Commercial Accountant (Supply Chain)

Octopus Energy

4300

London (GB), USA

Posted on: 2026-02-23

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 are seeking a highly motivated, qualified accountant to join our growing Finance team at Octopus Energy Services. This role sits at the intersection of finance and supply chain, giving you ownership over cost of sales and inventory management, and how they impact our reporting. Reporting into the Supply Chain Finance Business Partner, you’ll work closely with Finance and Supply chain to provide day-to-day finance management, whilst bringing fresh ideas to tackle challenges and improve how our business is run.

We are a fast-paced, rapidly evolving business, and we need someone who is eager to dive into the details, get hands-on, and rapidly expand their experience. If you are looking for a standard, behind-the-scenes accounting role, this isn't it! This role offers a real opportunity to work across business functions and have a tangible impact on driving process improvements and identifying both strategic opportunity and commercial risk.

💚 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

• 🎁 Visit our UK perks hub - Octopus Employee Benefits

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

P.S. 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 [email protected] and we’d love to help!

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.

What you'll do:

Drive Month-End Operations: Prepare the monthly divisional and consolidated management accounts for Supply Chain, including assisting in the calculation and review of the monthly Cost of Sales, ensuring accurate cost allocations for installed items.

Manage Inventory Lifecycle: Manage inventory-related transactions (including purchases, allocations, returns, and write-offs), ensuring they are accurately reflected in the general ledger.

Variance & Valuation Deep Dives: Oversee the day-to-day reconciliation of stock counts against inventory records, taking the lead on investigating, explaining, and resolving any quantity and value variances. You will also support the team in periodic reviews of inventory valuation, including obsolescence and net realisable value assessments.

Commercial Business Partnering Experience: Gain valuable cross-functional experience as you liaise with operational and finance stakeholders to review financial results, delivering clear variance reporting, comprehensive documentation, and corrective journal entries where necessary.

Future-Focused Analytics: Look ahead by assisting with the monthly re-forecasting narrative and the annual budgeting process, while also building robust KPI tracking models.

Process Evolution & Problem Solving: Assist with the review of existing finance processes to design and implement continuous improvements that strengthen financial control. We want your fresh ideas to help us build better ways of working!

Financial Control & Audit Leadership: Perform monthly balance sheet reconciliations to ensure the absolute integrity of the general ledger and financial records. You will lead the preparation of complex year-end reconciliations and audit requests, acting as a primary point of contact for inventory/cost of sales and other supply chain queries throughout all audits.

What you'll need:

Professional Qualification: Must be a fully or recently qualified accountant (ICAS, ICAEW/ACA, CIMA, ACCA, or a highly regarded foreign equivalent recognized in the UK).

Experience: 2–3+ years of relevant experience in a similar cost accounting role, commercial finance with inventory/cost of sales experience, or similar analytical/accounting role.

Industry Knowledge: Strong proven experience in a business with physical inventory (e.g., retail, manufacturing, or services with hardware installation).

Technical Skills: Advanced Excel skills, including data analysis, and financial modeling. Experience with financial accounting software (NetSuite experience is highly desirable).

Communication & Track Record: Proven ability to effectively, confidently, and commercially communicate and present financial data to stakeholders across both finance and operational teams.

Mindset: Highly proactive, self-motivated, and capable of working autonomously with a rigorous level of attention to detail and accuracy.

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