Senior Backend Engineer – Flexibility Team
Octopus Tech is 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.
We are looking for Senior Backend Engineers to join our Flexibility team. The team develops products that are used by millions of customers, helping boost renewables use and decarbonise energy systems worldwide.
Qualifications
- 5+ years of professional experience in backend web application development
- Hands‑on experience with Python/Django or equivalent web frameworks
- Strong systems design abilities, including microservices architecture
- Experience designing and operating RDBMS (e.g., PostgreSQL, MySQL)
- Experience with secure, reliable, large‑scale / high‑transaction systems
- Experience developing and operating systems in cloud environments (AWS, GCP, or Azure)
- A self‑sufficient person with a high level of initiative, able to work autonomously in a fast‑changing environment
- A strong team player who collaborates across teams and departments, mentoring and coaching more junior developers
- Someone excited to solve social challenges through technology
- Interest in environmental issues and the energy industry
Additional Desired Skills
- Python
- Django (or equivalent web framework)
- Domain modelling
- Designing distributed systems, improving service reliability, and shaping long‑term architectural strategy
- HTTP and REST APIs, GraphQL and other API technologies
- Writing robust and fault‑tolerant software
- Celery and async processing
- Postgres
- AWS, Terraform, Packer, Consul (bonus)
- English language proficiency
Benefits
- Competitive salary commensurate with experience
- Work location: office in London preferred; remote candidates considered within the UK
- Flexible working hours and supportive culture
We are an equal‑opportunity employer. We do not discriminate on the basis of any protected attribute. We are committed to providing equal opportunities, an inclusive work environment, and fairness for everyone.
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