Principal Backend Engineer

Backend Software Engineer Python

Location: UK Remote
Engagement: Permanent
Interview Process: Single stage technical interview

OCHO is partnering with a growing product led engineering organisation building high throughput systems that sit at the core of real world field operations.

This role is ideal for backend engineers who enjoy working deeply in Python and care about system design, data flow, and performance. You will help design and evolve backend services where reliability, scalability, and operational clarity matter.

The team values clean architecture, thoughtful problem solving, and engineers who want real ownership over how systems are built and improved.

• Design and develop backend services in Python to support large scale operational workflows.
• Work closely with product teams to break down complex requirements and shape technical solutions.
• Build and maintain well structured APIs, data pipelines, and service integrations.
• Contribute to architectural decisions and the ongoing evolution of the backend platform.
• Improve system reliability through observability, automated testing, and performance optimisation.
• Collaborate with frontend, mobile, and data teams as part of a cross functional product group.

• Strong professional experience building backend systems using Python.
• Experience with modern Python frameworks such as FastAPI, Flask, or Django.
• A solid understanding of API design, data modelling, and distributed systems.
• Experience working with relational databases and optimising query performance.
• Ability to reason about system behaviour under real operational load.
• Confidence contributing to code reviews, system design discussions, and technical direction.
• A mindset focused on craftsmanship, clarity, and ownership.

This is an opportunity to work on meaningful Python backend challenges where your design decisions directly affect system reliability and user experience. You will join a team that values good engineering, encourages learning, and trusts engineers to own their work.

The interview process is intentionally straightforward. A single technical interview focused on system design and practical problem solving.

For a confidential conversation, reach out directly to Ryan Quinn on Linked In
.