At Octopus Energy Trading, we’re on a mission to reshape the future of energy. As part of Octopus Energy Group, we’re creating an innovative approach to trading that will accelerate the transition to a Net Zero world. With the growth of renewables and a push toward decarbonising heating and transport, greater flexibility in the grid is essential. We are building cutting‑edge technology to optimise everything, from domestic EV charging to grid‑scale batteries, to meet the global demand for energy flexibility.
We’re looking for passionate and unconventional thinkers to join us on this journey, bringing a diversity of experience and ideas to shape a more efficient, flexible, and sustainable energy system.
With an increase in variable and distributed supply, using data for trading and forecasting has never been more important. Octopus has always had a tech‑first approach, and our trading and analytics tools are all built in‑house by specialised domain teams, focussed on areas like grid‑scale batteries or market fundamentals, all building on a common platform that is managed by our core engineering team.
We are seeking a software engineer to join the core engineering team and help own the developer experience. You will be responsible for designing the frameworks and tooling that allow our domain teams to develop, ship, and manage event‑driven microservices with zero overhead, as well as building and maintaining core microservices that can be re‑used by domain teams.
Please note, this role is a minimum of 2-3 days a week from our London office – but you’d be welcome in more frequently if you’d like to.
What you’ll do
- Build and maintain the platform that underpins our low‑latency event‑driven microservices architecture, ensuring it is robust, performant and highly available (our human and algo trading processes run 24/7)
- Build and maintain core microservices that can be re‑used by domain teams as well as supporting them to build their own
- Develop intuitive and well tested tooling that frees domain teams from implementation details, enabling them to focus on their specialism
- Partner with domain teams to scope and prioritise opportunities, and deliver solutions that make their lives easier
- Lead by example on software engineering best practices at OE Trading, levelling up domain teams through great documentation, knowledge sharing and driving AI adoption
What you’ll need
- Advanced‑level Python
- Passionate about clean code and software engineering best practices
- Enthusiastic about enabling others through great platform, tooling and developer experience
- Experience managing production systems on Kubernetes (or similar) with observability tools like Grafana, Datadog and Sentry
- Knowledge of many of the following as possible:
- Asynchronous Python
- Microservices
- REST APIs
- Event driven architectures
- Streaming technologies like Redis Streams, Kafka or RabbitMQ
- WebSockets
- Kubernetes
- Autonomy and pragmatism, as projects will be varied and self-driven
- A team player mindset and to be comfortable jumping into whatever is required – we’re still a start up!
Bonus points for experience of the following
- Continuous intraday power trading in the UK or EU
- Experience developing low‑latency systems where correctness is critical
- Building frontends using TypeScript e.g. Angular or React
- High performance languages like Go and Rust
- Analytics tooling like Databricks, dbt, Streamlit and Lightdash
Our Tech Stack
- Python for as much as possible
- Redis as our database and S3 for long term storage
- FastStream for streaming microservices
- FastAPI for RESTful microservices
- Airflow for orchestration
- Docker and Kubernetes to build and run our microservices
- GitHub for repos and CircleCI for CI/CD
- AWS for infrastructure, deployed with Terraform / Spacelift
- Linear for project management
- Notion for documentation
- Claude, Warp and Cursor for AI agents
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.
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