Interim FP&A Manager | Household-Name Consumer Marketplace

Interim FP&A Manager | Household-Name Consumer Marketplace | Remote Harmonic are delighted to be partnering with a fast-growing technology business to find an Interim FP&A Manager for a project central to their 2027 planning. The Client A unicorn-status, VC-backed technology scale-up with a global consumer marketplace, serving both B2C and B2B customers. The finance function has scaled fast and is now modernising how the business plans and budgets, moving OPEX onto a self-serve model in a modern cloud FP&A tool ahead of the 2027 cycle. The Role You will own the OPEX budgeting and forecasting cycle end to end, reporting to the Finance Business Partner. That means running 1:1s and group sessions to get budget holders comfortable owning their own numbers in the new system, then staying in the room with them: challenging inputs that don't stack up, chasing deadlines, and catching problems early before they hit the final numbers. You'll stay involved with stakeholders across the full cycle, from the first onboarding sessions right through to the numbers landing. Key Responsibilities • Run 1:1 and small-group sessions with budget holders across departments, onboarding them onto the new self-serve OPEX process • Coach and support budget holders as they input their own forecasts, troubleshooting issues as they arise • Run recurring check-ins against the budget calendar, tracking progress and flagging concerns • Act as the main point of contact between FP&A and the business throughout the first cycle • Partner with the wider FP&A team on related workstreams as they come up Essential Experience • Qualified accountant • Several years in FP&A, with experience managing budget holders and senior stakeholders directly • Proven experience running an OPEX budgeting or forecasting cycle end-to-end, from stakeholder input through to final numbers. • Strong project management skills, including running several workstreams and deadlines at once and driving accountability • A partnering mindset Desirable Experience • Background in a VC or PE-backed business, or a wider tech scale-up • Hands-on experience with a modern FP&A planning tool (Abacum a plus, not required) Package Day Rate: £450-550 outside IR35 Location: Remote Contract Length: 6 months Start Date: ASAP At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.