Head of Finance London, United Kingdom

At Heat Geek, we are tackling one of the UK’s biggest carbon contributors: home heating. Nearly 20% of all UK carbon emissions stems from home heating – and that contribution is even bigger on a global scale. By simplifying a traditionally complex industry and revolutionising the technology used by installers, we’re making low‑carbon heating mainstream. We have already prevented over 1,000,000 kg of carbon from entering our atmosphere as of January 2026, and we aren’t stopping there!

People are at the core of who we are and what we do. From decreasing homeowners’ energy bills to help with the cost of living, to empowering talented heating engineers to perform outstanding installations, to ensuring a greener world for all of us, we believe in the power of what we can all do together. And we need passionate, talented, hard‑working people to be a part of this journey.

Your Mission

Our Heat Geek community is excited to bring a Head of Finance into our team. This person will own and evolve our finance function as Heat Geek scales. This is a hands‑on leadership role: you’ll set the standards, build the processes, guide decision‑making, and develop a high‑performing finance team. You’ll balance strategic oversight with operational detail, bringing clarity, structure, and insight to a fast‑moving business.

If you’re reading this and it resonates with you, we know that you are talented and could do this work anywhere. But we want you to do it HERE, with us, because we need persevering teammates who care about making a real difference in the world.

Financial Operations

• Own the management and documentation of FinOps processes, procedures, and roles, including the company share options scheme.
• Iteratively review and improve finance processes as they are undertaken, ensuring they scale with the business.
• Manage FinOps priorities, projects, tasks, and deadlines.
• Run regular meetings to align BAU and project work across the team, balancing priorities against capacity and advocating for financial process improvements to be built into the technical platform.

Reporting & Analysis

• Produce monthly profit and loss reporting, including insightful analysis against historic and budgeted figures.
• Own balance sheet reporting, including cash, debtor, and creditor reviews.
• Deliver clear, accurate, and timely financial insight to the leadership team.

Planning, Budgeting & Cash Flow

• Lead quarterly budgeting and reforecasting.
• Produce and maintain cash forecasts and runway reporting.
• Support strategic decision‑making through scenario modelling and forward‑looking analysis.

Leadership & Team Building

• Build, mentor, and lead a highly successful finance team.
• Set clear expectations, roles, and development pathways.
• Foster a culture of ownership, continuous improvement, and commercial thinking.

Stakeholder Support

• Act as a trusted financial partner to the CEO, COO and leadership team.
• Support fundraising, investor reporting, and external stakeholders as required.
• Ensure financial controls and governance remain robust but proportionate to a startup environment.

Candidate Requirements

• Qualified accountant (ACA / ACCA / CIMA or equivalent).
• Proven startup or scale‑up experience.
• Comfortable operating in ambiguity and building structure where little exists.
• Strong commercial mindset with excellent analytical skills.
• A genuine desire to build and lead high‑performing teams.
• Practical and detail‑oriented, but able to zoom out to the bigger picture.
• Passionate about Heat Geek’s mission and the transition to low‑carbon heating.

It’s a bonus if you have…

• Experience within a VC backed or private investor‑driven company.
• Experience managing finances for international teams.
• Worked in companies with multiple entities.
• Worked in FinOps and/or process improvement.
• Experience with a marketplace business model.
• Experience with heat pumps, renewable energy, construction, or utilities.

We believe great teams are built from different ways of thinking, learning, and living, and as such, we strive to build an organisation where people can show up as themselves. Even if you don’t tick every box listed above, but are passionate about the work that we are doing and believe that you can make a positive impact here, we’d love to hear from you. So please drop us a message or share more detail in your application!

Ways of Working + Benefits

This is a 3‑day‑in‑the‑office hybrid role where you will work with the team at our office in Sustainable Ventures in Waterloo, Europe's biggest climate tech hub. It's a 5‑minute walk from Waterloo Station and an energising space for anyone working on climate change.

Some of our measurable benefits include:

• £5,000 contribution towards your own heat pump installation.
• Shares in the company, allocated under a tax‑incentivised scheme.
• Salary that’s evaluated regularly, and based on skills, impact, and role scope—not negotiation tactics.
• Private medical & dental insurance.
• Learning and development budget.
• Annual summer retreat.
• Season ticket loan.
• Cycle to work scheme.
• Yoga, run club and social events with other sustainability startups in our co‑working space.

…alongside monthly socials and regular collaboration opportunities with a team that’s passionate, hardworking, and kind.

By submitting your application, you agree that Heat Geek may process your personal data for recruitment purposes in accordance with UK GDPR. If your application is unsuccessful, we may retain your data in our applicant tracking system for up to six months after the role closes to consider you for future opportunities. Your data will be handled in accordance with GDPR data protection laws.