Senior Software Engineer, Client Apps Platform

About GitHub: GitHub is the world’s leading platform for agentic software development — powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot.

Locations: In this role you can work from Remote, United States

Overview

You’ll join the Client Apps Platform team, the connective tissue between GitHub’s client applications (gh-CLI, Desktop, Mobile) and feature‑owning backend teams. You’ll build and operate Ruby and Go services, drive architecture and cross team design, and identify opportunities to extract shared platform capabilities to accelerate client teams. This role offers deep exposure to distributed systems, cross‑surface architecture, and influencing technical direction across organizational boundaries.

About the Team

The Client Apps Platform team plays a unique role at GitHub. We focus on facilitation, collaboration, and thoughtful system design, helping navigate the creative tension between client experiences and backend capabilities while building shared platform solutions that scale across GitHub. Responsibilities: * Maintain, extend, and operate production level Ruby and Go services powering first party client apps; write readable, testable, and maintainable code integrated with downstream dependencies. * Lead and facilitate technical design and architecture discussions across product, client app engineers, and domain service teams; propose, validate, and document architectural tradeoffs. * Translate client requirements into platform solutions; identify and drive extraction of common functionality from apps into shared platform components. * Collaborate with domain teams to extend or integrate with GitHub’s Ruby on Rails monolith when additional domain bandwidth or migrations are required. * Define testing strategies, success metrics, SLOs, and safe rollout/rollb