You will stand up and oversee the operational foundations while owning three things that go well beyond standard controllership and are the reason this role matters: the financial model and corporate finance that go to founders, investors, and lenders; the accounting and debt structuring behind a CAPEX-heavy operating model; and, most distinctively, the usage-based pricing model that turns physical capacity into customer cost.

Key Responsibilities

• Own the operational core end to end, working through and getting the best from the outsourced accounting partner: month-end close, management accounts, payroll, statutory accounts, the first audit, and the R&D tax position.
• Take ownership of the financial model, scenario planning, and the numbers that go to the co-founders, investors, and lenders.
• Run the cap table through SAFE conversion and into the priced rounds that follow.
• Account for a CAPEX-heavy operating model (depreciation policy, asset accounting, and vendor contracting), and structure and manage the venture and infrastructure debt that funds it, sequencing drawdown to keep the cash position clear.
• Fold government grant and other non-dilutive funding into the same capital picture.
• Build the underlying cost model, stress-test the current usage-based pricing hypothesis, take it to early customers, and operationalise it as the commercial pricing system connected to real billing and revenue recognition.
• Establish a clear monthly rhythm and make the business one whose finances can be explained in five minutes.
• Position the finance function for the next raise: clean numbers and defensible unit economics that investors, lenders, and customers all understand.

Essential Experience

• A track record of building (ideally from scratch) or rebuilding a finance function end to end, typically six or more years of progressive finance experience including a senior finance role at a venture-backed or capital-intensive growth company.
• Strong FP&A ownership: building and owning the financial model, scenario planning, investor updates, and partnering with an executive team on commercial and fundraising decisions.
• Direct experience of CAPEX-heavy operating models: depreciation, asset accounting, vendor contracting, and the cash dynamics of significant up-front spend.
• Corporate finance and debt: cap table mechanics, SAFE conversion, and structuring or managing venture or infrastructure debt against a capital programme.
• Direct experience of usage- or capacity-priced commercial models: cost-to-serve modelling, pricing design, revenue recognition under usage rules, and the operational link between billing and product.
• A background in a capital-intensive, usage- or capacity-priced infrastructure business (compute, cloud, data centres, robotics, energy, telecoms, or similar)
• Comfortable personally owning controllership through smart outsourcing, contracting, and tooling rather than by building a team, at least through the first year, and energized by automating the day-to-day so more of your time goes to strategy.

Desirable Experience

• Qualified accountant (ACA / ACCA / CIMA or equivalent) preferred.
• Designing or operationalising token-based, unit-based, or otherwise usage-quantified pricing.

Salary

Highly competitive - above market rate with generous options

Location

London, hybrid with regular time in person on site

Start Date

ASAP / flexible, considering all notice periods

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.