Senior Backend Engineer - Go/Python, Scalable Data Pipelines

ExTrac is seeking a Senior Software Engineer in London to help build and operate backend microservices that power our decision intelligence platform. You will own services end to end across Go and Python codebases, work with AI, frontend, analysts, and product managers, and focus on performance, reliability, and scalable data pipelines.

You will design APIs, optimize databases and indices, and contribute to system architecture decisions while collaborating across teams to deliver