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  3. Assistant Financial Controller
Octopus Energy logo

Assistant Financial Controller

Octopus Energy
Sheffield (GB), United Kingdom
Full Time
Posted June 12, 2026
£27k - £29k· Est.
Energy Management
Apply Now

Application opens on company website

Job Description

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.
Accountabilities
• Make sure suppliers are paid within the required timeline.
• Be able to complete grant reports with all supporting documentation within the agreed timeframe.
• Make sure bank transactions are regularly processed and up to date.
• Be able to complete quarterly checks in a timely manner to ensure accurate data for the reports.
• Make sure staff expenses through prepayment card, cash or personal card are dealt with timely and accurately accounted for in accounting software
• Deal in a timely manner with subsidiary finance team requests
• To ensure accurate recording of Fixed Assets and treatment of inventory.

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