Cost Accountant

Octopus Energy

4300

London (GB), USA

Posted on: 2025-12-18

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 motivated and detail-oriented Cost Accountant to join our growing Finance team at Octopus Energy Services. This role will report to the Finance Business Partner - Supply Chain and play a crucial role in the day-to-day financial operations of the company.

This role will entail preparation of financial reports, month-end processes, and ensuring compliance with relevant accounting standards. You will be working closely with the business to assist with day-to-day finance management and identifying any commercial risks or opportunities to improve the business’ position. The ideal candidate will have a strong understanding of fundamental accounting and be keen to develop their skills in a fast-paced environment.

💚 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:

Daily transaction posting including accurately processing all inventory-related transactions, including purchases, transfers to engineers, returns, and write-offs, ensuring they are correctly reflected in the general ledger

Preparing monthly divisional and consolidated management accounts, including assisting in the calculation and review of the monthly Cost of Goods Sold, ensuring accurate cost allocations for installed items

Reconcile physical stock counts with perpetual inventory records (both quantity and value) and investigate any variances or discrepancies promptly

Support the team in periodic reviews of inventory valuation, including obsolescence and net realisable value assessments.

Perform balance sheet reconciliations to ensure integrity of the general ledger and financial records, with a primary focus on inventory

Reviewing finance processes to ensure that continuous improvements are made to improve inventory tracking and control

Liaising with finance representatives to finalise results, reporting on variances as required and providing clear documentation and corrective journal entries where necessary

Assist with the preparation of year-end reconciliations and schedules, and working closely with our auditors throughout the year end audit

Provide forecasting and KPI support: compiling data for the monthly re-forecasting, annual budgeting process, KPI tracking for the Supply Chain division

What you'll need:

A relevant degree in Accounting, Finance, or a related field (or equivalent practical experience)

Part-qualified or actively studying towards a professional accounting qualification (AAT, ACCA, CIMA, ACA or ICAS)

1–2 years experience in a cost accounting or similar role

Experience in a business with a physical inventory component preferable (e.g., retail, manufacturing, or services with hardware installation)

Strong IT skills including advanced excel skills such as complex formulas and data analysis

Must be able to effectively and confidently communicate and present to senior management, both within finance and operational teams

Proactive and self-motivated with a high level of attention to detail and accuracy

Experience with financial accounting software (NetSuite) would be preferable

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