Location: London office

Duration: Full time 6th July-28th August

Pay: London Living Wage (pro rata)

Application deadline: April 17th, 2026

Who we are

Octopus Energy started with a bold idea: to build Britain’s first truly digital energy supplier. By combining world-class tech with brilliant humans who care deeply about customers and driving the renewable energy transition, we made it happen and in 2025, we became Britain’s largest energy supplier.

Today, our impact is global. We support over 10 million customers across 30 countries and manage a £7 billion portfolio of renewable energy assets.

By empowering our teams to deliver outrageously good customer service, we make energy fairer for everyone. Our mission is to halt the climate emergency by using technology to transform the energy system, making electricity greener and more affordable, while creating one-of-a-kind innovations.

About the role

We’re looking for a keen-eyed, fast-paced individual to join the many-faceted payments team as an intern, to support refunds and payments for the best possible customer experience. The payments team is the last port of call for anything related to customer credit balances. Accuracy and speed are key to ensure large volumes can be processed without any issues.

In this role, you will focus on spotting issues, fixing problems, and supporting our customer-facing Energy Specialists to deliver outrageous customer service. You should be able to work quickly, accurately, and across multiple processes in a high-paced, solution-orientated environment.

What you'll do

Manage the end-to-end cheque process, including sending cheques to customers, processing cheques, and reconciling accounts.
Allocate missing payments and reconcile BACS payments onto customer accounts.
Review and respond to customer emails while liaising with other businesses regarding payments.
Manage the repayment process, working closely with the finance team on payment audits and same-day refunds.
Support our Energy Specialists with any payments or refund-related queries to help them deliver exceptional service.
Communicate directly with customers as required to resolve payment issues.

What you'll need

Meticulous attention to detail and a genuine zest for order.
A "can-do" attitude, with a willingness to roll up your sleeves and get stuck in.
Adaptability to remain fluid and comfortable in a fast-paced environment where you may be pulled in different directions.
Strong self-management skills to handle your own workload effectively.
Patience and a helpful nature, as this role involves answering "a thousand questions".
Tenacity and a solution-oriented mindset.