Senior Mechanical Engineer - Sellafield SRP Project (Contract)

Warrington | 3 Days On-Site (Hybrid) | Infrastructure Project

£51-£56/hour (Umbrella) | Long-Term Contract

We're looking for a Senior Mechanical Engineer to support delivery on the Sellafield Product & Residue Store (SPRS) Retreatment Plant (SRP) - a key nuclear infrastructure programme handling Special Nuclear Materials (SNM) for safe long-term storage until 2120.

The project is in its execution phase, and this role is critical in ensuring mechanical design solutions are technically sound, compliant, and ready for installation, commissioning, and operation.

Role Overview

Lead the delivery of mechanical plant and equipment design, including glovebox systems and external support equipment

Produce and check specifications, drawings, assessments, and verification deliverables

Support resolution of manufacturing and testing queries, TQs, and concessions

Oversee design change implementation and ensure configuration control

Collaborate with CE&I engineers and multidisciplinary teams to ensure integrated solutions

Contribute to test documentation (works test, integrated test) and site installation planning

Mentor and guide junior designers and oversee document quality

Essential Skills & Experience

Advanced user of Autodesk Inventor and Vault Basic/Pro

Familiarity with GPS ISO (BS 8888) and plant layout/integration

Experience managing and directing design teams on mechanical plant and equipment

Understanding of installation, alignment, and works testing of complex systems

Strong record in resolving manufacturing issues and supporting document control

Desirable Experience

Experience with Sellafield Ltd engineering standards

Knowledge of glovebox containment design, safety case awareness

Working knowledge of CDM, PUWER, LOLER, and SoMSR compliance

Familiarity with nuclear design and integration principles

Contract Details

Rate: £51-£56/hour (via umbrella company)

Location: Hybrid - minimum 3 days/week on-site, up to 5 days depending on project needs

Additional: Site visits to supplier premises may be required

Security: Must hold or be eligible for SC clearance

Tools: Work to be completed on Sellafield-issued laptop at an approved location

Be part of a once-in-a- nuclear project securing materials into the next century.

Apply now or get in touch for more information