Senior Mechanical Engineer (f/m/d)

eleQtron develops and operates full-stack quantum computers based on trapped-ion technology. Quantum computing is a new computing paradigm rapidly approaching commercial viability. Our unique approach combines laser-cooled trapped ions with microwave control and tailored magnetic fields. Our next-generation computing machines under development will be able to find solutions to problems that are out of reach today, thus enabling new innovative products and services for a brighter future. About the Role: We are looking for a highly experienced and technically strong Senior Mechanical Engineer (f/m/d) who can take ownership of complex mechanical designs from concept through detailed engineering, manufacturing, assembly, and validation. This is a hands-on engineering role for someone with strong mechanical engineering fundamentals, extensive practical design experience, and advanced SolidWorks capabilities. Responsibilities: Take technical ownership of complex mechanical components, assemblies, and subsystems from concept through manufacturing, assembly, and validation Develop robust mechanical designs for high-precision scientific and industrial equipment Create and maintain high-quality SolidWorks parts, assemblies, manufacturing drawings, BOMs, and technical documentation Perform tolerance analysis and define appropriate fits, interfaces, geometric tolerances, and dimensional requirements Translate system-level requirements into clear mechanical requirements, interfaces, and manufacturable design solutions Define manufacturing requirements and work closely with suppliers and Procurement on manufacturability, materials, tolerances, and quality Develop, test, and improve prototypes and actively contribute to design reviews and technical decision-making Required skills: BSc or MSc degree in Mechanical Engineering, Mechatronics, Precision Engineering, or a closely related discipline Minimum 8 years of professional mechanical engineering experience Advanced professional proficiency in SolidWorks is mandatory Demonstrable experience designing complex mechanical assemblies, bespoke machinery, or technically demanding systems Strong mechanical engineering fundamentals, including manufacturing methods, materials, tolerance analysis, GD&T, DfM/DfA, structural design, and mechanical interface Strong ownership of mechanical designs and technical decisions We value: CSWP – Certified SOLIDWORKS Professional certification Experience in industries such as scientific instrumentation, semiconductor equipment, aerospace, precision engineering, special-purpose machinery, optics, or similar fields Experience with high-precision systems and/or exposure to vacuum, cryogenic, thermal, optical, or vibration-sensitive applications Excellent engineering judgment and the ability to identify and improve weak or risky design solutions Practical understanding of how components are manufactured, assembled, tested, and serviced What you can expect from eleQtron: Competitive s