Principal Mechanical Commissioning Engineer
Location: Devonport, Plymouth, GB, PL2 2BG
Role Type: Full time / Permanent
Role ID: SF73143
At Babcock we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Principal Mechanical Commissioning Engineer at our Devonport Royal Dockyard site.
The role
As a Principal Mechanical Commissioning Engineer, you’ll play a pivotal leadership role within our Naval Nuclear business, acting as a recognised subject matter expert across mechanical and combat systems commissioning. Working at the heart of submarine deep maintenance programmes, you’ll provide technical authority, guidance and assurance across complex and safety‑critical environments.
Day-to-day, you’ll lead and mentor skilled teams, shape commissioning strategies, and influence how major programmes are delivered. In return, you’ll gain exposure to some of the most advanced engineering challenges in the UK, strengthening your professional reputation and long‑term career prospects.
* Leading the mechanical commissioning function across submarine maintenance programmes
* Managing the planning, enablement and delivery of commissioning activities and packages
* Producing commissioning documentation aligned with design authority and assurance requirements
* Providing expert technical advice to support maintenance planning and operational readiness
* Supporting continuous improvement, capability development and effective resource assurance
Please note that the successful candidate will be required to pass a targeted medical questionnaire and/or medical examination as a condition of employment for this role.
This role is full time, 35 hours per week and is based on site at Devonport Royal Dockyard.
Essential experience of the Principal Mechanical Commissioning Engineer
* Significant experience commissioning mechanical systems within a nuclear environment
* Demonstrable experience supporting submarine deep maintenance or comparable complex programmes
* Strong knowledge of safe systems of work, control of work and system release processes
* Proven ability to manage multiple complex commissioning activities across concurrent projects
* Experience leading teams and managing change in a live operational environment
Qualifications for the Principal Mechanical Commissioning Engineer
* NVQ Level 4 or equivalent in an engineering discipline
* HNC or HND with substantial relevant engineering experience
* Higher or specialist engineering qualifications would be advantageous
Security Clearance
The successful candidate must be a sole UK National who is able to achieve and maintain Naval Nuclear Propulsion Information (NNPPI) security clearance for this role.
Many of the positions within our company are subject to national security clearance and Trade Control restrictions. This means that your eligibility for certain roles may be affected by your place of birth, nationality, current or former citizenship, and any residency you hold or have held. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK.
What we offer
* 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 Babcock employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. There is an annual Window to request this benefit. ‘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.
We are a disability confident committed employer.
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