Commissioning Mechanical Test Engineer - Combat Systems

Commissioning Mechanical Test Engineer

Location:

Helensburgh, GB, G84 8HL

Onsite or Hybrid:
On Site

Job Title:

Commissioning Mechanical Test Engineer
- Combat Systems

Role Type:
Full time / Permanent

Role

Engineer the Next Generation of Naval Defence.

As a Commissioning Mechanical Test Engineer
- Combat Systems, you’ll have a role that’s out of the ordinary. You’ll be at the heart of submarine readiness—ensuring critical systems are tested, calibrated, and commissioned to the highest standards. This is a hands‑on, technically engaging role that directly supports national defence and safety. You’ll solve complex engineering challenges, collaborate across disciplines, and contribute to the delivery of world‑class naval assets.

Day‑to‑day you’ll be:

• Conducting mechanical testing, calibration, and commissioning of submarine systems
• Supporting the Senior Test Engineer to optimise team performance and resource allocation
• Applying safety, quality, and environmental standards across all commissioning activities
• Reviewing engineering documentation and contributing to cross‑functional problem‑solving
• Collaborating with contractors and internal teams to manage risks and meet commissioning goals

This role is full time, 36 hours per week Monday to Thursday and is based on site at HMNB Clyde Faslane.

• Proven experience in mechanical commissioning and testing
• Ability to work autonomously and within multidisciplinary teams
• Strong understanding of safety and quality protocols in engineering environments
• Experience interpreting technical documentation and resolving engineering issues
• Comfortable engaging with internal and external stakeholders

• Recognised Mechanical Engineering Apprenticeship or HNC in Mechanical Engineering (or equivalent with relevant experience)

The successful candidate must be able to achieve and maintain Security Check (SC) security clearance for this role.

• Matched contribution pension scheme, with life assurance
• Access to a Digital GP, annual health check, and nutritional consultations through Aviva Digi Care+
• Employee share scheme
• Employee shopping savings portal
• Payment of Professional Fees
• Reservists in the armed forces receive 10‑days special paid leave
• Holiday Trading allows 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.

We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please emailcar 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.