CRS6JP00014732, Job Posting Title: Senior Process Engineer

Progressive Recruitment
Warrington, United Kingdom
3 weeks ago
Seniority
Senior
Posted
11 Apr 2026 (3 weeks ago)

Senior Process Engineer

3 positions available

Locations: Warrington or Bristol

Working Pattern: Hybrid - 3 days per week on site

Contract Length: 12 months

IR35 Status: Inside IR35

Security Clearance: UK Security Check (SC) - required

Start: Subject to clearance & onboarding

The Role

We are seeking experienced Senior Process Engineers to support a strategically important programme within the UK nuclear sector.

This role will be supporting the technical development, assessment and delivery of process solutions associated with the handling, conversion, and potential reuse of reprocessed uranium originating from historic reprocessing operations.

You will play a key role in process definition, safety justification, and technical assurance across the fuel cycle, working within a highly regulated nuclear environment.

Key Responsibilities

Lead and deliver process engineering activities across RepU-related systems and facilities

Develop and review process flows, mass balances, PFDs and P&IDs

Provide technical input into safety cases, hazard studies (HAZOP/HAZID), and ALARP arguments

Support options studies for storage, conversion, enrichment or reuse of RepU materials

Interface with nuclear safety, operations, mechanical and commissioning teams

Ensure designs comply with UK nuclear regulatory requirements and site licence conditions

Contribute to design reviews, technical reports and regulatory submissions

Act as a senior technical authority and mentor junior engineers where required

Essential Experience

Proven experience as a Senior Process Engineer in the nuclear industry

Strong background in nuclear fuel cycle, reprocessing, waste or materials handling

Experience working in high-hazard, regulated environments

Familiarity with UK nuclear standards and safety case development

Ability to work on site and collaborate with multi-disciplinary teams

Active SC clearance (or clearable)

Desirable

Previous experience with Sellafield, fuel reprocessing or uranium conversion projects

Knowledge of RepU, MOX, enrichment or fuel fabrication processes

Chartered Engineer status or working towards it

If you've got strong nuclear process engineering experience and active SC clearance, this is a chance to work on a technically complex, nationally significant project.

Please click to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.

To find out more about Progressive please visit

Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales

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