Electrical and Instrumentation Technician

Job Title:                 Electrical and Instrumentation Technician 
Location:                 Seascale, Cumbria
Compensation:       Up to £43,770 + Benefits
Role Type:               Full time and Permanent 
Role ID:                   SF59972

Be Part of Nuclear Safety Excellence 

At Cavendish Nuclear we’re working to create a safe and secure world, together. If you join us, you can play your part as an Electrical and Instrumentation (E&I) Technician at the Sellafield site, near Seascale and Egremont, Cumbria. 

The role
As an E&I Technician, you'll have a role that's out of the ordinary.  You are at the heart of our operations—responsible for the repair, maintenance, calibration, and testing of Radiation Protection Instruments. Your work ensures that critical systems meet the highest standards of safety, accuracy, and compliance. 

Day to day, you’ll repair, maintain, calibrate, and test radiation protection instruments to meet customer work demands

• Maintain instructions and record information accurately
• Conform to local procedures, rules, and working practices to ensure compliance with specified regulatory and customer requirements
• Provide technical advice, updates on work progress, and other relevant information to customers as required
• Act as a mentor for other team members, including apprentices and new entrants, to ensure standards and best practices are maintained

This permanent role offers 37 hours per week and is based at our Sellafield site, close to Seascale and Egremont in Cumbria.

Essential experience of the E&I Technician:

• Knowledge and understanding of conventional and nuclear safety
• Proven experience servicing electronic instrument systems

Qualifications for the E&I Technician:

• Level 3 Electrical Qualification 

• Apprenticeship or equivalent training in a relevant discipline (e.g., Electronic, Electrical, Instrumentation, Technology)

Security Clearance

The successful candidate must be 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 (

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 is a benefit that allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This Window opens 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 wellbeing.

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 and discover how far we can go, together.

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 View email address on jobs.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: 21/09/2026

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