MERITUS are recruiting for a Senior Mechanical Design Engineer to join our client in the aerospace industry in a permanent position to work on exciting new projects.SENIOR MECHANICAL DESIGN ENGINEER - PERMANENT - UP TO 50,000 PER ANNUM - 2 STAGE INTERVIEW PROCESS - NORTH WALESSenior mechanical engineer responsible for the design, optimisation and certification of specialist mobile equipment used in defence environments. The role covers the full product lifecycle from concept and simulation through prototype, testing and production.Key ResponsibilitiesDesign and DevelopmentLead mechanical system design for specialist mobile machinery.Produce 3D CAD models and engineering drawings.Integrate hydraulic systems into mechanical designs.Perform FEA, stress analysis and simulation-led design.Support prototype builds, testing and troubleshooting.Work with electrical, manufacturing and quality teams to ensure manufacturable designs.Compliance and DocumentationEnsure compliance with UK/EU regulations (CE, UKCA).Produce technical files, risk assessments and conformity documentation.Support customer inspections, acceptance testing and audits.Maintain defence-standard traceability and technical documentation.Optimisation and RiskImprove performance, weight and durability through design optimisation.Conduct materials selection and simulation validation.Lead FMEA / DFMEA / PFMEA and implement risk mitigation across the design lifecycle.Environment Cross-functional role working with engineeri