Finance Adviser in London

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, with 10 businesses working across 4 continents to tackle energy transformation at nearly every front.

Currently, we manage a global portfolio of over £8 billion in renewable energy assets. We have a fantastic opportunity for a Strategic Finance Associate to join the OEGen team. This role focuses on managing the preparation of monthly management accounts for OEGen group entities, supporting strategic finance initiatives, and liaising with various stakeholders across the subsidiary entities. This position requires an average of 3 days in the office per week.

What You'll Do

• Lead the preparation, review and analysis of OEGen cash flow actuals and forecasts, including capital call requests, cash flow reporting and reforecasting.
• Regularly engage with department heads and other senior Group stakeholders on a range of financial matters.
• Coordinate the annual budget process across OEGen assets.
• Support the OEGen Strategic Finance Lead in identifying and managing economic trade-offs across the OEGen businesses, including growth, returns and liquidity, through the capital allocation process.
• Monitor actual performance against plan, identifying key drivers of variance and working with the business to develop appropriate action plans where required.
• Prepare and coordinate monthly financial reporting, quarterly strategic Board packs and other strategic materials for OEGen Group.
• Review and challenge financial deliverables provided by External Asset Managers, including management accounts and cash flow actuals and forecasts.
• Liaise with the external audit team, responding to queries and supporting the efficient delivery of the year-end audit process.
• Work closely with international subsidiaries to ensure the consistent application of accounting policies, processes and procedures.
• Drive continuous improvement in financial analysis, reporting tools and processes through best-practice sharing and knowledge exchange across Finance teams.

What You'll Need

• Qualified accountant (ACA preferred).
• Experience or knowledge in financial planning and analysis (FP&A), including building and maintaining financial models.
• Familiarity with financial reporting and month-end processes (accounting degree not required).
• Strong analytical skills with the ability to manage and interpret complex data.
• Experience or exposure to board and investor reporting and financial presentations.
• Knowledge of capital structure and fundraising processes is a plus.
• Ability to work effectively in a fast-paced, dynamic environment.
• Strong communication skills, both written and verbal, with attention to detail.
• Confidence to suggest improvements to systems and processes as the company continues to scale.
• Strong attention to detail and organisational skills.

Why else you'll love it here

Where people work with autonomy, alongside a wide range of amazing co-owners, on projects that break new ground. 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.

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!