Senior Mechanical Engineer

Senior Mechanical Engineer

Location : Hull, GB, HU13 0GD; Bristol, GB, BS16 1EJ; Preston, GB, PR2 2YB; Leicester, GB, LE8 6LH; Warrington, GB, WA3 6YD.

Onsite or Hybrid : Hybrid

Job Title : Senior Mechanical Engineer

Location : Flexible, UK

Compensation : Competitive Salary + Benefits

Role Type : Full time / Permanent

Role ID : SF67250

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 Mechanical Engineer at one of our key locations : Bristol, Warrington (Cheshire), Hessle (East Riding of Yorkshire), or Preston (Lancashire).

The role

As a Senior Mechanical Engineer, you'll be a key contributor to a major civil nuclear decommissioning programme. This initiative focuses on the safe dismantling and remediation of legacy nuclear infrastructure, with a strong emphasis on environmental protection, regulatory compliance, and long–term sustainability. You'll work within a multidisciplinary team to develop and integrate complex mechanical systems, applying innovative engineering solutions to support the safe deconstruction and future proofing of nuclear facilities.

Day to day, you'll lead the delivery of complex mechanical engineering tasks, applying deep technical expertise to solve challenging problems, produce and review high quality documentation, and guide junior engineers, while collaborating across disciplines to ensure project milestones are met with precision and integrity.

• Foster collaboration across engineering and cross functional teams to ensure cohesive project delivery and technical alignment.
• Build and maintain strong relationships with customers, providing clear communication and technical insight to support project progress and business development.
• Apply relevant procedures, codes, and standards rigorously to all engineering activities, ensuring compliance and technical excellence.
• Lead the production and review of engineering outputs–including calculations, drawings, models, and reports–while maintaining design integrity throughout the lifecycle.
• Identify and manage project risks, contribute to safety assessments, and support continuous improvement through technical evaluations and process enhancements.

This is a full time, permanent position (37 hours per week) and provides hybrid working arrangements with three days in the office / onsite, based at one of our key locations : Bristol, Warrington (Cheshire), Hessle (East Riding of Yorkshire), or Preston (Lancashire).

Essential experience of the Senior Mechanical Engineer

Qualifications for the Senior Mechanical Engineer

As a leader within the UK nuclear industry, Cavendish Nuclear, part of Babcock International Group, provides a comprehensive range of critical nuclear solutions in clean energy, defence and civil new build and decommissioning projects. Together, we're innovating to make nuclear safer, faster and cost effective across the nuclear energy life cycle. Your career with us could take you anywhere within Babcock International Group – from Canada, the USA to Japan. Work with us to create a safe and secure world, 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 / 12 / 2025

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