Commercial Officer in Portsmouth

Job Title: Commercial Officer Location: HM Naval Base, Portsmouth (HMNBP) Service Area: Commercial – Service Delivery Hours of Work: 37 Per week Contract Type: Permanent Salary: £32,500 - £37,500 What you will be doing: You will work as part of the team, supporting the delivery of Maintenance and Alongside Services within a highly dynamic, operational, and client-facing environment at HM Naval Base Portsmouth. * Supporting the Commercial Manager, assisting in the day-to-day commercial management of Maintenance and Alongside Services, ensuring that activities are delivered in accordance with contractual requirements under the FMSP contract. * Supporting the administration and management of service-related contracts, including the review of work orders, monitoring compliance with contractual obligations, and ensuring effective commercial controls across reactive, planned, and project-based maintenance activities. Additionally, supporting subcontractor performance monitoring and reviewing applications for payment to ensure accuracy and compliance. * Validating cost capture, supporting the development of forecasts and budgets, and ensuring that expenditure aligns with authorised funding and contractual entitlements. * Supporting the provision of information required for reporting, audits, and performance reviews, ensuring that contractual obligations are met and clearly evidenced. * Support the administration of change control processes associated with Maintenance and Alongside Services. What you will bring: * Commercially focused and driven thriving in a fast-paced, operational environment. Strong commercial mindset, with the ability to balance value for money, contractual compliance, and service delivery performance. * Comfortable working both independently and as part of an integrated team, building strong relationships across operational, commercial, and client interfaces. * Attention to detail is essential, as is the ability to manage multiple priorities while maintaining accuracy and governance. * Knowledge and experience of Terms & Conditions * Professional certifications such as WCC Foundation or CIPS are desirable but not essential About you: * You’ll have a solid understanding of commercial, quantity surveying, or contract management principles within an infrastructure or engineering environment. * Be confident in supporting cost control activities and contract administration 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 Friday 19th 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