Senior Mechanical Design Engineer(Tooling) - Siemens NXLocation: Derby (On-site)Sector: Highly Regulated Engineering / Defence / Complex ToolingClearance: British Citizens only - eligibility for UK Security Clearance (SC) requiredThe OpportunityAre you and experienced mechanical design engineer, looking for your next long-term opportunity?We're delighted to be supporting a major engineering consultancy, delivering complex tooling and mechanical design solutions across highly regulated sectors, as part of a wider framework agreement.Due to significant investment and long-term programme growth, we're looking for experienced Senior Mechanical Design Engineers, with strong Siemens NX skills and a background in tooling, fixtures, jigs, lifting equipment or precision mechanical systems.Here, you will be joining a powerhouse of the engineering world, working with a talented, multi-disciplinary engineering team, and the chance to collaborate on cutting-edge, meaningful UK programmes with long-term career potential.Key Responsibilities3D modelling and 2D detailing in Siemens NXManaging design data via Teamcenter (PLM)Full lifecycle tooling design: requirements concept DfM releaseProducing assemblies, sub-assemblies, BOMs and detailed drawingsApplying GD&T to ASME Y14.5 / BS standardsSupporting gated design reviews and client presentationsEnsuring compliance with safety legislation and UKCA requirementsWhat You'll BringEssential:Strong Siemens NX (3D + 2D)Proven tooling / jigs / fixtures / lifting equipment design experienceTeamcenter or similar PLM experienceSolid DfM understandingConfident with GD&TDesirable:Experience in nuclear, aerospace, defence, heavy engineering, oil & gasFEA exposure (Abaqus, ANSYS, MathCAD or hand calcs)Manufacturing or toolmaker backgroundWhy Join?Long-term, high-value engineering programmesGrowing team with strong investment and future opportunitiesComplex, interesting design challengesWork that contributes to nationally significant projectsSecurity RequirementsDue to project restrictions, applicants must be British Citizens (sole nationality) and eligible for UK Security Clearance (SC).ApplyIf you're an experienced Mechanical Design Engineer with strong NX capability and a passion for complex tooling design, we'd like to hear from you. Apply for a confidential discussion.