Interim Finance Director | Fintech Scale-Up

Harmonic Group Ltd; Remote; GBP 125,000 - 150,000; Full time

Job summary

A leading Fintech scale-up in the UK is seeking an Interim Finance Director for a 6-month contract, offering a competitive day rate of £650-800. This remote role focuses on financial stewardship, strategic guidance, and managing a small finance team. Essential qualifications include being a qualified accountant with substantial SaaS finance leadership experience. The position demands strong analytical skills and the ability to deliver board-level reporting and strategic financial insights.

Qualifications

• Qualified accountant with demonstrable experience as a senior finance leader within a SaaS business.

Responsibilities

• Provide financial stewardship and ensure smooth month-end close and compliance.
• Improve finance processes for accuracy and governance.
• Mentor finance team and coordinate workload.
• Own forecasting, budgeting, and cash-flow planning.
• Deliver analysis and strategic financial insight.
• Prepare board-level reporting including KPI analysis.
• Oversee statutory accounting and tax compliance.
• Support capital and fundraising activities.
• Act as liaison for external advisors and investors.

Skills

Qualified accountant

Experience in SaaS finance leadership

Job description

Interim Finance Director | Fintech Scale-Up | Remote

Harmonic is delighted to be working on an exclusive basis with a Fintech SaaS scale‑up, who are on the search for a Finance Director to join on an initial 6‑month contract. The client is open to exploring fractional (3‑4 days per week) as well as full‑time interim.

The Client

Our client is a B2B SaaS Fintech scale‑up that has carved a strong niche within its subsector of software development. Backed by impressive investors with a strong track record in scaling software businesses, the company is primed for further fundraising and a steep growth trajectory.

Reporting directly to the CEO, this role offers an excellent opportunity to shape the company's growth and enhance its operational processes. With a two‑person finance team handling most transactional work and month‑end duties, the focus of this position is on delivering commercial insights, strategic financial guidance, and wider FP&A support. It is ideally suited to a commercially minded Finance Director with strong FP&A and commercial finance experience, particularly within a SaaS environment.

The Duties

• Provide financial stewardship, ensuring month‑end close, internal reporting, payments, controls and compliance run smoothly.


• Improve and refine essential finance processes, enhancing accuracy, strengthening governance and implementing sensible efficiencies that keep the function audit‑ready.


• Guide and mentor the finance team, establishing clear priorities, coordinating workload across FP&A and accounting, and fostering a high‑performing, collaborative environment.


• Own the company's forecasting, budgeting and cash‑flow planning, giving the CEO and broader leadership team clear visibility around financial runway, risk exposure and commercial scenarios.


• Deliver meaningful analysis and strategic financial insight, using data, modelling and scenario planning to inform executive decisions and shape the company's direction.


• Prepare and present polished board‑level reporting, including management packs, KPI analysis and investor updates that convey performance trends with clarity and impact.


• Oversee statutory accounting, tax matters and regulatory compliance, ensuring strong financial governance and timely, accurate fulfilment of all obligations.


• Support ongoing capital and fundraising activities, producing high‑quality financial materials and maintaining constructive dialogue with investors when required.


• Act as the primary liaison for external advisors, auditors, banks and other key partners, ensuring smooth coordination and continuity of service.

What we need to see (essential)

• Qualified accountant.


• Demonstrable experience as a senior finance leader within a SaaS business.

Day Rate: £650–800

Length of Contract: 6 months

Location: Remote (with option to attend office in London)

If you are interested— to be considered for the role please forward your CV.

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.