Careers at Mainstay
Join us in shaping the future of marine engineering.
Build a career that takes you somewhere.
From our home in Pembroke Dock, Mainstay is helping shape the future of marine engineering. We design, build and repair steel and aluminium workboats, specialist vessels, marine renewable energy devices and infrastructure that supports life and industry on the water.
The projects are real. The challenges are complex. And the work our people do has a lasting impact. We look for talented, practical and ambitious people who want to build their skills, take pride in what they create and play a part in the marine industry of tomorrow.
Great engineering is built by great people.
Every person at Mainstay plays an important role, whether they are designing, fabricating, installing, managing or bringing a project together.
Our teams combine experience, technical expertise and practical problem-solving to turn ambitious ideas into vessels, structures and solutions that perform in the real world.
Whether you are taking your first step into the industry, developing specialist skills or bringing years of experience, you will have the opportunity to contribute, keep learning and work alongside people who care about doing things properly.
This is more than a place to work. It is a place to build something you can be proud of.
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
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Naval architecture and design
Help turn ideas, specifications and complex requirements into safe, practical and effective marine solutions.
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Mechanical and electrical engineering
Work across vessel systems, equipment, installations, maintenance and repair.
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Project management
Coordinate people, programmes, customers and technical requirements to keep complex marine projects moving.
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Welding and fabrication
Build and repair high-quality steel and aluminium vessels, structures and components.
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Vessel fit-out
Help transform a fabricated structure into a complete, functional and finished vessel.
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Mechanical and electrical installation
Install, test, maintain and repair the systems that keep vessels and marine equipment operating.
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.
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.
Register your interest to find out more.
College looking for an inspirational session or graduate looking for more information about our graduate programme? Click to register and we’ll be in touch with more details and next steps.