Job Description

Job Title: Senior Systems Engineer

Location: Bristol or Warrington, Cheshire + Hybrid Working Arrangement

Compensation: Attractive Salary + Benefits

Role Type: Full time / Permanent

Role ID: SF72936

Shape The Future of Nuclear Engineering and Make A Real-World Impact

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 Senior Systems Engineer, at our Bristol or Warrington, Cheshire site.

The role

As a Senior Systems Engineer, you’ll have a role that’s out of the ordinary. You’ll play a pivotal role in delivering high-impact systems engineering across a major long-term nuclear programme.

Day-to-day, you’llbe required to:

• Lead and direct systems engineering activities across complex programmes
• Allocate tasks and overseeing delivery from a team of systems engineers
• Mentor and support junior engineers to grow capability across the team
• Deliver hands-on systems engineering including requirements, architecture, and integration
• Lead and contribute to technical and design reviews with key stakeholders

This is a full-time role working 37 hours per week at either our Bristol or Warrington, Cheshire site. Hybrid working patterns are available.

Essential experience of the Senior Systems Engineer:

• Demonstrating strong systems engineering experience across requirements engineering, system architecture, integration, verification and validation
• Leading or mentoring engineers within engineering teams
• Working on complex, multidisciplinary engineering programmes
• Reviewing technical outputs and leading engineering or design reviews
• Applying full lifecycle systems engineering expertise

Qualifications for the Senior Systems Engineer:

• Degree in Engineering or equivalent experience

• Chartered Engineer status or working towards chartership (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 (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: 04/06/2026

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