Senior Data Engineer

We're making energy fair, clean, and simple for all using technology. 

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. 

Octopus Energy Group is a global energy transition collective. 10 businesses working across 4 continents to tackle energy transformation at nearly every front.

And we constantly push to make energy better. Tirelessly campaigning for fair protections for customers. And building innovative technologies that forge a path to a green energy system.

We’re made up of 10,000+ authentic, committed people working around the world on stuff you'd never expect. We're united by a shared goal: to drive the global green energy revolution. Read our Spotlight series to meet some of the team.

To deliver on this mission, we are looking for a Senior Data Engineer to join the Flexibility team.

The Flexibility team was established in early 2026, and has been growing throughout the year. The team is focused on greenfield opportunities at the cutting edge of Octopus' flexibility strategy, and aims to enable rapid response to global flex opportunities.

They are building the next generation of products and tools to make energy more flexible. These include our flagship Intelligent Octopus product automating demand shift for 300,000 customers with electric cars, home batteries or smart heating devices, saving 2 million customers money through Saving Sessions and Free Electricity Sessions, and managing 568MW of large grid-scale batteries to balance the system. The team develops products that are used by millions of customers, helping boost renewables use and decarbonise energy systems worldwide.

We embrace flat hierarchies and an open, agile culture that fosters innovation, flexibility, and creativity. 

We don’t hang our personalities up with our coats and nor should you. At Octopus, we hire great people who get stuff done, all whilst being themselves.

If this sounds exciting, we’d love to chat.

Acting as the flexibility team’s first full-time data engineer, establish the team’s data capability, lead the team’s data engineering technical direction and represent the team to the cross-team data community

Upskill data-literate backend engineers, act as the team's data expert and as a multiplier on other engineers' impact

Establish greenfield data engineering systems in a newly established AWS environment

Provide a foundational layer of high quality data processing and warehousing that will enable future projects for both our team and others

Maintain and develop critical data applications - scoping and implementing architectural improvements for long-term global scalability, robustness and operational efficiency

Interface with the established data warehouse, built on Databricks

Take ownership of data platform improvements that enhance the capabilities for all teams and drive trust in the stability of the system

Python as our main programming language

Databricks Spark for data processing

Databricks/dbt/SQL for data modelling and analytics

Streamlit for data applications and visualisations

Airflow for job scheduling and tracking

CircleCI for continuous deployment

Parquet and Delta file formats on S3 for data lake storage

Terraform for our infrastructure definition

Kubernetes for data services and task orchestration

Datadog/Grafana/Prometheus for platform monitoring

Django for custom databases and frameworks

Postgres / Aurora for our relational databases

Notion for documentation

• 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

 

 

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 ----- and we’d love to help!