Principal Electrical, Control and Instrumentation Engineer

Job Title: Principal Electrical, Control and Instrumentation Engineer

Location: Flexible + Hybrid Working Arrangements

Compensation: Attractive Salary + Benefits

Role Type: Full time / Permanent

Role ID: SF70156

Shape the Future of Nuclear Engineering

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 UK locations, including Warrington (Cheshire), Bristol, Leicester, Humberside, Cumbria (Westlakes), Preston or Newbury.

The role

As a Principal Electrical, Control and Instrumentation Engineer, you'll have a role that is out of the ordinary. You'll lead the design and delivery of complex EC&I systems that underpin critical nuclear projects. This is your opportunity to make a tangible impact on energy security and national defence while advancing your career in a dynamic, highly regulated environment.

Day-to-day, you'll be

• Leading the design and delivery of electrical, control and instrumentation systems for major nuclear projects.
• Providing technical guidance and mentoring to engineers within the team.
• Ensuring engineering solutions meet safety, quality, and regulatory standards.
• Collaborating with internal teams and external stakeholders to solve complex technical challenges.
• Overseeing project progress, supporting decision-making, and contributing to strategic planning.

This is a full-time role, 37 hours per week. Hybrid working patterns are available, with three days on site. You will be based at any of our main UK locations, including Warrington (Cheshire), Bristol, Leicester, Humberside, Cumbria (Westlakes), Preston or Newbury.

Essential experience of the Principal Electrical, Control and Instrumentation Engineer

• Proven experience leading the design and delivery of complex EC&I systems in regulated industries (e.g., nuclear, energy, defence).
• Strong understanding of safety standards, compliance, and technical governance.
• Ability to manage and mentor engineering teams across multi-disciplinary projects.
• Experience working with control systems, PLCs, SCADA, and instrumentation technologies.
• Skilled in stakeholder engagement, including clients, regulators, and suppliers.

Qualifications for the Principal Electrical, Control and Instrumentation Engineer

• Degree in Electrical, Control, or Instrumentation Engineering (or equivalent).
• Chartered Engineer status (or working towards) is highly desirable.

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

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 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: 30/04/2026