Senior Product / Mechanical Engineer | Pitstone | 12-Month Contract Rate: £60 per hour Umbrella (inside IR35) Start Date: January/February 2026 Location: Pitstone, UK (fully on-site initially; likely 2 days remote once settled) Contract Length: 12 months Security Clearance: Baseline required Role Overview: We are seeking a Senior Product Engineer to join a dynamic aerospace engineering team, supporting R&D and R&T programmes in smart motor and power generation technologies. This hands-on role involves developing robust mechanical design solutions, leading work-packages, and supporting a team of engineers to deliver technically sound, cost-effective results. Key Responsibilities: Lead and deliver engineering work-packages, ensuring designs meet cost, weight, and manufacturing targets Supervise and support other engineers with design oversight and approvals Produce and maintain CAD models, drawings, and Bills of Materials Generate and review design assurance documentation and calculations Support R&D/R&T projects with investigations and Root Cause Analysis Mentor and guide junior engineers Requirements: Mechanical, Automotive, or Aeronautical Engineering degree (or equivalent experience) Proven experience delivering engineering work-packages and supervising engineers Mechanical design experience with rotating equipment (shafts, bearings, seals, structures) Proficiency in 3D CAD software (CATIA, NX, or equivalent) and MS Office Excellent communication and teamwork skills Self-motivated, able to work independently and manage time effectively Baseline security clearance required Desirable: Experience with high-speed power generation or motor technologies Familiarity with PLM tools (Teamcentre, Windchill, SAP) Understanding of mechatronics/electronics Experience managing external engineering service suppliers