Mechanical Fitter – Steam

Job Title: Mechanical Fitter – Steam

Location: HM Naval Base, Portsmouth (HMNBP) 

Service Area: Service Delivery  

Hours of Work: 37 Per week 

Contract Type: Permanent  

Salary: Up to £38,600 

What you will be doing:  

You will be part of the Operations and Maintenance Team, and play a key role in carrying out both planned and reactive maintenance whilst ensuring full compliance and Safe to Operate capability.  

• Safe and professional mechanical planned and reactive maintenance on steam plant rooms and network. 

• Installation and replacement of pipework to current PSSR reg’s.  

• Carry out basic mechanical fault finding and rectification. 

• Completing all Point of Work Risk Assessments (PoWRA) before any Task is started and all required PPE is worn and in good condition. 

 What you will bring: 

• Experience and knowledge in industrial pipe fitting. 

• Competent in using threading machine and similar tooling. 

About you: 

• Experience in working with technical specifications and have a good understanding of safe systems of work. 

• Knowledge and application of Health and Safety best practices 

You’ll get: 

• 25 days holiday plus bank holidays  

• Holiday purchase scheme, following successful completion of probation period 

• Early finish on a Friday 

• Discretionary company bonus scheme  

• Enhanced pension scheme – employee contribution 4% and company contribution 6%, or you can increase your contribution to 6% and company contribution will increase to 10% 

• Life assurance x 4 (subject to scheme T&C’s) 

• Access to our internal benefits and discounts programme for all colleagues 

• Cycle to work scheme 

• Group income protection 

• Flexible parental benefits (if applicable) 

• Free parking onsite 

• Access to our Internal employee assistance network, giving you the opportunity to reach the heights of success within your new position. 

• Continued professional career development 

• Kudos reward opportunities (internal achievements scheme) 

• Occupational Health & Wellbeing Services 

• Discount off entry into the Historic Dockyard 

Application process: 

Applications are urged to apply prior to the advertising closing date Monday 22nd June 2026  

Background checks & security 

Please note that due to the nature of the site we are based on and the work carried out, once offered we carry out a number of pre-employment checks which include UKSV clearance applications – you will need to be eligible for this and willing to go through the process.  For more information, please speak with the Talent & Recruitment team. 

About us: 

At KBS Maritime, we’re not just another company – we’re an exciting and dynamic joint venture between industry leaders BAE Systems and KBR. Our team is dedicated to providing Asset Management, Infrastructure Management, Energy Solutions and Alongside Services at His Majesty’s Naval Base Portsmouth (HMNBP), the beating heart of the Royal Navy. 

With almost two-thirds of the Royal Navy’s surface ships stationed at HMNBP, working with KBS Maritime means being at the forefront of innovation and progress. We operate in a unique and fascinating environment, with a mix of historic dockyards and cutting-edge infrastructure that’s unlike any other. 

By delivering state of the art solutions to the Royal Navy, KBS Maritime offers the chance to work on projects that make a real difference to the safety, security, and sustainability of the UK’s National Defence and Security. But it’s not just about the work – at KBS Maritime, we believe in the value of our people. We have the ethos of a small business, which means we value and empower our team members to succeed. 

KBS Maritime is committed to building a diverse workforce and fostering an inclusive workplace. We welcome applications from individuals of every social or cultural background, age, gender, ability, sexual orientation, and belief.   

We will make reasonable adjustments to the recruitment process to accommodate any disability.  In the first instance, if you require this job advert in an alternative format, or require any assistance, please contact us.