Submarine Support Careers

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Protecting the protectors

The UK’s nuclear submarines play a vital role in national security. Behind every deployment is a team of Babcock engineers, scientists, technicians, project professionals and nuclear specialists working together to keep the fleet safe, available and ready for whatever comes next.

Whether you’re an experienced professional, a skilled tradesperson, a recent graduate or looking for your next challenge, you’ll find opportunities to make a meaningful impact on the complex engineering programmes that enable the Royal Navy’s submarine fleet to operate safely and effectively.

They protect us. You’ll protect them.

Supporting the UK's Submarine Fleet

As a strategic partner within the UK’s Defence Nuclear Enterprise, we play a crucial role in ensuring that the entirety of the UK’s submarine fleet can provide unrivalled strength and security for our nation. Every minute. Of every day.

We’re proud to support every stage of the submarine lifecycle. From maintaining and repairing submarines in active service, helping shape future submarine capability, to our pioneering work on submarine dismantling – you can support one of the most important engineering missions in the UK.

Our door is open to talented individuals ready to take on new, purposeful opportunities and evolve into the professional they want to be. The team includes people with experience gained in industries as diverse as pharmaceutical or financial services. So whether you have worked in the defence sector or not, we will support you, develop you, and equip you with what you need to contribute to our mission.

Where you could be working

The centre of Britain’s submarine support activity.

As the UK’s only licensed site for deep maintenance and refuelling of nuclear-powered submarines, our Devonport site is home to thousands of employees working across engineering, commissioning, trades, nuclear operations and infrastructure.

Key opportunities

  • Engineering
  • Commissioning
  • Skilled Trades
  • Safety Engineering
  • Health Physics
  • Plant Management

Home to the UK’s operational submarine fleet.

Working alongside the Royal Navy, our teams support submarine operations, maintenance, facilities management and operational readiness at one of the most important defence locations in the UK.

Key opportunities

  • Skilled Trades
  • Engineering Support
  • Commissioning
  • Infrastructure & Plant Management
  • Health Physics
  • Safety Engineering

The engineering and programme delivery hub of our submarine business.

Our teams support the fleet through systems engineering, programme delivery, technical assurance and future capability development.

Key opportunities

  • Systems Engineering
  • Mechanical Engineering
  • Electrical Engineering
  • Digital Solutions
  • Supportability Engineering
  • Project Controls

Supporting the future and end-of-life phases of the submarine lifecycle.

Rosyth plays a leading role in infrastructure development, future capability programmes and the UK’s first submarine dismantling programme.

Key opportunities

  • Engineering
  • Health Physics
  • Safety Engineering
  • Infrastructure Programmes
  • Nuclear Operations

Where could you fit in?

Keeping the UK’s submarine fleet operational takes far more than engineers alone. Our teams bring together technical experts, project professionals, scientists, nuclear specialists and skilled tradespeople, each playing a vital role in supporting one of the most complex engineering enterprises in the world.

Whether your expertise lies in delivering projects, solving technical challenges, maintaining critical infrastructure or protecting people and the environment, there’s a place for you within our submarine programmes.

Behind every successful submarine programme is a team of project professionals ensuring complex work is delivered safely, efficiently and on schedule. From supporting submarine maintenance and infrastructure upgrades to delivering future capability and decommissioning projects, they help turn plans into reality.

Working in a highly regulated environment means balancing cost, schedule, risk and performance while maintaining the highest standards of safety and quality.

Visit our Project Management Page.

“I see myself as an enabler, someone who makes it possible for our submarines to go out and protect the UK. That could be by enabling design changes to give submarines new functionality. Or safety-critical changes that submariners would benefit from. Everything we touch is an opportunity to make a real difference to UK-critical programmes and projects.”

Sarah, Deputy Programme Manager

These teams oversee the facilities, plant and governance processes that enable nuclear submarine operations to take place safely.

Working in highly regulated environments, they take responsibility for ensuring infrastructure is operated, controlled and maintained to the highest standards.

“People are often surprised by the breadth of the roles here. From the outside it can sound like a governance position where you’re simply reviewing paperwork and checking approvals, but in reality you’re involved in a huge variety of engineering challenges. It turns people into very well-rounded engineers because you’re constantly exposed to different specialisms and asked to understand the bigger picture.”

Rui, Principal Plant Engineer

Read Rui’s Story

Nothing happens in a nuclear environment without safety assurance.

Our Safety Engineers provide the analysis, evidence and regulatory justification that allows programmes, facilities and operations to proceed safely.

Visit our Safety Engineering Page

Health Physics professionals help protect people, facilities and the environment from radiological risk.

Their expertise supports the safe operation, maintenance and decommissioning of nuclear-powered submarines and facilities.

“What makes us different is our commitment to training and development. We have the only dedicated Health Physics training team in the UK, which allows us to provide a level of structured development that is unmatched elsewhere in the industry. There is genuine support from leadership to do things properly and invest in people throughout their careers.”

Sam, Health Physics Training & Development Lead

Read Sam’s Story

Visit our Health Physics page

Our skilled trades teams transform engineering plans into reality.

Whether maintaining critical equipment, carrying out repairs or supporting major submarine programmes, these colleagues deliver the hands-on work that keeps the fleet moving.

Visit our Skilled Trades Page

“The submarine I’m currently working on is undergoing a deep maintenance period, which means we’re carrying out a complete refit over several years. It’s rewarding to play a part in such a significant programme of work. Every task contributes to maintaining these complex vessels and ensuring they’re fit for purpose when they return to service.”

Emily, Mechanical Fitter

Read Emily’s Story

Supportability Engineers help ensure submarines can be maintained, repaired and operated effectively throughout their service lives.

Working at the intersection of engineering, data, reliability and maintenance, they analyse how systems perform, identifying potential failures and developing maintenance strategies.

Visit our Supportability Engineering page

“In the submarine environment, where platforms are incredibly complex and expected to operate in challenging conditions, decisions can have a significant impact. Better supportability doesn’t just benefit the equipment itself. It helps the people who depend on it too, from maintenance teams planning their work to the crews who operate the platforms.”

Abigail, Supportability Engineer

Read Abigail’s Story

Mechanical Engineers help keep submarines and its infrastructure safe, reliable and available for operations. Working across maintenance, inspections, system support and engineering improvement programmes, they solve complex challenges and ensure critical equipment continues to perform throughout its service life.

Visit our Mechanical Engineering Page

“Like many engineers, I didn’t arrive with detailed knowledge of every system I support today. My degree gave me the engineering fundamentals, but the specialist expertise has come through experience, projects, site visits and learning from colleagues. Over time, I’ve steadily built my knowledge and confidence, which is one of the things I enjoy most”

Eleanor, Mechanical Systems Engineer

Read Eleanor’s Story

Systems Engineers ensure complex submarine programmes work as a complete system. By defining requirements, managing interfaces and coordinating activities across multiple disciplines, they help deliver safe, effective and sustainable solutions throughout the submarine lifecycle.

Visit our Systems Engineering Page

“Ultimately, Systems Engineering is about understanding how all of the different parts interact and ensuring they collectively deliver the required capability. If one team is changing a mechanical component, for example, I’m looking at what impact that might have elsewhere. Does it affect another subsystem? Does it create access issues? Does it impact maintenance activities or safety requirements?”

Thomas, Senior Systems & Transversal Engineer

Read Thomas’ Story

Commissioning Engineers are responsible for testing, validating and assuring complex systems before they enter service.

Working at the point where design becomes operational reality, they develop test programmes, lead trials and verify that critical equipment and infrastructure performs safely and as intended before it is handed over for use.

Visit our Commissioning Engineering Page

“It’s a myriad of systems, and the process of getting these complex platforms through their maintenance periods and returned to service safely and to a high standard is very satisfying. I would recommend Commissioning to anyone who has the desire to develop themselves in role where you can solve challenges with hands-on practical ability.”

Chris, Senior Commissioning Engineering

Digital Solutions professionals use data, digital technologies and innovative software solutions to help transform how we support and maintain the UK’s submarine fleet.

From developing digital tools and improving data management to enabling smarter asset management and engineering decision-making, they help unlock efficiencies, improve performance and support the future of submarine operations.

“I love working with the submarines. I think it’s the coolest part of my job. If people are genuinely enthusiastic about doing data analytics and data engineering, if they can showcase that they have experience of that kind of work, even if it’s not related to defence, these are the people I would like to work with.”

Tim – Lead Engineer

Any questions?

Got something specific you need an answer to? Then check out our Experienced Hires, Graduate, Undergraduate and Apprenticeship FAQs.