Financial Modeller

On-siteFull Time Mid Level Finance & Accounting

Posted February 26, 2026·Closes October 18, 2026

About the Role

Help us make a big green dent in the universe. We're on a mission to drive the global renewable energy revolution, and we need many more people to help us make our vision a reality.

Octopus Energy Generation (OEGEN) is a leader in sourcing, investing in, and managing a wide range of utility-scale renewable energy assets. As we continue to expand our investment base, we are dedicated to building a diverse team that reflects the communities we serve. Currently, we manage a global portfolio of over £7 billion in renewable energy assets.

We are committed to delivering best-in-class responsible investment activity, offering like-minded investors the means and products to invest their capital sustainably. It is our ambition to change the entire energy lifecycle and make every green electron matter, delivering the best outcomes for customers, investors, the environment and society, accelerating the transition to net zero.

The Development Portfolio Management Team at OEGEN is responsible for delivering our development investments and works hand in hand with developers to deliver on the investment cases in changing commercial and market dynamics.

Your mission will be to make our large development portfolio across Europe a huge success. It spans different maturity stages (from early-stage land to ready to build) and five countries.

We are looking for someone who is very commercially minded, understands renewables development, loves data and communicates clearly with the team and senior stakeholders. The board directors and fund managers will rely on you to support them in decision making and value creation for portfolio companies.

You will be in charge of value maximisation of projects through their development journey (from early stage to ready to build) and lead on exits.

The ideal candidate will be available to start within 4 weeks.

What you'll do

Commercial Management:

You will be a key person responsible for modelling renewable energy projects, joint ventures and TopCo business plans.

Maintain and adapt financial models to monitor valuation and financial performance of investments, conducting regular assessments of overall portfolio performance against objectives and reporting progress to OEGEN fund managers.

You will support the commercial management of multiple development pipelines, working with a team of portfolio managers and developers to track performance against investment cases and agreed milestones.

Support managers and fund managers on value maximisation initiatives for each development project, including exit timing, sale preparation, revenue contracting, last mile development and other activities, ensuring optimal returns to investors on exit. You will drive the exit process of projects and platforms at different stage of their life.

Monitor and interrogate project progress, budgets and KPIs, identifying and escalating risks in a timely manner, and provide briefings and solutions to decision makers (such as board directors and fund managers).

Governance Oversight:

Support in implementing and maintaining governance frameworks across portfolio companies, ensuring compliance with internal standards and external regulatory requirements.

Coordinate with developers on the preparation of board packs, investment committee materials and other operational review documentation to support senior management.

Track compliance with internal processes and external regulatory requirements, escalating gaps where identified.

What you'll need

Strong financial modelling skills (DCFs, business plans). Proficient in financial modelling principles, accounting, project management, data and reporting.

Strong commercial acumen and experience in managing investments, assets and/or development pipelines against investment objectives. Experience in analysing complex data, tracking KPIs, and preparing structured reporting for internal stakeholders.

Be a pro-active and self-starting senior team member who has a strong sense of ownership, “can do” attitude, strong team spirit and ability to grow team members.

Great communication and interpersonal skills, adept at building relationships and presenting analysis to a diverse range of stakeholders.

Excellent organizational, time management, and problem-solving skills.

Preferably but not mandatory experience in the sale of renewable energy assets (development, in construction or operational stage).

💚 Why else you'll love it here

💰 Wondering what the salary for this role is? Just ask us! On a call 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 recently named the UK's top company to work for, and we ranked in the top ten in the Sunday Times Best Places to Work 2024. 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

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 hiring@octoenergy.com and we’d love to help!

If this sounds like you then we'd love to hear from you. 🚀

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.