Harmonic Finance™ | Certified B Corp
Fractional CFO | Fintech Scale-Up

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Fractional CFO | B2B FinTech Scale-Up | Central London | 2-3 days per week
Harmonic are delighted to be partnering exclusively with a London-based FinTech in their search for a Fractional CFO to work 2-3 days per week.
The Client
Our client has created a platform that is now embedded in the day to day operations of its clients, a base made up of large financial and corporate institutions. The business is founder-led, established, and growing quickly on the back of a product that has become part of how its market works rather than a nice to have.
They are looking for a Fractional CFO to work alongside the founders on a 2-3 day per week basis for an initial six months, with every expectation the engagement continues.
The Role
This is a hands-on fractional engagement reporting directly to the CEO. You will own the finance function end to end: reporting, cash, commercial modelling and the numbers that go in front of the board and investors. Revenue is growing quickly against a small number of large enterprise contracts and the finance function needs to catch up with that. There is an outsourced bookkeeping function to support. The immediate priority is building reporting and forecasting the founders can run the business on, followed by putting the commercial and control foundations in place for the next stage of growth.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Key Responsibilities
- Own the monthly reporting cycle and produce a board pack the founders and investors can rely on.
- Build and maintain the cash flow forecast and drive the operating model against it.
- Take ownership of ARR, retention and unit economics reporting across an enterprise SaaS revenue base.
- Lead commercial modelling on pricing, contract structures and new market entry.
- Manage the statutory accounts, audit and R&D tax credit process with external advisors.
- Put in place the financial controls and processes the business will be measured against at the next raise or transaction.
- Support the founders on investor reporting and fundraising preparation.
- Act as a commercial sounding board to a founding team from a trading rather than finance background.


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Essential Experience
- ACA, ACCA or CIMA qualified.
- Track record as a CFO or FD in a VC-backed B2B software or FinTech business.
- Comfortable operating fractionally: able to land quickly, prioritise ruthlessly and work without a team underneath you.
- Strong commercial modelling and forecasting, with the ability to translate it for a non-finance audience.
- Experience building a finance function from a standing start rather than inheriting one.
Desirable Experience
- Experience taking a business through a funding round or a sale process.
Day Rate: £700-800 per day
Location: Central London, 2 days per week in the office
Contract: Initial six months, 2-3 days per week, with strong likelihood of extension
Start Date: ASAP start (September)
Please feel free to get in touch with Ed Naish for more information (ed.naish@harmonicfinance.com).
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