Finance Data Analyst

Octopus Energy

4300

London (GB), USA

Posted on: 2026-02-05

Category: energy

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Employment type:

Full time

Experience required:

Intermediate

Salary

Salary not provided

About the company:

We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.

That means making power greener, smarter, and more affordable for everyone.

We put customers at the heart of everything we do: with always-fair prices, transparency and outrageous customer service.

We drive system change: with transformative tech to make renewable energy the norm and end global reliance on fossil fuels.

Octopus Energy Group is made up of 10 businesses spanning 6 countries across 3 continents, including: Octopus Energy Retail, Kraken Technologies, Octopus Energy Generation, Kraken Flex, Octopus Electric Vehicles, and the Octopus Centre for Net Zero. More on OEG @ octopusenergy.group

After starting a mere 10 years ago, Octopus is the largest energy supplier in the UK. We’ve built the technology to serve millions of energy customers and handle the billions of pounds worth of customer and third party transactions that this entails. As Octopus has grown, so too has the complexity, variation and scale of our cost base.

As such, we’re looking for a curious, detail-driven part or fully qualified accountant with data skills to help us truly understand, validate, and control our cost base.

This role sits right at the intersection of finance, data, and the wider business; giving you real ownership over how costs flow through the accounts and how they impact our reporting. You’ll work closely with our Finance and Gross Margin teams to build and maintain a robust cost accruals process, partner with other teams across the business to understand how costs arise in the real world, and turn that insight into scalable, automated processes. If you enjoy getting under the hood of complex data, improving controls, and building new processes and systems, this is a role where you can have a big impact.

This is a fantastic opportunity to work at the intersection of finance and data in an award winning team for a high growth business that is at the forefront of the net zero transition.

💚 Why else you'll love it here 💚

• 💰 Wondering what the salary for this role is? Just ask us! On a call with one of our recruiters it's something we always cover as we genuinely want to match your experience with the correct salary. The reason why we don't advertise is because we honestly have a degree of flexibility and would never want salary to be a reason why someone doesn't apply to Octopus - what's more important to us is finding the right octofit!

• 🎉 Octopus Energy Group is a unique culture. An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We were recently named the UK's top company to work for, and we ranked in the top ten in the Sunday Times Best Places to Work 2024. Our Group CEO, Greg has recorded a podcast about our culture and how we empower our people. We’ve also been placed in the top 10 companies for senior leadership

• 🎁 Visit our UK perks hub - Octopus Employee Benefits

If this sounds like you then we'd love to hear from you. 🚀

P.S. Our process usually takes up to 4 weeks, but we’ll always do our best to flex around what works for you. Along the way, you’ll chat with our recruitment team and your Recruiter will help you throughout different stages. Got any burning questions before then? Drop us a message at [email protected] and we’d love to help!

Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential. Need any specific accommodations? Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for comfort and maximum magic!

Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we're looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.

What You'll Do...

Become a subject matter expert in our cost base in the UK, including how these costs are validated and settled. Partner with teams across the business (e.g. Operations, Accounts payable and many others!) to understand how costs work and build this understanding into our validation and accrual process;

Work with Finance and Gross Margin teams to build a robust cost accrual model in order to reconcile and validate our cost base reporting, and identify, report and analyse any associated risks and opportunities on monthly basis;

Build pipelines to automate the entry of invoices into Netsuite from external systems, and partner with teams across the business to build a process for invoice validation;

Work with our Global Retail teams to roll out cost validation solutions globally

What You'll Need...

Fully or part qualified and actively studying towards an accounting qualification (CIMA, ACCA, ACA or equivalent);

Strong SQL and Excel knowledge;

Experience working in management accounts and an understanding of month end accounting, accruals and finance systems (e.g. Netsuite);

Highly data literate and numerate, with great attention to detail - you are able to make sense of lots of data, discover trends and patterns;

Great communicator - can clearly articulate complex technical information to non technical colleagues.

Nice to have but not essential…

Experience working in the energy industry, bonus if you have worked with settlement information before

Ability to code in Python

Experience with building dashboards (eg. in Databricks or Streamlit);

Experience in modern data development, using modelling tools such as dbt, Lakehouses such as Databricks, and collaborative codebases such as git.

We aren’t necessarily looking for someone who is “10-out-of-10” in all these areas, but rather someone who has good experience in most of them, combined with a flexible and enthusiastic approach.

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