Principal Mechanical Design Engineer Are you ready to shape and lead mechanical design solutions across complex systems, influence projects from concept to in-service support, and take ownership of challenging work that can drive your career forward? Salary: £50-60k per annum Location: Stevenage (or Bristol) Working: Hybrid (3-4 days on site) Clearance: SC eligibility What you will need British nationality and SC clearance eligible • Significant experience in mechanical design and development • Ability to lead design work packages within multidisciplinary teams • Awareness of proving and qualification activities to meet requirements Key Responsibilities Leading the development of mechanical solutions across complex systems. Collaborating with multidisciplinary teams to deliver projects from concept to production. Applying robust design techniques such as DFMEA, DFA, and DFM. Engaging with suppliers and stakeholders to influence design outcomes. Supporting compliance, proving, and qualification activities. Contributing to structural, thermal, or dynamic analysis as needed. Your experience Degree, HND or HNC in Mechanical Engineering or equivalent. Extensive mechanical design experience in complex systems. Strong 3D CAD/CAE skills (training on preferred tools provided). Excellent written and verbal communication skills, able to influence effectively. Experience of...