Overview
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 will 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) with hybrid working arrangements: three days in the office/onsite, based at one of our key locations: Bristol, Warrington (Cheshire), Whetstone (Leicestershire), or Preston (Lancashire).
Responsibilities
* Lead delivery of complex mechanical engineering tasks across the full project lifecycle, from concept design through implementation.
* Work within multidisciplinary teams to contribute to complex technical solutions and project outcomes.
* Produce and review detailed engineering documentation, including calculations, drawings, and technical reports.
* Engage with stakeholders and customers to resolve technical and delivery challenges.
* Identify and manage project risks and support safety assessments.
* Contribute to continuous improvement through technical evaluations and process enhancements.
* Collaborate with cross-functional teams to ensure cohesive project delivery and technical alignment.
Qualifications and Experience
* Engineering degree (or equivalent) in a relevant discipline, with significant demonstrable experience.
* Proven experience delivering engineering activities across the full project lifecycle.
* Strong track record of producing and reviewing engineering documentation, including calculations, drawings, and technical reports.
* Excellent communication skills with the ability to engage confidently with stakeholders and customers.
* Security clearance: ability to achieve and maintain Standard (BPSS) / Security Check (SC) clearance.
Benefits and Location
* Generous holiday allowance
* Matched contribution pension scheme with life assurance
* Access to digital health services and wellness benefits
* Employee share scheme and other financial wellbeing options
* Discretionary benefits such as additional leave purchase/sell schemes
* Flexible working arrangements where possible
About Cavendish Nuclear
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. We are committed to creating a safe and secure world, together.
Equality, Diversity and Accessibility
We are a disability confident committed employer. If you have a disability or need reasonable adjustments during the application and selection stages, please email us with the subject header "Reasonable adjustments requirement". We are committed to building an inclusive culture where everyone can thrive. We are happy to discuss flexible working arrangements; please ask about alternative patterns of work at interview.
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