Finance Lead High-Growth Tech London / Hybrid

Finance Lead High-growth Tech London / Hybrid

Harmonic is partnering with one of the UK's most interesting mission-driven technology businesses, a spinout from a well-known start-up incubator that has scaled to £10m revenue and 100 headcount, growing at approximately 50% year-on-year.

The business helps individuals and families live the lives they actually want. By combining high-quality human advice with proprietary technology, they give their clients the tools to understand their goals, model their future, and build plans that are genuinely centred around what matters to them. It's a business with real purpose and a growing base of clients whose lives have been changed because of it.

This is their first full-time Finance Lead hire, and it's deliberately not a "maintain what we have" role. They need a builder. Someone who can own the BAU operations, yes, but who also has the vision and capability to architect the finance function for the next stage of growth: the modelling, the infrastructure, the AI-enabled processes, and the fundraising readiness. You will work directly with the founders and have genuine influence over how the business scales.

Key Responsibilties

• Own end-to-end financial operations: bookkeeping, management accounts, statutory reporting, payroll oversight, and compliance
• Take full ownership of the financial model: rolling forecasts, scenario planning, unit economics, finance business partnering and runway analysis
• Evaluate and implement the finance stack of the future, including an AI tech stack and automation tooling
• Prepare the business for future capital raises: clean cap table, investor-ready reporting, and financial due diligence
• Manage compliance, audit, and tax matters including R&D tax credits and EMI/EIS
• Act as a strategic partner to the founders and leadership team, turning financial data into insight that drives decisions
• Ad hoc analysis and strategic projects, such as team planning and overseeing a part-time bookkeeper

• ACA, ACCA, or CIMA qualified with meaningful post-qualified experience
• Background in a high-growth start-up or scale-up: someone who has built, not just maintained
• Strong financial modeller, comfortable building and owning a 3-year plan
• Genuinely AI-curious and working in a tech-forward way
• Exposure to a fundraise at Series A/B level or equivalent preferred
• Mission-driven: you care about the work the business does, not just the role itself
• Preference for candidates from a Tech or Fintech background

Package:

Salary: £90,000 - £120,000

Bonus: Up to 20% (average expectation 10-15%)

Equity: EMI options (typically granted after year 1)

Pension: 6% employer contribution

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.