Principle Mechanical Design Engineer SALARY – UP TO £60,000 LOCATION – STEVENAGE What we can offer you: Company Bonus : Up to £2,500 (variable based on company performance each year). Pension : Maximum combined contribution (employer and employee) of up to 14%. Overtime : Opportunities for paid overtime. Facilities : Outstanding site facilities including subsidised meals, free car parking, and more. Training and Development : Excellent opportunities for career progression, training, and development. The role: We are seeking experienced Principal Mechanical Design Engineers to contribute across all stages of the product lifecycle, from future mechanical concepts and detailed design to qualification, production, and in-service support. In this role, you will lead the development of advanced mechanical solutions for complex weapons and weapon systems, collaborating closely with cross-functional teams to ensure seamless integration and high-quality outcomes. This position offers excellent opportunities for career growth and skill development in a dynamic and innovative environment. What we want from you: Degree, HND, or HNC qualified with experience in mechanical design and development in areas such as mechanisms, structures, assembly and integration, and concept selection and development. Ability to lead mechanical design work packages. Experience working within multi-disciplinary teams, with an understanding of related challenges. Familiarity with proving and qualification activities to ensure compliance with requirements. Robust design experience across the product lifecycle (CADMID). Relevant 3D CAD/CAE experience (training on preferred CAE tools will be provided). For Security Clearance reasons to work this role you must have British citizenship or be a dual national with British citizenship This role is perfect If you're interested in working with one of the leading names in the defence industry, click "Apply Now