Location: Sellafield
Compensation: Attractive Salary + Benefits
Role Type: Full time / Permanent
Job Title: Maintenance System Operator
Role ID: SF 75059
Overview
Help Keep Critical Operations Running in a Role That Makes a Real Difference. At Cavendish Nuclear, we’re working to create a safe and secure world, together. If you join us, you can play your part as a Maintenance System Operator at Sellafield, near Seascale, Cumbria.
The role
As a Maintenance System Operator, you’ll provide vital maintenance system support to service delivery teams, helping to ensure work is effectively managed, tracked and completed to the highest standards.
Day-to-day responsibilities
- Operating work order systems to support the timely delivery of maintenance activities for customers.
- Supporting the procurement of spares, consumables and office supplies through established procurement processes.
- Maintaining and updating maintenance tracking systems to ensure accurate reporting and effective service delivery.
- Providing administrative support and collating data for customer and business reports.
- Identifying and implementing service improvements that enhance efficiency, quality and customer satisfaction.
This role is based at Sellafield and is 37.5 hours per week, Monday to Friday, 07:30 to 15:30. The team works an additional 30 minutes per day, equating to up to 13 additional days’ leave per year.
Essential Experience
- Using Microsoft Office applications confidently in a busy working environment.
- Working within a service delivery, operations support or customer-focused environment.
- Managing documentation, records or controlled information accurately.
- Building positive working relationships with internal and external stakeholders.
- Using SAP or similar enterprise resource planning systems is beneficial.
Qualifications
- GCSE (or equivalent) Grade C/4 or above in English.
- GCSE (or equivalent) Grade C/4 or above in Mathematics.
- GCSE (or equivalent) Grade C/4 or above in a Science subject.
Security Clearance
The successful candidate must be a sole UK national and able to achieve and maintain Security Check (SC) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels – GOV.UK (www.gov.uk).
What We Offer
- Generous holiday allowance.
- Matched contribution pension scheme, with life assurance.
- Access to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+.
- Employee share scheme.
- Employee shopping savings portal.
- Payment of Professional Fees.
- Reservists in the armed forces receive 10-days special paid leave.
- Holiday Trading allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement (open February through to March annually).
- ‘Be Kind Day’ enables employees to take one working day’s paid leave a year (or equivalent hours) to undertake volunteering work with their chosen organisation or registered charity.
- Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial well‑being.
About Cavendish Nuclear
We’re Cavendish Nuclear – a team of c5,000 specialists and a core part of Babcock International Group. Here, you’ll be part of something bigger. Across clean energy, defence, and civil decommissioning, your work will contribute to projects that are critical to energy security and national protection. Together, we’re shaping a future that lasts – not only through the impact we make, but through meaningful careers that respect your work‑life balance.
Join us
We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please email careers@babcockinternational.com with the subject header ‘Reasonable adjustments requirement’. We’re committed to building an inclusive culture where everyone’s free to thrive. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.
Closing date: 29/07/2026
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