA System Architect

Qualysoft

Contract|On-site|Wien

Join our dynamic team at Qualysoft as we embark on a large-scale IT initiative within the public sector. We are on the lookout for a highly skilled Senior System Architect with a proven track record in system engineering.In your role as Lead System Engineer, you will spearhead the planning, implementation, and management of intricate system landscapes. You will serve as the crucial technical link between architecture, development, and operations, ensuring that our systems maintain exceptional performance, stability, and security.Your responsibilities will encompass both strategic architectural decisions and operational execution, driving the successful delivery of essential systems, integrations, and migrations.

Aug 12, 2025

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Internship - Development/Test Field (m/f/d)

Bosch Group

Internship|On-site|Linz

Bosch Group in Linz offers an internship focused on development and testing. This position provides hands-on experience with real projects and the opportunity to collaborate with seasoned professionals. Role overview Assist with ongoing development and testing tasks Work alongside engineers and subject matter experts Learn about various development processes and testing techniques Take part in project work and support daily operations Location This internship is based in Linz.

Apr 21, 2026

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Computer Science Specialist with Python Expertise - AI Initiatives at Mindrift

Toloka AI

Full-time|Remote|Remote — Austria

Toloka AI seeks a Computer Science Specialist with advanced Python skills to join the Mindrift team. This remote role is open to candidates based in Austria. The group develops practical AI solutions aimed at solving real-world problems. Role overview This position centers on designing and building AI-driven projects. Collaboration with subject matter experts is a key part of the work, ensuring that each project addresses tangible challenges across different fields. What you will do Partner with experts to plan and develop AI projects Use Python to build, improve, and maintain AI models and supporting tools Help create solutions that tackle real issues in a variety of domains Requirements Solid foundation in computer science principles Extensive hands-on experience with Python Genuine interest in artificial intelligence and its practical uses Ability to work effectively in a remote, distributed team

Apr 25, 2026

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Freelance AI Trainer - Material Scientist with Python Expertise

Mindrift

Part-time|$45/hr - $45/hr|Remote|Remote — Austria

Please submit your CV in English and indicate your level of English proficiency.Mindrift is a dynamic platform connecting skilled professionals with project-based AI opportunities in leading tech companies. We focus on testing, evaluating, and enhancing AI systems, providing contributors a chance to work on innovative projects without the commitment of permanent employment.Opportunity OverviewEach project presents unique challenges, and contributors may be involved in the following:Creating original materials that simulate real-world engineering workflows;Developing engineering problems that require Python programming for calculations and simulations;Ensuring the problems are computationally intensive, necessitating numerical methods or iterative solutions;Designing problems related to system design, optimization, and analysis;Grounding problems in actual research challenges or practical engineering applications;Validating solutions through Python using standard engineering libraries;Clearly documenting problem statements and providing verified solutions.QualificationsWe are seeking material scientists and engineers with Python experience who are interested in part-time, project-based roles. Ideal candidates will possess:A degree in Material Science or a related discipline;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other programming languages is acceptable;At least 2 years of professional experience, including applied, research, or teaching roles;A strong grasp of practical engineering constraints and approximations;Excellent written English skills (C1+ level).Application ProcessApply → Pass qualification(s) → Join a project → Complete assigned tasks → Receive compensation.Project CommitmentTasks for this project are estimated to require approximately 10-20 hours per week during active phases, depending on project demands. This estimate is not a guaranteed workload and applies only while the project is active.CompensationContributors can earn up to $45 per hour, depending on their level of expertise and contribution speed. Please note that compensation may vary across different projects based on scope, complexity, and required skills.

May 2, 2026

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Senior DevOps Systems Engineer

Pineapple

Full-time|From €63K/yr|Hybrid|Wien, Wien, Österreich

Join our client, a leading Austrian family-owned company and a pioneer in its industry. We are looking to strengthen the team with a skilled (Senior) Systems Engineer specializing in DevOps (m/w/x).Your ResponsibilitiesManage and enhance the DevOps platformEnsure stable operations and conduct error analysisAssist development teams with CI/CD and platform utilizationOptimize processes, tools, and architectureEmphasize automation, scalability, and efficiency

Mar 31, 2026

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Freelance Electrical Engineer & Python Specialist - AI Training

Mindrift

Part-time|$50/hr - $50/hr|Remote|Remote — Austria

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects talented professionals with project-based AI opportunities for leading technology companies, focusing on the testing, evaluation, and enhancement of AI systems. This is a project-based engagement, not a permanent position.Opportunity OverviewEach project presents distinct challenges, and contributors may be involved in the following:Design innovative computational engineering problems that mirror real-world engineering workflows;Develop problems that require Python programming for engineering calculations and simulations;Ensure tasks are computationally intensive, demanding numerical methods or iterative solutions;Formulate problems centered on system design, optimization, and analysis;Base challenges on authentic research issues or applicable scenarios from engineering practices;Validate solutions using Python along with standard engineering libraries;Clearly document problem statements and provide verified correct answers.Qualifications We SeekThis role is ideal for engineers proficient in Python and looking for part-time, project-based work. The preferred candidates will possess:A degree in Electrical Engineering or a related field;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any programming language can be considered equivalent;A minimum of 2 years of professional experience, including applied, research, or teaching backgrounds;A solid understanding of practical engineering constraints and approximations;Strong written English skills (C1+ or equivalent);Professional certifications (e.g., CMME, SAS Certifications, CAP) and experience in international or applied projects are highly advantageous.How to ParticipateApply → Pass qualifications → Join a project → Complete assigned tasks → Receive paymentProject Time CommitmentFor this opportunity, tasks are estimated to require approximately 10–20 hours per week during active project phases. Please note that this is an estimate and does not guarantee a specific workload.CompensationParticipants can earn up to $50 per hour, depending on their expertise and contribution pace. Compensation may vary across projects based on scope, complexity, and required skills. Please be aware that other projects on the platform may offer different earning levels based on their specific requirements.

Apr 30, 2026

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Specialist in Strategy Development and Project Management

REWE International Dienstleistungsgesellschaft mbH

Full-time|On-site|Wiener Neudorf

Join our dynamic team at REWE International Dienstleistungsgesellschaft mbH as a Specialist in Strategy Development and Project Management. In this pivotal role, you will lead and implement strategic initiatives that drive growth and efficiency within our organization. Your expertise will help shape the future of our projects, ensuring alignment with our business goals.We are looking for innovative thinkers who thrive in a collaborative environment and are passionate about making an impact. If you are ready to take the next step in your career and contribute to exciting projects that matter, we want to hear from you!

Apr 8, 2026

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Mechanical Engineer & Python Expert - Freelance AI Trainer

Mindrift

Contract|$50/hr - $50/hr|Remote|Remote — Austria

We invite you to submit your CV in English, highlighting your level of English proficiency.Mindrift connects talented specialists with project-based AI opportunities in collaboration with leading technology companies, focusing on the testing, evaluation, and enhancement of AI systems. Please note that this is a project-based engagement, not a permanent position.Opportunity OverviewEach project presents unique tasks; contributors may:Design innovative computational engineering problems that replicate real-world engineering workflows;Develop problems that necessitate Python programming for solving engineering computations and simulations;Ensure that problems are computationally demanding, requiring numerical methods or iterative solutions;Create scenarios involving system design, optimization, and analysis;Base challenges on genuine research issues or practical applications derived from engineering practice;Validate solutions using Python with standard engineering libraries;Clearly document problem statements and provide verified correct solutions.Desired QualificationsThis role is an excellent match for engineers experienced in Python who are open to part-time, non-permanent projects. Ideal candidates will possess:A degree in Mechanical Engineering or a related discipline;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or any programming language may also be acceptable;A minimum of 2 years of professional experience, including applied, research, or teaching experience;An understanding of practical engineering constraints 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.Application ProcessSteps to join:ApplyPass qualification(s)Join a projectComplete tasksReceive paymentProject Time CommitmentFor this role, tasks are expected to require approximately 10–20 hours per week during active phases, depending on project needs. This is an estimated workload applicable only during project activity.CompensationContributors can earn up to $50 per hour, depending on their expertise and contribution pace. Compensation may vary across projects based on scope, complexity, and required expertise. Please note that other projects on our platform may offer varying earning levels according to their demands.

May 1, 2026

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Freelance AI Trainer - Research Physicist with Python Expertise

Mindrift

Part-time|$45/hr - $45/hr|Remote|Remote — Austria

We invite you to submit your CV in English, including your English proficiency level.Mindrift specializes in connecting talented professionals with project-based AI opportunities from leading tech organizations. Our focus is on the testing, evaluation, and enhancement of AI systems. Please note that this is a project-based opportunity, not permanent employment.Key Responsibilities:Design innovative computational physics problems that emulate authentic physics research workflows.Develop challenges that require Python programming for resolution (utilizing Numpy, SciPy, Sympy).Ensure problems are computationally intensive, taking days or weeks to solve manually.Create problems that necessitate complex reasoning across mechanics, electromagnetism, thermodynamics, and quantum mechanics.Formulate problems based on real-world research challenges or practical applications in the field of physics.Validate solutions through Python using standard physics simulation libraries.Clearly document problem statements and provide verified correct answers.Qualifications:This role is ideal for physicists with Python experience who are looking for part-time, non-permanent projects. The preferred candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a closely related field.Proficiency in Python for numerical validation (knowledge of MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or other domain-specific libraries is acceptable).A minimum of 2 years of professional experience in applied physics, research, or teaching.Experience with numerical simulation methods.Ability to craft problems that reflect genuine physics research workflows.Creative problem-solving skills across diverse areas of physics.Familiarity with physics modeling and approximation techniques.Strong written English skills (C1 or higher).Application Process:Apply → Pass qualification(s) → Join a project → Complete tasks → Get compensated.Project Expectations:For this project, tasks are anticipated to require approximately 10–20 hours per week during active phases, contingent upon project demands. This estimate is not a guarantee of workload and only applies while the project is ongoing.Compensation:Contributors can earn up to $45 per hour, depending on their level of expertise and contribution pace. Compensation varies across projects based on scope, complexity, and required expertise. Be aware that other projects on the platform may offer different pay scales based on their specific requirements.

Apr 30, 2026

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Test Manager (m/w/d)

qualysoft

Contract|On-site|Wien

In the context of our innovative project, we are seeking a skilled Test Manager to oversee the development and testing of a sophisticated software platform designed for industrial automation. The primary focus will be on ensuring robust and scalable backend, web, and mobile components. You will play a critical role in test management, automation, and quality assurance, all while employing agile methodologies to enhance project outcomes.

Jan 27, 2026

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Senior Java Developer

usm2

Full-time|On-site|Vienna

Join usm2 as a Senior Java Developer and take the next step in your career. In this role, you will leverage your extensive experience in Java development to design and implement robust applications that meet the needs of our clients. Collaborate with cross-functional teams to deliver high-quality software solutions and contribute to the continuous improvement of our development processes.

Aug 31, 2016

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Freelance Optical Engineer with Python Expertise

Mindrift

Part-time|$45/hr - $45/hr|Remote|Remote — Austria

We invite you to submit your CV in English and specify your level of English proficiency.Mindrift connects talented professionals with project-based AI opportunities at leading tech firms, focusing on the testing, evaluation, and enhancement of AI systems. Please note that participation is project-based and does not constitute permanent employment.Opportunity OverviewEach project presents distinct tasks, and contributors may be involved in:Creating original computational physics challenges that replicate real-world physics research processes;Formulating problems that necessitate Python programming solutions (utilizing libraries such as Numpy, SciPy, Sympy);Ensuring that tasks are computationally demanding and cannot be resolved manually within practical timeframes (days/weeks);Designing challenges that involve complex reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Developing problems based on authentic research issues or practical applications in the field of physics;Validating solutions with Python using standard physics simulation libraries;Clearly documenting problem statements and providing verified correct answers.Candidate ProfileThis role is ideal for optical engineers experienced in Python who are open to part-time, non-permanent project work. The ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a related discipline;Proficiency in Python for numerical validation. Familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, domain-specific libraries, Stata, or knowledge of any programming language is acceptable;A minimum of 2 years of professional experience: applicable experience may include applied, research, or teaching roles;Experience with numerical simulation techniques;The ability to create problems that reflect genuine physics research workflows;Creative problem-solving skills across various physics domains;Familiarity with physics modeling and approximation strategies;Strong written English proficiency (C1+).Application ProcessSteps to participate: Apply → Pass qualifications → Join a project → Complete tasks → Receive payment.Project Time CommitmentDuring active phases, project tasks are expected to require approximately 10–20 hours per week, depending on project specifics. This is an estimate and not a guaranteed workload for the project duration.CompensationContributors can earn up to $45 per hour, contingent on their expertise and contribution pace. Compensation rates may vary across different projects based on scope, complexity, and required skills. Please note that other projects on the platform may present different earning potentials based on their specific requirements.

Apr 30, 2026

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Senior Digital Project Manager (m/w/d)

deintraumjobwartet

Full-time|From €56K/yr|Hybrid|Salzburg, Salzburg, Österreich

Bist du bereit, nicht nur Projekte zu leiten, sondern digitale Lösungen aktiv zu gestalten? Denkst du strategisch und handelst operativ, während du die Verantwortung vom ersten Konzept bis zum erfolgreichen Launch übernimmst? Dann könnte diese spannende Herausforderung genau das Richtige für dich sein.Unser Kunde, eine innovative Digitalagentur mit Standorten in Salzburg und Wien, entwickelt kreative digitale Produkte für namhafte Kunden aus verschiedenen Branchen.In der Rolle des Senior Digital Project Managers übernimmst du eine Schlüsselposition bei der Umsetzung anspruchsvoller Digitalprojekte in Bereichen wie Webseiten, eCommerce, Portale, digitale Produkte, Apps und Progressive Web Apps (PWA).

Mar 26, 2026

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Freelance AI Trainer - Physics Specialist with Python Expertise

Mindrift

Contract|$45/hr - $45/hr|Remote|Remote — Austria

We invite you to submit your CV in English, clearly indicating your level of English proficiency.At Mindrift, we specialize in connecting talented professionals with innovative, project-based AI opportunities for leading technology companies. Our focus is on testing, evaluating, and enhancing AI systems across various domains. Please note that participation in our projects is temporary and not a permanent employment opportunity.Opportunity OverviewWhile each project presents its own unique challenges, contributors can expect to:Design original computational physics problems that reflect authentic physics research workflows;Create challenges requiring advanced Python programming skills (including Numpy, SciPy, and Sympy) to find solutions;Ensure that problems are computationally demanding and cannot be resolved manually within practical timeframes (days or weeks);Develop scenarios necessitating intricate reasoning within mechanics, electromagnetism, thermodynamics, and quantum mechanics;Base problems on genuine research hurdles or practical applications in the field of physics;Validate solutions utilizing Python with standard physics simulation libraries;Clearly document problem statements and provide verified correct answers.Ideal Candidate ProfileThis role is well-suited for physicists experienced in Python who are open to part-time, non-permanent projects. The ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a related field;Proficiency in Python for numerical validation, with familiarity in MATLAB, R, C, SQL, Numpy, Pandas, SciPy, and/or other programming languages considered equivalent;A minimum of 2 years of professional experience, encompassing applied physics, research, or teaching roles;Experience with numerical simulation methods;The capability to design problems that accurately mirror real physics research workflows;Creative problem-solving skills across various areas of physics;Familiarity with physics modeling and approximation techniques;Strong written English skills (C1 level or above).Application ProcessApply → Pass qualifications → Join a project → Complete tasks and get compensated.Project Time CommitmentFor this project, tasks are estimated to require approximately 10–20 hours per week during active phases, depending on project requirements. This is just an estimate and does not guarantee a specific workload.CompensationContributors can earn up to $45 per hour, depending on their level of expertise and contribution pace. Please note that compensation may vary across projects based on their complexity and requirements.

Apr 30, 2026

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Senior Unity Developer - Poker

jobgether

Full-time|On-site|Austria

jobgether is looking for a Senior Unity Developer with a focus on Poker game development. This position is based in Austria and calls for someone with deep experience in building engaging gaming experiences using Unity. What you will do Design and implement polished game features in Unity, with an emphasis on Poker gameplay. Work closely with cross-functional teams to define, design, and release new features. Optimize performance to deliver smooth, responsive play for users. Debug and resolve technical issues quickly to maintain a high-quality experience. Keep up with industry trends and new technologies to improve our games. Who we’re looking for This role requires strong Unity development skills and hands-on experience with Poker or similar card games. Collaboration and a drive to deliver top-tier player experiences are essential.

Apr 29, 2026

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Senior Technical Project Manager at TetraScience | Vienna, Austria

TetraScience

Full-time|On-site|Vienna, Vienna, Austria

About UsTetraScience is at the forefront of the Scientific Data and AI revolution, pioneering the creation and industrialization of AI-native scientific datasets. Our innovative lab data management solutions are designed to transform scientific use cases into tangible AI-enabled outcomes.As a leader in this burgeoning market, TetraScience has garnered unrivaled attention from the world’s leading compute, cloud, data, and AI infrastructure companies. Our partnerships with these industry giants reinforce our status as the go-to standard for scientific data management solutions.As part of your application process, we invite you to explore the Tetra Way letter penned by our co-founder and CEO, Patrick Grady. This document is essential for understanding our core values and the ethos that drives our team. We encourage you to reflect on its insights to determine if TetraScience aligns with your personal and professional beliefs.Embracing the principles outlined in this letter is vital for anyone joining our team, as we expect every team member to embody these ideals daily.Your RoleWe are in search of an exceptional Senior Technical Project Manager to spearhead a prominent account in Vienna, Austria. In this pivotal role, you will instill a sense of urgency and focus within both TetraScience and our customer partner, driving a groundbreaking program aimed at productizing scientific data and use cases.As a customer-centric leader, you possess the foresight to anticipate challenges, adeptly navigate organizational complexities, and ensure that delivery timelines are consistently met. You thrive in dynamic environments, excelling at aligning strategic priorities with operational execution.With a strong sense of extreme ownership, you take full responsibility for project outcomes, swiftly removing obstacles and escalating risks to maintain momentum. Your proven track record includes delivering intricate, multi-stakeholder projects on time and with quantifiable results.This role is not defined by a traditional playbook. We are actively engaged in category creation and industry advocacy, where success relies on unwavering discipline, resilience, and determination. If you are passionate about redefining the life sciences landscape through innovation and collaboration, we invite you to lead this mission-critical initiative with us.

Aug 25, 2025

Senior Python Developer - Code Migration Expert

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