Interim FP&A Lead

Job Title:
Interim FP&A Lead
Location:
Cape Town CBD (on site)
OR
London (remote)
Standard Hours:
UK-Aligned
Type:
Interim / contract. Initial term of 6 months. Possible extension of up to 3 months to overlap with permanent hire.
Why this role exists
OneDome is a UK property and mortgage group that has grown quickly through a series of acquisitions. The group now spans mortgage and protection broking (employed, self-employed and network models), specialist finance, wealth management and home-buying services, across around 15 UK legal entities.
Finance has largely built a new group operating forecast (monthly, entity-level plus consolidation, three-statement model). The model exists - what does not yet exist is the FP&A function around it. There is no regular reforecast cadence, no board-approved budget that the business is managed against, and actuals are not yet compared to or reported against forecast or budget.
The Interim FP&A Lead will own the operating forecast, finish its build-out, operationalise it, run the 2027 budget through it with the business, and hand over a documented, working FP&A process to a permanent hire.
The VP Finance will retain ownership of the long-range plan and all board and investor-facing work; this role is the engine room. You will work alongside and closely with the Finance Manager and broader finance team who cover accounting, financial operations and external compliance/reporting.
What you will own and deliver

1. The operating forecast model

Take ownership of the group operating forecast as the single source of truth for short-range, detailed planning, reconciled to actuals, and producing outputs that can feed the long-range plan.
Prioritise and complete the outstanding build items, including working with CRM data to inform revenue drivers.

2. A working FP&A rhythm

Establish and run the monthly cycle including actuals-versus-forecast analysis, and reforecast cycle covering multiple scenarios as appropriate.
Materially contribute to establishing, delivering and improving monthly management/board reporting.

3. Ownership across the business

Help establish business owners for planning assumptions and get agreement / buy-in on assumptions and targets from those who will deliver them.
Run review sessions with budget holders; challenge assumptions constructively and record decisions.

4. The FY27 budget

Design and run the FY27 budget process end to end before the end of the year (31st December year-end). This would include planning / setting the timetable; project management; getting, reviewing and challenging input from the business; and facilitating review and approval by group management/board.

5. Documentation,

handover and the next phase
Document the model, monthly cycle / reforecasting process, and budget process as you go, so that a permanent FP&A hire can pick them up with minimal overlap.
Support the permanent hiring process as appropriate.
Help the VP Finance define the target (TO-BE) state for the next phase of FP&A, including process and tooling (tooling implementation is not expected within this engagement).
What we are looking for
Essential
Extensive FP&A experience
including: 3 statement, multi-entity (and consolidation), multi-scenario modelling; extensive revenue forecasting; getting input from business stakeholders; forecast/budget process management; variance analysis and management reporting.
Played a material part in
establishing FP&A. You have helped take a business a meaningful distance along the journey of establishing FP&A, which might include: a working forecast cadence, a budget the business is managed against, business ownership of numbers, or role design and process improvement across FP&A. Ideally in a start-up, scale-up or acquisitive group where the starting data was imperfect, with a track record of improving processes rather than just running them.
Ensured business
ownership. You have ensured non-finance leaders own their assumptions and numbers, run budget-holder sessions, and held the line on challenge without needing the finance lead or CEO in the room.
Modelling and data discipline.
Advanced Excel and financial modelling with strong control conventions / approach. Also comfortable working with system extracts to understand, transform and use data using appropriate tools, and comfortable using AI assistants as part of a modelling and analysis workflow while aware of their failure modes.
Concise communicator with structured approach.
Clear, concise and professional in writing and in meetings, including with senior stakeholders. Documentation and handover are part of how you work, not an afterthought.
Time to
impact. Available to start in October at the latest; able to commit to six months; self-directed, fast, comfortable with ambiguity, proactive and picks things up quickly.
Desirable
Owned a complex model built by someone else.
You have taken ownership of a complex financial model you did not build, understood it quickly, and improved and extended it without breaking it.
Mortgage or protection intermediation experience
(procuration fees, commission and clawback, employed, self-employed adviser and network models), or similar sector experience; experience with driver-based operating models for transaction- or funnel-driven revenue.
System implementation
: Experience choosing, implementing and/or using FP&A tooling, or defining the target state for it.
Qualified accountant
(ACA, ACCA, CIMA or equivalent).
About OneDome
OneDome
is a UK-based
housing and fintech technology platform
building an
AI-powered platform
to simplify life’s biggest financial decisions — from buying a first home to building and protecting long-term wealth.
The platform brings together property discovery, mortgage origination, legal and transaction services, insurance, and financial planning into a single, end-to-end digital experience. OneDome’s flagship
HomeBuyer Service
reimagines home ownership as a retail-style product, bundling everything required to purchase a home into one transparent, fixed-price offering. Beyond home purchases, the platform supports customers across the full lifecycle of home ownership and personal finance.
OneDome operates at scale, working with a nationwide network of over 500 mortgage brokers and arranging approximately
$1.4 billion in mortgage volume per month
,
positioning the company among the largest housing and mortgage platforms in the UK.
The company is
profitable
and has been recognised for rapid, capital-efficient growth, including being ranked the
4th fastest-growing fintech
and
17th fastest-growing technology company
by the
Deloitte Fast 50
in 2025, and the
6th fastest-growing tech company
by the
Sunday Times Tech 100
in 2026.
Backed by Channel 4 Ventures and family offices across the UK, Saudi Arabia, the United States, and Australia, OneDome is building the next generation
housing and fintech super-platform
, replacing fragmented, manual processes with a modern, data-driven, AI-enabled consumer experience.