Junior Management Accountant (12 month FTC)

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