Job Title: Principal Mechanical Design Engineer Salary: Competitive, dependent on experience Location: Stevenage Hybrid Working: Typically 2-3 days per week on-site to meet programme needs Security Requirements: Applicants must be a British Citizen or a dual national including British citizenship. Nationality and right-to-work restrictions may apply. Successful candidates will need to obtain BPSS security clearance as part of the onboarding process. What we offer Annual bonus: Up to £2,500, based on company performance Pension: Up to 14% combined employer/employee contribution Overtime: Paid overtime opportunities available Flexible leave: Up to 15 additional flexi days per year Flexible working options: Open to applicants seeking adaptable working patterns About the role With an expanding project pipeline, we are seeking Principal Mechanical Design Engineers to contribute across all stages of the product lifecycle-from early conceptual studies and detailed design through to qualification, production support and in-service engineering. You will play a key role in leading mechanical design solutions for a variety of complex defence products, working closely with multidisciplinary engineering teams. This role also offers strong potential for future career development and progression. What we're looking for Qualification to Degree/HND/HNC level in a relevant discipline, along with substantial me...