Assistant Financial Controller

Octopus Energy

4300

Sheffield (GB)

Posted on: 2026-06-12

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

We can't hire everyone… but we can help them shine somewhere brilliant.

At Octopus, we're lucky to attract some incredibly talented humans. And while we can’t bring every talented person into our team, we can help them land somewhere that’s just as mission-driven. That’s why we’re sharing opportunities from MOPO; a company we’ve proudly backed through a strategic investment.

About MOPO...

MOPO is on a mission to enable renewable energy access in underserved markets. Already operating in Nigeria, DRC, Sierra Leone and Liberia, their solar power stations distribute energy through proprietary MOPO Batteries managed by a network of local agents. Their model is already powering thousands of homes and small businesses—eliminating fossil fuel use and enabling livelihoods. With backing from Octopus Energy, British International Investment, and Norfund, MOPO is scaling rapidly and is positioned to transform energy access and e-mobility across the continent.

Activities

Managing Accounts Payable and Receivables, overseeing the process of ensuring all company bills are paid on time and all incoming payments are received and recorded accurately.

Conducting Monthly/Quarterly Financial Closing Across the Group, coordinating and finalising the company's financial activities at the end of each period to ensure accurate and timely financial statements.

Preparing Quarterly Financial Reports for Partners, compiling and analysing financial data to produce detailed reports that provide insights into the company’s financial performance and are shared with business partners.

Managing Employee Expenses and Prepayment Cards, overseeing the issuance, usage, and reconciliation of company prepayment cards, as well as processing and reimbursing employee expense claims in a timely and accurate manner.

Updating ERP System with Bank, Supplier, and Client Transactions, regularly entering and verifying financial transactions, to ensure that all financial records are current and accurate.

Support in overseeing Subsidiary Finance Teams, respond to adhoc requests from subsidiary teams and help in improving processes.

Fixed Asset and Inventory Management, working with the rest of the team to accurately manage movement of inventory and Fixed Assets.