BAE Systems
Senior Commissioning Engineer - Mechanical
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior Commissioning Engineer - Mechanical
Senior Commissioning Engineer – Mechanical (Propulsion)
Location
Barrow-In-Furness – Hybrid and flexible working arrangements available. Please speak to your recruiter for details.
Salary
Competitive
Who We Are
Join BAE Systems and be part of something truly exceptional. As a valued member of our global team, you’ll contribute your skills to drive innovation in defence, aerospace and security solutions—shaping a safer future.
From submarine propulsion to satellite technology, your work will impact critical mission areas. Two such areas are now hiring an exceptional Senior Commissioning Engineer, Mechanics (Propulsion).
As part of a wider team, you’ll play a key role in:
- Designing and validating cutting-edge electrical systems across multiple naval platforms
- Commissioning advanced propulsion and mechanical systems across aircraft and submarines
- Supporting the Royal Navy’s Continuous At Sea Deterrent
Progressing the UK’s strategic capability means challenging the status quo and embracing creativity to bring new-age technology to life.
What You’ll Be Doing
As a Senior Commissioning Engineer focused on Mechanical (Propulsion), you'll lead commissioning activities for Dreadnought-class submarines—delivering this epithelial engineering move for the Royal Navy and a pivotal part of maintaining the UK's ballistic missile capability.
Your responsibilities will include:
- Ensuring the safe operation, testing, and integration of mechanical propulsion systems for future-of-class submarines
- Undergoing complex commissioning activities in compliance with stringent defence, national and international safety regulations
- Collaborating closely with engineering, naval stakeholders, Royal Navy representatives and Ministry of Defence teams
- Developing and maintaining comprehensive commissioning, test and safety procedures in alignment with company policies and regulatory standards
Core Duties
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
- Commission/operate propulsion machinery systems, including:
- Lubrication systems
- Cooling systems
- Mechanical drive turbines
- Condensate recovery
- Lead/participate in factory acceptance testing, sea trials and other validation testing, sometimes overseas.
- Mentor junior team members, fostering knowledge transfer in commissioning practises.
- Represent BAE Systems credibility in contractually binding engagements across testing phases.
- Review and update process documentation as part of continuous improvement.
- Work with other commissioning/commercial teams and other discipline teams to ensure on-time, high-quality delivery of projects.
Essential Skills
To excel in this highly technical and safety-critical role, you must have:
- Hands-on experience with heavy machinery commissioning (e.g. cogeneration plants, steam turbines, electric motors)
- Proficiency in mechanical testing and validation:
- Mechanical flushing and test-rig technologies
- EN 50155 and other marine-focussed standards
- Pressure, vacuum and leak testing certifications
- Familiarity working in nuclear or classified facilities, with awareness of Appropriate Level Licensing in Submarine acceptance areas
- Recognised by your peers as a father figure in commissioning, with experience on large and complex mechanical systems
- Instinctive safety awareness, adhering to Control of Contractor Premises at DOAE (Defence, Ordnance, Armament, Equipment) estates
The Propulsion Mechanical Commissioning Team
You’ll be part of BAE Systems’ Dreadnought Submarine Programme—a 4-vessel suite designed to carry the UK's next generation of nuclear deterrent to sea.
This programme is part of one of the most important UK defence projects for decades—work you’ll do now will influence the safety, current operations and precedent setting contexts for Royal Navy submarines for decades. As a senior asset, you will not only be in a key technical position but also be enabling missions that protect the nation.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
This is an opportunity to work on high-consequence systems and engineering, with access to elite engineering mentorship and training resources.
Relocation support package may be available—please discuss with our recruitment team.
A Place Where Everyone Can Thrive
As a people-proof organisation, we’re particularly proud to foster an inclusive culture where all professional backgrounds feel valued and free to thrive.
Require Security Clearances?
Due to the nature of our work, BAE Systems frequently hire personnel with the appropriate security vetting.
To be recruited, successful candidates may need NuSCRS/SCD security clearance or DBS. Depending on assignment, you may be asked to demonstrate 5-10 years of continuous UK residency for higher vetting queries.
Why BAE Systems?
Here, your effort to expand knowledge and excel drives real-world impact. Our environmental record reflects decades and millions of sustainable engineering hours. Your contribution will be recognised, cultivated through learning opportunities, connections and forming meaningful work relationships.
Rewards include tangible flexibilities—some of the best in UK—massive appreciation for contributions and a conscious groupciling strategy enabling growth.
Closing Date
The vacancies as advertised will close at 16:00 (GMT) Friday, 16th July 2026.
We encourage early applications, as early candidates could be considered as vacancies may close early due to strong competition. You can keep informed of vacancies by signing up to PeopleNet and following @BAESystems on X.
Key Hashtags
#LI-KN1 #WorksForBratel, #Shipbuilding, #Submarine
usking betewaoyes: Any additional notes—such as eligibility for relocation support or team morale feedback—can be requested during or after the interview process.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills