Assistant Financial Controller

Octopus Energy

4300

Sheffield (GB), USA

Posted on: 2026-02-12

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 outside of Octopus.

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 else 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.

Mobile Power is transforming energy and transport through innovative and affordable energy solutions, enabling a net zero future for all. Our solar-powered MOPO Hubs are operating across Sub-Saharan Africa, providing energy for homes, businesses and electric transport without consumer debt.

As Assistant Financial Controller you will take increasing responsibility in managing the UK day-to-day finance processes and support the Group Financial Controller/CFO in tasks relating to the group. This is an exciting time to be joining the company as we pursue growth and hence will be plenty of opportunity for working collaboratively to improve systems and problem solving in both the UK and global entities.

This is an excellent opportunity for someone who wants to build a finance career while helping change the world in the process. We don’t want you to remain static but to be able to delegate and automate as you progress.

More about MOPO:

MOPO is on a mission to enable renewable energy access in underserved markets. Already operating in Nigeria, DRC, Sierra Leone and Liberia, our 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

The role will interest you if...

You're excited by the prospect of leading technology development that transforms off-grid energy and e-mobility in Africa

You have a passion for building high-performing engineering teams and creating firmware that improves the lives of our customers

You are interested in working in a truly collaborative environment where you'll work closely with hardware engineers, product designers, senior leadership, and stakeholders at our tech hub in Sheffield