Senior Mechanical Engineer

Location: Flexible, UK

Job Title: Senior Mechanical Engineer

Compensation: Competitive Salary + Benefits

Role Type: Full time / Permanent

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), Newbury (Berkshire) or Preston (Lancashire).

The role

As a Senior Mechanical Engineer, you’ll have a role that’s out of the ordinary. This role will contribute to a high-impact public sector Defence Nuclear infrastructure initiative focused on enhancing operational resilience and sustainability across critical systems. The project involves complex mechanical systems integration, requiring innovative engineering solutions within a multidisciplinary team.

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, based at one of our key locations: Bristol, Warrington (Cheshire), Newbury (Berkshire) or Preston (Lancashire).

Essential experience of the Senior Mechanical Engineer:

• Proven experience delivering engineering activities across the full project lifecycle, from concept design through to implementation.
• Demonstrated ability to work effectively within multidisciplinary teams, contributing to complex technical solutions and project outcomes.
• Strong track record of producing and reviewing detailed engineering documentation, including calculations, drawings, and technical reports.
• Excellent communication skills with the ability to engage confidently with stakeholders and customers to resolve technical and delivery challenges.

Qualifications for the Senior Mechanical Engineer:

• Engineering degree (or equivalent qualification) in relevant engineering discipline, with significant demonstrable experience.

We offer a comprehensive range of benefits, including matched contribution pension scheme, life assurance, access to a Digital GP, and excellent development opportunities. We are a disability confident committed employer and are happy to talk about flexible working arrangements.

We are committed to building an inclusive culture where everyone’s free to thrive. If you have a disability or need any reasonable adjustments during the application and selection stages, please email careers@babcockinternational.com.