Senior Mechanical Design Engineer Southampton - onsite, permanent, 4.5 day week £50-60k Benefits Relocation Package Ready to take technical ownership of complex, bespoke machinery? Join a highly specialised engineering team delivering advanced electro-mechanical systems across Medical, Industrial and Nuclear sectors. This is a hands-on leadership role where youll drive mechanical design from concept through manufacture, installation and commissioning. The Role Lead the mechanical design of complex industrial process equipment Own the CAD system (Solid Edge), standards and design release process Design bespoke machinery and integrated material handling systems Ensure correct integration of RF, high-voltage and electrical control systems Oversee documentation, compliance and design quality What Were Looking For Degree-qualified Mechanical Engineer (or equivalent experience) Proven experience designing bespoke industrial machinery or process equipment Strong 3D CAD skills (Solid Edge preferred; SolidWorks/Inventor/Creo welcome) Sheet metal, frames, enclosures and structural design expertise Experience integrating electrical systems with exposure to RF assemblies and high-voltage equipment (desirable) Knowledge of hydraulics, pneumatics, conveyors and drive systems such as servo/stepper motors (desirable) Strong grasp of DFM/DFA, tolerancing and manufacturing processes Understanding of CE / UKCA compliance (desirable) Youll be a natural problem-solver who thrives in a project-driven environment and is experienced acting as a technical lead or design authority. This is a rare opportunity to influence technical direction, product safety and long-term engineering capability while delivering challenging, high-value bespoke solutions.