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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Engineer R&D System Test - **Company:** HIMA Paul Hildebrandt GmbH - **Location:** Brühl, Germany - **Salary:** €72,500.0 - €102,000.0 - **Contract:** Permanent contract - **Skills:** Automation of Tests, Communications Protocols, Computer Programming, Computer Engineering, Continuous Delivery, Continuous Integration, Ethernet, Python (Programming Language), Modbus, Software Engineering, Subversion, System Testing, Test Management, Strategies of Testing, Test Scripts, Git, Integration Tests, Polarion, Software Version Control - **Published:** September 12, 2026 - **Apply:** https://www.xing.com/jobs/bruehl-principal-engineer-system-test-157788187 ## About the Role * A degree in Electrical Engineering, Computer Engineering or a comparable qualification. * In-depth experience in software design, testing methods and programming skills, ideally in Python and/or Robot Framework. * Knowledge of relevant functional safety standards (e.g. IEC 61508) and security standards (e.g. IEC 62443-4-X). * Experience in working with safety PLCs and knowledge of industrial communication protocols such as Profinet, Ethernet/IP, Modbus, etc. * A strong focus on quality and a systematic, analytical approach. * Experience in working with test management tools and version control systems (e.g. Polarion, SVN, Git, or similar tools). * Knowledge of test automation, including the development of test scripts for Continuous Integration/Continuous Deployment (CI/CD) environments. * Experience in carrying out system and integration tests, ideally in the field of safety or embedded systems. * Understanding of hardware-level testing and interfaces between software and hardware. * Ability to work in interdisciplinary teams and to communicate technical content clearly and precisely. * A structured and independent approach to work, with a focus on meeting deadlines and achieving objectives. * Good written and spoken German and English. ## Description * Requirements and test management: Reviewing requirements and developing corresponding test cases. * Planning, designing, documenting and implementing software and system tests. * Coordinating and carrying out system and integration tests. * Developing and maintaining test environments and the associated test infrastructure. * Contributing to the development of new functions and creating the associated test models. * Automating tests, including the development of automated test scripts and tools. * Evaluation and selection of suitable tools and technologies for testing Safety PLCs. * Supporting the continuous improvement of test strategies, test methods and processes. * Ensuring and implementing quality requirements in accordance with internal and external standards. * Ensuring the traceability of requirements through to test cases and test results. * Reviewing and evaluating test results, including reporting and documentation. * Carrying out qualitative fault analyses and assisting with root-cause analyses. * Working closely with the development teams to seamlessly integrate testing into the development process. ## Related Videos - [Optimizing Land-Based Fish Feeding with Node-RED](https://www.wearedevelopers.com/videos/2032-optimizing-land-based-fish-feeding-with-node-red) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Enabling intelligent logistics automation: home-grown Industrial IoT platform at Austrian Post](https://www.wearedevelopers.com/videos/2018-enabling-intelligent-logistics-automation-home-grown-industrial-iot-platform-at-austrian-post) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Code to Road in < 12 hours](https://www.wearedevelopers.com/videos/1082-code-to-road-in-12-hours) ## Related Articles - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Best Coding Boot Camps in Germany](https://www.wearedevelopers.com/magazine/237-best-coding-boot-camps-in-germany) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany) - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023)