Sellafield employs about 11,000 people directly (ONR, 2026) and supports a supply chain of more than 40,000 (Michael Page, 2026). We recruit Nuclear Engineers for the licensee, its Tier 1 partners and the contract supply chain, from CE&I designers on retrievals programmes to Principal Engineers holding design authority.
Key Takeaways
- Sellafield employs about 11,000 people directly (ONR, 2026), with a supply chain of more than 40,000 (Michael Page, 2026).
- Sellafield Principal Engineers earn £65,000 to £89,000 (Glassdoor, 2026), the highest band in our published UK dataset.
- Contract engineers at Sellafield earn £45 to £70 per hour Inside IR35 (Nuclear Sector Jobs, September to October 2026), about £337.50 to £525 a day.
- Morson Edge CE&I roles on the Legacy Pond Enhancement Programme start at £45 per hour Inside IR35 (Just Engineers, 2026).
- Sellafield matches graduate pension contributions up to 13.5%.
Where Nuclear Engineers Work Around Sellafield
Nuclear Engineer demand in West Cumbria splits between the licensee, its Tier 1 partners and the contract supply chain. The site sits on the coast near Seascale, with Whitehaven, Egremont and Workington as the main commuting towns along the A595.
Which programmes drive nuclear engineer hiring at Sellafield?
Retrievals and decommissioning programmes drive most Nuclear Engineer hiring at Sellafield. The Legacy Pond Enhancement Programme recruits CE&I, mechanical and safety engineers, with Morson Edge CE&I roles starting at £45 per hour Inside IR35 (Just Engineers, 2026). Each programme needs engineers who can substantiate changes to plant that predates modern design codes.
That substantiation work is slow to hand over. Engineers often rebuild the design basis before changing anything, so clients value candidates who have already worked on legacy plant.
Why is West Cumbria hard to recruit nuclear engineers into?
West Cumbria is hard to recruit into because the local pool is already committed to Sellafield and its supply chain. About 11,000 direct employees and a 40,000-plus supply chain draw on the same towns. New hires usually relocate, so offers have to cover the move as well as the role.
Sellafield also runs engineering teams from Risley in Warrington, which widens the pool for design roles. Site-facing roles still need people within reach of the A595.
On construction and modification packages, the welder and pipefitter shortage shapes how engineers sequence the work. Engineers re-plan packages when trade labour isn’t available.
What Nuclear Engineers Earn at Sellafield
Sellafield pay sits at the top of the published UK bands at Principal grade, while contract rates follow the Inside IR35 pattern. The figures below are the published benchmarks for the site.
| Role or benchmark | Published pay | Source |
|---|---|---|
| Principal Engineer | £65,000 to £89,000 | Glassdoor, 2026 |
| Contract engineer, Inside IR35 | £45 to £70 per hour | Nuclear Sector Jobs, September to October 2026 |
| CE&I, Legacy Pond Enhancement Programme | From £45 per hour Inside IR35 | Just Engineers, 2026 |
| Graduate scheme pension | Matched up to 13.5% | Sellafield, 2026 |
| UK Nuclear Engineer average | £47,420 | Indeed, 128 postings, October 2026 |
Contract work is a large part of the site market. Nuclear contract rates typically sit 25% to 45% above equivalent staff salaries (defence-jobs.co.uk, 2026), and the published Sellafield contract rates sit Inside IR35, so the IR35 changes contractors track feed straight into the rate.
Inside IR35 engagements run through umbrella companies. The April 2026 rules on joint and several liability made umbrella compliance part of every client’s risk.
Clearance and Eligibility for Sellafield Roles
Sellafield roles need at least BPSS, which is pre-employment screening rather than a clearance level, and many need national security vetting. UKSV targets 25 net working days for CTC and SC and 95 for DV, counted from a complete application.
Contractors moving between Sellafield packages keep their vetting live through clearance renewals. That’s why already-cleared engineers fill short-notice gaps first.
How We Recruit Nuclear Engineers for Sellafield
- Step 1: We split licensee, Tier 1 and contract briefs, because each pays differently and recruits from a different part of the West Cumbria pool.
- Step 2: We screen for legacy plant experience, since retrievals work needs engineers who can rebuild a design basis before changing it.
- Step 3: We price relocation into the offer, because most site-facing hires move into West Cumbria rather than commute.
- Step 4: We gather BPSS evidence and confirm clearance status at the first call, so the sponsor can submit a complete application on day one.
- Step 5: We cover vetting windows with cleared contractors at the published £45 to £70 per hour Inside IR35 band.
Our nuclear recruitment team covers Sellafield alongside Warrington and Derby.
Sellafield Nuclear Engineer FAQs
What does a nuclear engineer earn at Sellafield?
Sellafield Principal Engineers earn £65,000 to £89,000 (Glassdoor, 2026), the highest band in our published UK dataset. Contract engineers earn £45 to £70 per hour Inside IR35 (Nuclear Sector Jobs, September to October 2026). The UK Nuclear Engineer average is £47,420, and Sellafield matches graduate pension contributions up to 13.5%.
How many people work at Sellafield?
Sellafield employs about 11,000 people directly, according to the Office for Nuclear Regulation (2026). Its supply chain adds more than 40,000 (Michael Page, 2026). That combined demand draws on Whitehaven, Egremont, Workington and the wider West Cumbria pool, so most new engineering hires relocate into the area.
Do Sellafield nuclear engineers need security clearance?
Every Sellafield role needs at least BPSS, which is pre-employment screening rather than a clearance level, and many roles need national security vetting. UKSV targets 25 net working days for CTC and SC and 95 for DV, counted from a complete application, so start dates need planning from the first call.
Can you work on Sellafield projects from Warrington?
Yes, for many design roles. Sellafield runs engineering teams from Risley in Warrington, and uses the Design Engineer (Nuclear) title there. Site-facing roles in retrievals, commissioning and plant support still need engineers within reach of the A595 and the Sellafield site near Seascale.
Need a Nuclear Engineer for Sellafield in 2027?
Scantec recruits Nuclear Engineers for Sellafield and its supply chain on permanent and contract terms, so call our nuclear desk on +44 151 666 8999 to brief your role.
