Graduate programme

Start your career in marine engineering

Start your career in marine engineering

Pembroke Dock has a proud maritime heritage and an exciting future at the heart of marine engineering and renewable energy.

From our base here in Pembrokeshire, Mainstay offers graduates, apprentices, students and career changers the opportunity to develop practical skills, work on ambitious projects and build a long-term career within a growing industry.

We are continuing to strengthen our relationships with colleges, universities and skills providers, helping create clearer routes into modern marine engineering and supporting the next generation of local talent.

Future opportunities may include:

  • Graduate roles and structured development pathways.

  • Apprenticeships and practical training.

  • Work experience and industry placements.

  • College and university engagement.

  • Site visits and careers events.

  • Professional and technical development.

Develop your skills

Marine engineering brings together technical knowledge, skilled craftsmanship, innovation and practical problem-solving.

At Mainstay, you will have the opportunity to learn from experienced colleagues, develop specialist expertise and build skills that can support a long-term career.

Specific benefits and arrangements may vary depending on the role but our employment packages includes:

  • Competitive salaries.

  • Workplace pension.

  • Group life insurance.

  • Personal and professional development opportunities.

Live and work in Pembrokeshire

A career should work for your life, not just your CV.

Mainstay is based in Pembroke Dock, giving our team the opportunity to build rewarding careers while enjoying everything Pembrokeshire has to offer.

The area combines a strong maritime and engineering heritage with an exciting future in marine energy. It is also home to 186 miles of coastline, award-winning beaches, water sports, outdoor activities and more affordable housing than many major UK employment centres.

It is a place where you can take on challenging, nationally significant work and still make the most of life outside it.

A place to build your future

Mainstay has ambitious plans for the future.

As the business grows, we want to develop a strong pipeline of skilled people who can grow with us. That means creating opportunities for experienced professionals, developing our existing team and helping a new generation discover careers within the marine sector.

We want Mainstay to be recognised not only for the quality of its engineering, but as a place where people can build meaningful, sustainable careers by the coast.

The marine industry is changing, and Mainstay is helping move it forward.

Our teams work on projects that support transport, industry, infrastructure and the transition towards cleaner marine energy. From workboats and specialist vessels to renewable energy technology, every project brings a new challenge and a new opportunity to make a difference.

Help us shape the future of marine engineering with an exciting career with Mainstay Marine - you will be part of something bigger and helping to build what comes next.

At Mainstay, your work can help to:

  • Create vessels and marine structures built for demanding environments

  • Support the growth of marine renewable energy

  • Solve complex engineering and production challenges

  • Turn designs and ideas into something real

  • Develop specialist skills that can shape your future

  • Strengthen the future of marine engineering in Wales

A range of technical, practical and project based disciplines:

  • Naval architecture and design

    Help turn ideas, specifications and complex requirements into safe, practical and effective marine solutions.

  • Mechanical and electrical engineering

    Work across vessel systems, equipment, installations, maintenance and repair.

  • Project management

    Coordinate people, programmes, customers and technical requirements to keep complex marine projects moving.

  • Welding and fabrication

    Build and repair high-quality steel and aluminium vessels, structures and components.

  • Vessel fit-out

    Help transform a fabricated structure into a complete, functional and finished vessel.

  • Mechanical and electrical installation

    Install, test, maintain and repair the systems that keep vessels and marine equipment operating.

Inspiring a new generation

Marine engineering offers exciting opportunities for people who enjoy designing, building, solving problems and seeing their work make a real impact. From our home in Pembrokeshire, we want to help more young people discover the range of careers available across the marine industry.

By working with schools, colleges and education partners, we can bring the industry to life and create clearer routes into future employment.

A site visit, work placement or first conversation could be the beginning of a rewarding career.

  • Careers talks and industry events.

  • Site visits and yard tours.

  • Work experience and placements.

  • Apprenticeships and practical training.

Graduate programme

Start your career by applying what you have learned to ambitious, real-world marine engineering projects.

Our graduate programme will give university leavers the opportunity to learn from experienced professionals, develop specialist expertise and gain exposure to different areas of the business.

Based in Pembrokeshire, you can build your career while enjoying the lifestyle, coastline and sense of community that make Pembrokeshire such a distinctive place to live.

The programme will be designed to provide a strong foundation for long-term development and progression with Mainstay.

  • A structured graduate development pathway.

  • Experience across live engineering projects.

  • Mentoring from experienced professionals.

  • Technical and professional development.

  • Potential relocation and settling-in support.

Current Vacancies

Bring your experience to a business helping shape the future of marine engineering. We offer skilled professionals the opportunity to work on varied, technically challenging projects across vessels, marine infrastructure and renewable energy.

You will join a practical, collaborative team where specialist knowledge is valued and everyone contributes to the finished result. Whether you are looking for your next challenge or a long-term career move, Mainstay offers the chance to make a meaningful impact from our base in Pembroke Dock.

  • Naval architecture and design.

  • Mechanical and electrical engineering.

  • Project and production management.

  • Welding, fabrication and vessel fit-out.

  • Installation, commissioning, maintenance and repair.