As a Senior Mechanical Engineer, you'll be a key contributor to one of the UK's major civil nuclear decommissioning programmes. You'll take a leading role within a multidisciplinary engineering team, applying advanced technical expertise to develop, integrate, and enhance complex mechanical systems that directly support the safe deconstruction and futureproofing of nuclear facilities. Your work will influence high‑impact engineering decisions, ensuring compliance, technical excellence, and robust design integrity across the full project lifecycle. You'll also support the development of junior engineers, collaborate across functions, and help shape best‑practice engineering within one of the most respected nuclear design alliances in the UK.
- Lead the delivery of complex mechanical engineering tasks and provide high‑quality technical guidance
- Produce and review engineering documentation, including calculations, drawings, models, and reports
- Build strong relationships with customers and act as a key technical interface
- Apply relevant procedures, codes, and standards to ensure safety, compliance, and technical rigour
- Identify and manage project risks while contributing to safety assessments and continuous improvement initiatives
This is a full‑time position working 37 hours, 5 days per week based at either of our Westlake’s Science Park, Moor Row or Warrington, Cheshire sites.
Qualifications
- Proven experience delivering engineering activities across the full project lifecycle
- Strong track record of producing and reviewing detailed engineering documentation
- Demonstrated ability to work effectively in multidisciplinary teams
- Excellent communication skills with confidence engaging customers and stakeholders
- Engineering degree (or equivalent) in a relevant engineering discipline
- Must be able to achieve and maintain Standard (BPSS) security clearance for this role
Benefits
- 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‑day special paid leave
- Holiday Trading – allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their entitlement (open February through March annually)
- ‘Be Kind Day’ – one working day of paid leave a year (or equivalent hours) to undertake volunteering work with a chosen organisation or registered charity
- Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing
As a Senior Mechanical Engineer, you’ll be a key contributor to one of the UK’s major civil nuclear decommissioning programmes. You’ll take a leading role within a multidisciplinary engineering team, applying advanced technical expertise to develop, integrate, and enhance complex mechanical systems that directly support the safe deconstruction and futureproofing of nuclear facilities. Your work will influence high‑impact engineering decisions, ensuring compliance, technical excellence, and robust design integrity across the full project lifecycle. You’ll also support the development of junior engineers, collaborate across functions, and help shape best‑practice engineering within one of the most respected nuclear design alliances in the UK.
- Lead the delivery of complex mechanical engineering tasks and provide high‑quality technical guidance
- Produce and review engineering documentation, including calculations, drawings, models, and reports
- Build strong relationships with customers and act as a key technical interface
- Apply relevant procedures, codes, and standards to ensure safety, compliance, and technical rigour
- Identify and manage project risks while contributing to safety assessments and continuous improvement initiatives
This is a full‑time position working 37 hours, 5 days per week based at either of our Westlake’s Science Park, Moor Row or Warrington, Cheshire sites.
Qualifications
- Proven experience delivering engineering activities across the full project lifecycle
- Strong track record of producing and reviewing detailed engineering documentation
- Demonstrated ability to work effectively in multidisciplinary teams
- Excellent communication skills with confidence engaging customers and stakeholders
- Engineering degree (or equivalent) in a relevant engineering discipline
- Must be able to achieve and maintain Standard (BPSS) security clearance for this role
Benefits
- 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‑day special paid leave
- Holiday Trading – allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their entitlement (open February through March annually)
- ‘Be Kind Day’ – one working day of paid leave a year (or equivalent hours) to undertake volunteering work with a chosen organisation or registered charity
- Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing
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