Contract | £51-£56/hour (Inside IR35)
Warrington | Hybrid - 3 days on site / 2 days remote
Sector: Nuclear Decommissioning | Sellafield Ponds
We are seeking an experienced Senior EC&I Designer to support major engineering works within the Sellafield Ponds Programme, one of the most complex and high-hazard decommissioning challenges in the UK nuclear sector.
This role will see you taking a senior position within the EC&I design team, leading the development, review, and delivery of high-integrity design packages for safety-critical systems. You will play a key role in ensuring designs meet strict nuclear safety, regulatory, and engineering standards while supporting project delivery across multidisciplinary teams.
Working within a collaborative engineering environment, you will provide technical guidance to designers and engineers, contribute to design reviews, and ensure the production of high-quality EC&I design documentation.
Key Responsibilities
Lead the development and delivery of EC&I design packages supporting Sellafield Ponds projects
Produce, review, and check drawings, schematics, and technical documentation for safety-critical systems
Ensure all design outputs comply with Sellafield procedures, nuclear safety standards, and regulatory requirements
Support and contribute to design reviews, hazard studies, and technical assurance activities
Collaborate with multi-disciplinary teams including mechanical, structural, and project engineering
Provide technical leadership and mentorship to junior and mid-level EC&I designers
Assist in the verification, validation, and substantiation of engineering designs
Requirements
Significant experience as an EC&I Designer within the nuclear sector or other highly regulated industries
Strong understanding of electrical, control, and instrumentation design principles
Proven experience producing and checking engineering drawings, design documentation, and technical deliverables
Familiarity with Sellafield standards, processes, and design assurance requirements
Ability to support technical leadership and mentoring within a design team
SC clearance preferred, or the ability to obtain
Why Join?
£51-£56/hour (Inside IR35)
Hybrid working - 3 days in Warrington, 2 days remote
Opportunity to work on the Sellafield Ponds Programme, a nationally significant nuclear decommissioning project
Join a highly experienced engineering team working in a complex, safety-critical environment
Apply now to bring your senior EC&I design expertise to one of the UK's most important nuclear decommissioning programmes
Salary description
£42.00 - £56.00 per hour