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12 Assistant jobs in Sellafield

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Administrative support

  • 07 February 2026
  • Millbank Holdings Ltd - Cumbria, North West, CA20 1DT
  • Permanent
  • Full time

Are you an organised and proactive administrator base in Cumbria? Are you ready to support a major UK infrastructure programme with precision and professionalism? Can you handle a high volume of documentation and coordination tasks with accuracy? The ...

Disability Confident

HCVA Nuclear Security Supervisor

  • 27 January 2026
  • Mitie - CA20 1PG
  • Permanent
  • Full time

Job OverviewSecurity Supervisor - HCVA 4 days, 3 nights, 4 off, 3 nights, 4 days, 4 off Job Overview -To protect our customer's property, people and/or assets by providing security services in direct accordance with the sites published Assignment Instructions...

OPSZ Nuclear Security Supervisor

  • 27 January 2026
  • Mitie - CA20 1PG
  • Permanent
  • Full time

Security Supervisor - OPSZ 4 days, 3 nights, 4 off, 3 nights, 4 days, 4 off Job Overview -To protect our customer's property, people and/or assets by providing security services in direct accordance with the sites published Assignment Instructions (AI's) and ...

HR Liaison Officer

  • 12 February 2026
  • Millbank Holdings Ltd - Ponsonby, North West, CA20 1PG
  • £70,000 to £75,000 per year
  • Permanent
  • Full time

Do you have experience providing HR support across large-scale projects or complex organisations in a regulated environment? Are you CIPD Level 5 qualified (or equivalent) and confident applying UK employment law in a high‑compliance setting? Are you ready to ...

Disability Confident

Administrator

  • 02 February 2026
  • Mitie - CA20 1PG
  • Permanent
  • Full time

Job OverviewTo provide administration support by coordinating general operations and ensuring departmental objectives are on schedule to meet or exceed deadlines. Main Duties -Main duties of the Administrator consist of but is not limited to; -Provide ...

Mechanical Site Engineer

  • 10 February 2026
  • NRL Ltd - Sellafield, North West, CA20 1PG
  • £50 to £55 per hour
  • Contract
  • Full time

NRL is currently recruiting for a Mechanical Site Engineer for a 12 month contract on Sellafield. Role- Mechanical Site Engineer Contract Length- 12 months Rate- £50.00-£55.00 per hour (Inside IR35) Location- Sellafield Key Responsibilities: Provide LFE and ...

Cost Engineer

  • 06 February 2026
  • Millbank Holdings Ltd - Sellafield, North West, CA20 1PG
  • £65,000 to £70,000 per year
  • Permanent
  • Full time

Do you have proven experience managing cost control on major civil engineering or infrastructure projects? Are you confident using cost management systems and producing detailed cost reports for high-value projects? The Opportunity Are you ready to play a key ...

Disability Confident

Mechanical Team Leader

  • 12 February 2026
  • Mitie - CA20 1PG
  • Permanent
  • Full time

Job Title : Mechanical Team LeaderLocation: Sellafield, Seascale, Cumbria, CA20 1PG Job Overview : Mechanical Team Leader within a Hard services team as a first point of contact for client and team employees, taking a proactive approach to customer care and ...

Planning Engineer

  • 12 February 2026
  • Millbank Holdings Ltd - Gosforth, North West, CA20 1PG
  • £70,000 to £80,000 per year
  • Permanent
  • Full time

The OpportunityThis major nuclear infrastructure project demands exceptional planning capability, programme discipline,o you have proven experience developing and managing integrated project schedules for major infrastructure projects using Primavera P6? Can ...

Disability Confident

Apprentice Electrical Engineer

  • 13 February 2026
  • Mitie - CA20 1PG
  • Contract
  • Full time

Location: Sellafield, Seascale, Cumbria, England, CA20 1PG Salary: £17,092.40 Start Date: September 2026 Ready to turn your potential into something extraordinary? At Mitie, we're the UK's leading facilities management and professional services company. We ...