Finance Business Partner

Job title: Finance Business Partner

Location: London. We expect team members to spend a reasonable portion of their time in the office to support collaboration, while also offering flexibility for remote work.

Salary: £51,500 - £72,000

Team: Corporate Finance

Reporting To: Corporate Finance Senior Manager

Closing date for applications: We’re reviewing applications on a rolling basis and will close the role once we’ve found the right person - early applications are encouraged.

This role is based in London, UK and requires existing right to work in the UK.

At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship.

Kaluza reimagines energy to bring net-zero within everyone’s reach. Our intelligent platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. 

From automating and simplifying core operations including billing to create a lower-cost, higher-engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win-win-win outcomes for customers, suppliers and the energy system. 

At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen relationships, and accelerate progress. We’re focused on shaping thoughtful, team-driven approaches that support both business impact and individual well-being.

We also prioritise meaningful company-wide gatherings like our annual conference and end-of-year celebrations, that bring us together to align, connect, and celebrate.

What will I be doing?

As Finance Business Partner, you’ll work closely with our Product & Technology leadership to guide financial decision-making, ensure spend is aligned with priorities, and provide the insights needed to support growth. This is a hands-on role where you’ll build models, deliver analysis, and act as the go-to finance contact for Product & Tech.

Your responsibilities will include:

• Partnering with Product & Tech executives to plan, track, and manage budgets.
• Building and maintaining forecasts, anticipating requirements, and highlighting risks and opportunities.
• Reviewing and challenging spend requests and business cases, providing clear financial recommendations.
• Producing financial models and scenario analysis to support investment decisions and strategic initiatives.
• Preparing concise reports, analysis, and board-level materials for senior stakeholders.
• Translating financials into actionable insights for non-finance stakeholders.
• Working with the wider finance team to align Product & Tech plans with company strategy.

About You 

Ideally you’ll have/be

• Qualified accountant (ACA/ACCA/CIMA) with a strong foundation in FP&A, business partnering, or commercial finance, ideally with 2–3 years’ post-qualification experience.
• Strong financial modelling and analytical skills, confident in Excel and scenario planning.
• Experience working with non-finance stakeholders, ideally within product, technology, or commercial functions.
• A clear and effective communicator who can explain financial implications to diverse audiences.
• Proactive, adaptable, and comfortable working in a fast-moving, lean team environment.
• Exposure to growth businesses or tech environments (a plus, not essential).

What will set you apart 

• Demonstrated ability to challenge and influence decision-making and challenge stakeholders constructively.
• A track record of turning financial analysis into real business impact (e.g. helping shape investments, product launches, or strategic initiatives).
• The confidence to work independently while collaborating effectively across teams.
• A commercial mindset, with the ability to balance detail with the bigger picture.

Kaluza Values

Here at Kaluza we have five core values that guide us as a business: 

We’re on a mission, We build together, We’re inclusive, We get it done, We communicate with purpose.

Read more about our values over on our careers site.

From us you’ll get

• Pension Scheme
• Discretionary Bonus Scheme
• Private Medical Insurance + Virtual GP
• Life Assurance
• Access to Furthr - a Climate Action app
• Free Mortgage Advice and Eye Tests
• Perks at Work - access to thousands of retail discounts
• 5% Flex Fund to spend on the benefits you want most
• 26 days holiday
• Flexible bank holidays, giving you an additional 8 days which you can choose to take whenever you like
• Progressive leave policies with no qualifying service periods, including 26 weeks full pay if you have a new addition to your family
• Dedicated personal learning and home office budgets
• And more…

Even better? You’ll have access to these benefits from day 1 when you join.

We want the best people

We’re keen to meet people from all walks of life — our view is that the more inclusive we are, the better our work will be. We want to build teams which represent a variety of experiences, perspectives and skills, and we recognise talent on the basis of merit and potential.

We understand some people may not apply for jobs unless they tick every box. But if you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you.

Find out more about working in Kaluza on our careers page and LinkedIn.
You can also find our Applicant Data Protection Policy here.