Mechanical Engineer

Job Title:                       Mechanical Engineer

Location:                       Bristol + Hybrid Working Arrangement

Compensation:             Attractive Salary + Benefits

Role Type:                     Full time / Permanent

Role ID:                          SF69971

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 Mechanical Engineer, our Bristol office.

The role

As a Mechanical Engineer, you’ll have a role that’s out of the ordinary. You play a crucial role in delivering complex, safety‑critical engineering that helps to protect people, the environment, and the UK’s long-term energy security. You join a multidisciplinary team working on nationally significant defence nuclear infrastructure, contributing to projects that shape the future of clean energy, decommissioning, operations, and new-build facilities.

This is a full-time position, and you will work from any of our main UK locations including Bristol or Warrington, (Cheshire). Flexible working patterns are available.

Day-to-day, you’ll be required to:

• Apply engineering knowledge to produce and review technical outputs, including calculations, reports, specifications, and method statements.


• Conduct investigations and analyses to resolve technical challenges and support design improvements.


• Interface with internal teams, customers, and suppliers, ensuring correct application of procedures, codes, and standards.


• Deliver assigned tasks or packages of work, planning effectively and managing risks to meet time, cost, and quality requirements.


• Support and guide less experienced engineers while contributing to continuous improvement across engineering practices

Essential experience of the Mechanical Engineer:

• Experience working collaboratively within multidisciplinary teams.


• Broad engineering experience across a range of project types or tasks.


• Strong communication skills and confidence engaging with various disciplines and stakeholders.


• Post‑qualification industry experience.

Qualifications for the Mechanical Engineer:

• HND qualification as a minimum.

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 [email protected] 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: 03/07/2026

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