Senior Backend Developer - Financials & Fraud Prevention

Octopus Energy

3800

London (GB), United Kingdom

Posted on: 2025-06-20

Category: energy

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Employment type:

Full time

Experience required:

Senior

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’re making electric vehicle ownership as smart and simple as possible, by building the world’s largest public charging platform.

In just four years, Octopus Electroverse has grown to become one of the largest eMobility players globally, with over 1,000,000 connected electric vehicle chargers and a customer ecosystem spanning web, iOS, Android, CarPlay, Android Auto & Automotive OS, and more.

But it’s just the start: we’re busy expanding internationally, working with more automotive and tech partners, building exciting new features at scale, and creating the integrated charging experiences of the future - all in the name of making public EV charging super simple for customers.

Electroverse is a multifunctional team made up of product, development, commercial, operations, marketing, partnerships teams, and more - all focused together on making Octopus the go-to name in EV charging. And we’re looking for smart individuals with an interest in the space who can help us make it happen.

This Role:

We’re looking for someone who’s passionate about code, curious, and eager to learn. You’ll be working alongside the backend team that provides services for our Electroverse ecosystem in the electric vehicle and electrification space with focus on helping develop the core functionality of our business. You’ll help us develop solutions for processing payments, analyse financial traffic and aid us in detecting suspicious activity. We’re open to the level you’re applying on, if you don’t feel like a Senior Engineer yet, but you tick all the boxes, we’ll definitely consider your application.

Our project is establishing itself as the leading e-mobility provider solution within the industry and we want to take it to the next level. This means we're working on big features which will give you the chance to have a huge impact and, given our ambitions in the electrification space, influence how the back-end scales to meet new challenges and create a wider ecosystem.

Overall, you'll work with a small, high-energy project team to bring the product to life - an exciting opportunity to work like a start-up within a rapidly scaling EnTech business.

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.

What you’ll do…

Help us improve the core product by developing and improving our financial system

Help improve the accuracy of our financial reporting and payment success rates across our existing and potential payment providers

Build tools to detect and monitor fraudulent operations, help develop risk analysis and prevent malicious behaviour

Work as part of a larger cross-functional team to deliver the best quality product for our clients

Support the Operations team in resolving payments-related customer issues and the Financial team in building accurate reporting systems

What you'll have...

Passion to create something amazing, and the mindset to learn and grow with the company

A strong understanding of the Python and Django ecosystems with 3+ years of experience

Knowledge of payment providers, e.g. Stripe / Adyen / WorldPay

Experience with Fraud and Risk analysis

Experience with KYC/KYB products and flows

Experience with billing and invoicing flows

Experience with monitoring and debugging applications and infrastructure

Experience maintaining asynchronous processing systems (AMQP, Celery)

An ability to discuss vision and features within a team and propose creative solutions

Knowledge of common security practices

Familiarity with continuous integration and continuous deployment

An ability to write robust and fault-tolerant software

Proficient understanding of Git

Octopus Energy

3800

Full time

Octopus Energy

3800

Full time

Energy