Principal Electrical, Control and Instrumentation Engineer

Job Title:                      Principal Electrical, Control and Instrumentation Engineer

Location:                      Flexible, UK + Hybrid Working Arrangement

Compensation:             Attractive Salary + Benefits

Role Type:                   Full time / Permanent

Role ID:                        SF70380

Designing Safety‑Critical Systems That Protect People, Communities and The Future

At Cavendish Nuclear we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Principal Electrical, Control and Instrumentation Engineer, at any of our main Cavendish Nuclear sites.

The role

As a Principal Electrical, Control and Instrumentation Engineer (EC&I), you’ll have a role that’s out of the ordinary. You’ll be a key contributor to a major civil nuclear decommissioning programme. You’ll work within a multidisciplinary team to develop and integrate complex mechanical systems, applying innovative engineering solutions to support the safe deconstruction and futureproofing of nuclear facilities.

Day-to-day, you’ll be required to

• Promote effective collaboration across Engineering and other functional teams
• Interface with customers and the supply chain on design issues and support procurement specifications
• Ensure correct application of procedures, codes and standards to technical and engineering activities
• Contribute to product safety assessments and act as a technical interface with stakeholders
• Conduct technical investigations and analysis to resolve problems and improve designs
• Drive process improvements across the operational/design lifecycle to enhance quality and efficiency

This is a full‑time role working 37 hours per week. The role can be based at one of Cavendish Nuclear’s key locations including Warrington (Cheshire), Leicester (Leicestershire), Humberside (East Yorkshire), Cumbria (Westlakes), Preston (Lancashire), Newbury (Berkshire) or Bristol. Hybrid working patterns are available, with an expectation of three days per week on site.

Essential experience of the Principal EC&I Engineer:

• Understanding of IEC-61508 and IEC-61511 standards
• Familiar with the nuclear functional safety lifecycle
• SIL determination and verification
• Experience working with the safety case team

Qualifications for the Principal EC&I Engineer:

• Engineering degree (or equivalent qualification) in relevant engineering discipline and/or Chartered status or actively working towards Chartered status

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 (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 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

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 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: 27/02/2026

#CAVDESTNUC

#LI-JR1