Mechanical Design Engineer jobs in United Kingdom

Tooling Engineer (Nuclear Sector)
Location: Derby (Hybrid Potential)
IR35: Inside
Hours: Zero-hour contract
Clearance: SC clearance required

We are looking for an experienced Tooling Engineer to support major UK nuclear programmes across submarine systems, power generation, decommissioning projects and high‑integrity structures. This role is ideal for an engineer who thrives on delivering practical, safety‑critical solutions and enjoys taking ownership from concept through to manufacture.

• Design and develop bespoke tooling systems to support manufacturing operations.
• Work closely with production teams to ensure tooling is fit for purpose and safe to use.
• Recommend and implement improvements to existing tooling solutions.
• Troubleshoot issues, perform root cause analyses and drive corrective actions.
• Ensure designs comply with relevant industry standards, safety requirements and nuclear‑sector regulations.

• Degree in Tooling Engineering, Mechanical Engineering, or related discipline.
• Strong background in tooling design—ideally within nuclear or similarly high‑integrity sectors.
• Experience with mechanical tolerances, materials selection and ergonomic principles.
• Proficiency in NX11 and Teamcenter.
• Experience using SAP packages.
• Ability to produce high‑quality technical documentation (design reports, drawings, specifications).
• Strong communication and presentation skills.
• Flexibility to work on‑site in Derby when required.

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.