Head of FP&A

Would you like to be instrumental in enabling the next generation of semi-conductors?

Are you comfortable working in a fast paced, scale up environment? If so, we can offer you a unique opportunity to step into a newly created Head of FP&A role at Infinitesima, building a finance capability that directly shapes how we scale. You’ll be the CFO’s analytical partner, owning the models, the insights, and the story behind the numbers. You’ll work across the business, turning complex data into decisions that actually drive outcomes.

Reward and Benefits

• £80,000 to £90,000 depending on experience
• 25 days annual leave
• death in service and private health care benefits
• personal pension contributions of 4% with salary sacrifice
• a generous EMI Share scheme

About the role

This is a hands-on, high-impact role where you are building and owning the financial planning and analysis function from the ground up. You are partnering closely with the CFO while working across engineering, manufacturing, supply chain, commercial, and HR teams. You are not waiting for data; you are actively shaping it, challenging it, and turning it into clear, decision-ready insight.

Typical responsibilities

• Owning and delivering monthly forecasts, clearly linking risks to cash runway and business outcomes
• Building and maintaining driver-based financial models across headcount, revenue, supply chain, and capital projects
• Owning revenue forecasting, creating a pipeline-backed view the board can rely on
• Partnering with commercial teams on pricing and deal structure, making cash implications visible upfront
• Working with engineering and manufacturing teams on project costs and capital planning
• Promoting visibility in supply chain commitments and cash flow impacts
• Partner with colleagues across the globe as the company continues its international expansion
• Producing board-quality financial materials and supporting investor-facing outputs
• Translating management accounts into forward-looking insight — what happened, why it matters, and what’s next
• Implementing KPI-driven reporting that tells the story of the business, not just the numbers

Who we are looking for

To succeed as a Head of FP&A, we do need you to have demonstrable experience of working in environments where processes are being built, not inherited. Candidates from a scale-up background would be ideal.

• Accountancy Qualified (ACA, ACCA or CIMA) with strong FP&A experience
• Building and owning financial models in complex business environments
• Partnering effectively with non-finance stakeholders, influencing engineers, scientists, and commercial teams
• Operating with autonomy, making judgement calls and owning outputs
• Communicating financial insights clearly and concisely

Nice to have

• Supporting a fundraise or building investor-facing financial models
• Familiarity with manufacturing or supply chain finance
• Experience in investor-backed businesses and understanding investor expectations
• Commercial finance within long sales cycles or capital equipment environments

Education / Qualifications

Either a relevant finance qualification or equivalent experience gained through a clear professional pathway.

Location and work pattern

All new UK team members are asked to work on site here at Abingdon during their first three months with us. We offer flexible, hybrid working where possible upon completion of probation.