Senior Mechanical Engineer

Babcock Canada Inc.; Carlisle; Hybrid; GBP 100,000 - GBP 125,000; Full time

Job summary

A leading nuclear engineering firm in the UK is seeking a Senior Mechanical Engineer. This full-time position involves leading engineering tasks, ensuring compliance, and producing engineering documentation. Successful candidates will have a relevant engineering degree and experience in multidisciplinary teams. The role is based in Whitehaven, with hybrid working arrangements. Competitive salary and benefits are included, forming part of a comprehensive package designed for professional growth and well-being.

Benefits

Matched contribution pension scheme

Access to Digital GP and health checks

Employee share scheme

Employee shopping savings portal

Payment of Professional Fees

10-days special paid leave for reservists

Holiday Trading benefit

Paid volunteering day

Employee assistance programme

Qualifications

• Proven experience in engineering activities across the full project lifecycle.
• Strong track record in producing and reviewing engineering documentation.
• Demonstrated ability to work in multidisciplinary teams.

Responsibilities

• Lead complex mechanical engineering tasks and provide guidance.
• Produce and review engineering documents including calculations and reports.
• Act as a key technical interface and build strong customer relationships.
• Ensure safety and compliance through relevant procedures and standards.
• Identify and manage project risks contributing to continuous improvement.

Skills

Delivering engineering activities

Producing engineering documentation

Working in multidisciplinary teams

Excellent communication skills

Education

Engineering degree in relevant discipline

Job description

Overview

Location: Whitehaven, Cumbria + Hybrid Working Arrangements

Compensation: Competitive Salary + Benefits

Role Type: Full time / Permanent

Role ID: SF68226

Lead the Engineering That Shapes the Future of Nuclear Decommissioning

At Cavendish Nuclear, we’re working to create a safe and secure world, together. If you join us, you can play your part as a Senior Mechanical Engineer at either of our Westlake’s Science Park, Moor Row or Warrington, Cheshire sites.

The role

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.

Day-to-day, you’ll have the following responsibilities:

• 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.

Essential experience

• 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

Qualifications

• Engineering degree (or equivalent) in a relevant engineering discipline
• 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

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 [e-mail] 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.

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