Senior Python Backend Engineer for Scalable APIs

Octopus Energy Group; United Kingdom; Remote; GBP 90,000 - 120,000; Full time

Job summary

Octopus Electric Vehicles is seeking a Senior Software Engineer (Python) to join our product and engineering team building systems powering our electric car leasing platform.

Stack includes Python, GraphQL, PostgreSQL, NoSQL on AWS with a React/Next.js frontend. You’ll own API design, backend architecture, data modeling, and cross-functional collaboration to deliver reliable, scalable features.

Qualifications

• Deep expertise in Python and strong software engineering fundamentals.
• Experience designing and building APIs, ideally GraphQL.
• Experience with relational PostgreSQL and NoSQL databases.
• Solid understanding of software engineering principles and scalable systems.
• Proven collaboration across cross-functional teams.
• Experience using AI tech and tooling to augment development.
• Ownership of features from inception through to delivery.

Responsibilities

• Design and build robust APIs, integrating our own and third-party services to optimise and automate core business processes.
• Architect and evolve backend systems and data models that are performant, scalable, and built to last.
• Work across multiple data sources, designing expressive, well-structured schemas.
• Contribute to frontend applications when needed, helping shape experiences that work well for our users.
• Care about the code you write and its long-term maintainability.
• Contribute ideas, share knowledge, support, mentor, and raise the game of those around you.

Skills

Python

APIs & GraphQL

PostgreSQL

NoSQL

AWS

Backend architecture

Team collaboration

Tools

React

Next.js

Job description

Octopus Electric Vehicles is seeking a Senior Software Engineer (Python) to join our product and engineering team building systems powering our electric car leasing platform.

Stack includes Python, GraphQL, PostgreSQL, NoSQL on AWS with a React/Next.js frontend. You’ll own API design, backend architecture, data modeling, and cross-functional collaboration to deliver reliable, scalable features.