Senior Quality Assurance Engineer (m/f/x)

oin an internationally growing deep-tech company that is shaping one of the most advanced technology fields of the coming decade. Our client develops highly sophisticated control and software platforms used by leading research institutions, high-performance laboratories, and innovative industrial players worldwide. Operating at the intersection of software engineering, hardware integration, and cutting-edge scientific applications, the company creates technology that enables highly complex experimental systems to perform reliably at the highest level. The environment combines startup agility with scientific excellence and international reach — offering engineers the opportunity to work on products that are both technically demanding and globally relevant. For the expanding engineering team in the Stuttgart region, we are currently looking for an experienced Senior Quality Assurance Engineer (m/f/x) who is passionate about building robust quality processes in highly complex software environments. Tasks Drive quality assurance across sophisticated software products used in demanding high-performance environments Design, implement, and continuously improve automated test frameworks for APIs, backend services, and distributed software components Develop and execute comprehensive testing strategies across unit, integration, system, and end-to-end levels Analyze complex software behavior and identify root causes in close collaboration with software and system engineers Validate software reliability in virtualized and hardware-related environments Ensure stable and reproducible test infrastructures for complex development workflows Contribute actively to quality standards, release readiness, and continuous improvement processes Work closely with interdisciplinary engineering teams across software, systems, and product development Support the transition from reactive testing toward proactive quality engineering Requirements Several years of experience in Software Quality Assurance , Test Automation , or Quality Engineering Strong hands-on expertise in Python for test development and automation Deep understanding of modern testing methodologies across multiple test layers Solid experience working in Linux-based environments Familiarity with virtualization technologies and complex system setups Experience testing service-oriented architectures and communication interfaces such as REST or gRPC Knowledge of configuration and automation tools is highly beneficial Additional exposure to programming languages such as Go or Kotlin is a plus Strong analytical mindset with a structured and solution-oriented working style Comfortable operating in technically challenging environments with evolving requirements Fluent English communication skills Benefits A highly innovative engineering environment with real technological depth Direct contribution to products used in globally leading scientific and industrial projects High degree of ownership and influence on product quality and engineering standards International collaboration with top-tier technical experts Hybrid working model with flexibility and modern work culture Fast decision-making processes and visible impact of your work Exposure to one of today’s most exciting high-tech growth sectors Long-term development opportunities in an international deep-tech organization Find more English Speaking Jobs in Germany on Arbeitnow