Senior Mechanical Design Engineer Building Services

Job Title: Senior Mechanical Design Engineer Location: North Wales Salary: £50,000 Job Description We are seeking a highly experienced Senior Mechanical Design Engineer to join a specialist engineering organisation developing advanced mobile machinery and defence-sector mobility systems. Job Responsibilities • Lead the design and development of mechanical systems • Integrate hydraulic systems into mechanical designs • Produce 3D models and detailed drawings using PTC Creo • Conduct FEA, stress analysis, and simulation-led design validation • Collaborate with electrical, controls, manufacturing, and quality teams on integrated systems • Ensure manufacturability, cost efficiency, and compliance with defence-sector standards • Support prototyping, testing, validation, and field troubleshooting • Maintain BOMs within ERP (Navision/Business Central) and PLM (Windchill) • Lead compliance activities including CE/UKCA marking, technical documentation, • Support customer acceptance testing, inspections, and audit requirements • Perform structural and material optimisation using simulation-led methods • Conduct DFMEA, PFMEA, and FMEA activities across the design lifecycle Skill Required • Degree in Mechanical, Automotive, Aerospace Engineering or related discipline • 5–10+ years’ experience in mechanical design within regulated or heavy engineering • Strong proficiency in PTC Creo • Experience in FEA, structural analysis, and simulation-driven design • Knowledge of hydraulic system integration • Understanding of CE/UKCA compliance and technical documentation • Experience with ERP/PLM systems (Navision/Business Central, Windchill) • Strong analytical, problem-solving, and communication skills Apply within or contact Levi Goodridge at Sapien Engineering. Please note that our clients are unable to offer sponsorship for employment visas. Due to the high volume of applications, we receive, only those shortlisted will be contacted. If you do not hear from us within 14 days of applying, please assume that your application has not been successful