Job: Commercial Manager Status: Fixed term for a 12 month period Location: Hybrid – Portland, Dorset (Osprey Quay)
We are seeking an experienced and commercially astute Commercial Manager to join G3 Systems at our Osprey Quay site in Portland, Dorset. This is a pivotal role responsible for leading the commercial and contractual management of assigned projects and portfolios, ensuring effective risk management and full contractual compliance throughout the contract lifecycle. You will play a key role in supporting the delivery of the G3 Systems Strategic Plan, protecting the company’s commercial interests while enabling successful, value-driven outcomes for our clients.
Lead commercial activities across assigned projects and portfolios Act as a key point of contact for standard commercial documentation (e.g. Ensure compliance with contractual terms, company policies, and relevant regulations Identify, assess, and mitigate commercial and contractual risks Lead change control processes, including variations, claims, and negotiations Support bid and proposal development, including commercial strategy and risk reviews Provide expert commercial advice to Project Managers, Senior Leadership, and stakeholders Build and manage strong commercial relationships with clients, partners, and key suppliers Prepare and present commercial reports for senior management Support dispute resolution and claims management where required Oversee company insurance policies, including annual renewals
At G3 Systems, we deliver complex deployable infrastructure solutions in some of the world’s most challenging environments, supporting defence, government, and commercial clients.
This role offers the opportunity to operate at the intersection of strategy and delivery, giving you real influence over project outcomes, commercial governance, and business performance. You’ll work within a collaborative, agile organisation where your expertise directly shapes decision-making and long-term success.
Degree in Commercial Management, Quantity Surveying, Law, Business, or a related discipline Proven experience in a Commercial Manager or Senior Commercial role Strong knowledge of contract law and standard forms of contract (e.g. Able to manage multiple projects and competing priorities effectively Proficient in Microsoft Office (Excel, Word, PowerPoint)
We value different perspectives and are committed to building an inclusive team.
Competitive salary starting at £47.5k per annum, with potential to offer more for candidates with relevant experience~25 days annual leave~ Flexible 37.5-hour working week~ Single Person Private Medical Insurance including Dental Cover provided by BUPA~ Life cover (3.5x salary)~ Defined Pension scheme~ Salary sacrifice schemes (including eBike and electric vehicles)~ This role can consider a hybrid basis, with time split between home working and our Portland, Dorset office at Osprey Quay….