Recently postedTemporary/CasualFinance

Junior Management Accountant (12 month FTC)

OctoenergyLondon (GB)🇬🇧United KingdomPosted 13 Nov 2026

Quick overview

SeniorityJunior

Employment typeTemporary/Casual

Work modeHybrid

LocationLondon (GB), United Kingdom

RecruitingMicrosoft ExcelAccounts PayableBookkeepingNetSuiteManagement Accounting

Job description

We’re making energy fair, clean, and simple for all using technology.

Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain’s largest energy supplier.

Octopus Energy Group is a global energy transition collective. 10 businesses working across 4 continents to tackle energy transformation at nearly every front. And we constantly push to make energy better. Tirelessly campaigning for fair protections for customers. And building innovative technologies that forge a path to a green energy system.

We’re made up of 10,000+ authentic, committed people working around the world on stuff you’d never expect. We’re united by a shared goal: to drive the global green energy revolution. Read our Spotlight series to meet some of the team.

About Octopus Energy Group Limited:

We’re the central engine powering Octopus Energy Group’s mission to make energy fairer, greener, and simpler across the globe.

As the parent company and operational hub, our multidisciplinary team—spanning strategy, finance, legal, people, and technology—provides the essential infrastructure and rocket fuel the wider Octopus family needs to transform the global energy system.

About the role:

We’re looking for a proactive, tech-savvy, and detail-oriented Junior Management Accountant to join our growing Finance team. Working closely with our Management Accountant, you’ll collaborate with teams across the whole business to turn complex data into crystal-clear management reporting. This is a fantastic opportunity for an ambitious part-qualified accountant looking to accelerate their career in a high-growth, fast-paced tech environment. We’re looking for someone who shares in our Octopus Culture and enjoys problem-solving, thinking laterally and has the ability to self-motivate to get the job done.

What you’ll do:

You'll work alongside the wider finance team, with plenty of exposure to different entities and stakeholders. Day to day, this will include:

Managing core day-to-day bookkeeping, accounts payable, and bank reconciliations to keep our financial operations running smoothly.

Taking ownership of areas of month-end management reporting—preparing workbooks, posting journals, and collaborating with the finance team to deliver results at pace.

Preparing and reviewing balance sheet and intercompany reconciliations, investigating reconciling items, and ensuring differences are resolved cleanly.

Supporting the preparation of year-end financial statements and providing fast, accurate information to make the audit process seamless.

Stepping into ad-hoc projects and new challenges—particularly where processes aren't fully established yet—and building workable solutions.

What you'll need

You’re a part-qualified accountant (ACA, ACCA, CIMA or equivalent) with some hands-on management accounting experience.

You thrive in a fast-paced environment, comfortably managing multiple priorities with strong organisational skills to meet strict month-end and reporting deadlines.

You have an exceptional eye for detail and take pride in delivering accurate reconciliations and journals.

You are a clear, collaborative communicator who builds strong working relationships across diverse teams and stakeholders.

You have the confidence to challenge existing ways of working, identify inefficiencies, and propose practical improvements to systems and processes.

You possess advanced Excel skills, and previous experience with NetSuite is a distinct advantage (but not essential).

Why else you'll love it here

• Wondering what the salary for this role is? Once you're in the interview process 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 named the UK's top company to work for in 2025, and we ranked in the top ten in the Sunday Times Best Places to Work 2026. 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, tell us what you care about, why Octopus feels right and most importantly, bring us the real you! Applying for jobs can be a bit scary so have a nose through some of our tips first 🚀

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 talent@octoenergy.com 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.

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