Position: Fuel system engineer Location: Lucerne, Switzerland Contract: Permanent contract, full-time position Salary: It will be discussed during the recruiting process, taking into consideration seniority and responsibilities within the activity. AYES is a Switzerland-based Engineering and Technology company headquartered in Baden. Our core business operates across several industrial sectors, including Automotive, Aerospace, Railway, Energy, and Life Sciences. With a strong focus on innovation and engineering excellence, AYES supports clients across Switzerland, Europe, and the United States, delivering advanced R&D and technology solutions. At AYES, people are at the center of everything we do. We believe that knowledge sharing, collaboration, and talent development are key drivers of sustainable growth and technological progress Key Responsibilities Define and manage fuel system requirements, architecture, and interfaces throughout the full development lifecycle Support fuel system development, integration, verification, validation, and testing activities in accordance with the V-Cycle process Prepare, execute, and document fuel system qualification and certification testing, including DO-160 environmental testing Coordinate technical activities with suppliers, ensuring compliance with program requirements and timely issue resolution Support certification activities and interface with certification authorities and internal airworthiness teams Our Ideal Candidate Should Have Degree in Aerospace Engineering, Mechanical Engineering, or a related discipline Minimum 7 years of experience in system engineering for aircraft fuel systems (ATA 28) Strong experience in requirements management, system development, integration, verification and validation (V&V), and testing Experience in supplier management, certification processes, and interaction with certification authorities Good knowledge of aerospace development standards and processes, including DO-160 Fluent English is required If you are motivated by structured engineering environments, digital process optimization, and working on complex aerospace systems, and you want to join a dynamic international engineering company with projects across Europe and the USA, then…SAY YES AND GROW WITH AYES!