Senior Software Engineer GitHub

About Git Hub

Git Hub 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 Git Hub to collaborate, and more than 77,000 organisations have adopted Git Hub Copilot.

In this role you can work from Remote, United Kingdom

Git Hub is looking for a Senior Software Engineer to join the Copilot API team. This role focuses on building, maintaining, and evolving a robust, scalable, and reliable platform that powers Git Hub Copilot and its integrations. You will work on highly available backend services and APIs that support Copilot features, ensuring consistent, performant, and safe access at scale.

The ideal candidate has experience building and operating distributed systems in production and enjoys working close to the details of system behaviour, reliability, and performance. You care about building services that balance latency, cost, and operational excellence, and you take pride in improving the quality and maintainability of the systems you own.

As a Senior Software Engineer on the Copilot API team, you will collaborate with a distributed, diverse, and passionate group of engineers and product managers across Git Hub and partner teams. The Copilot API platform underpins the reliability and scalability of Copilot features used by developers worldwide. Your work will directly support other engineering teams by enabling seamless integration with Copilot capabilities.

You will contribute through hands‑on implementation, thoughtful design decisions, and strong collaboration within your team. You’ll help uphold best practices for system performance and reliability, contribute to technical designs, and identify opportunities to improve the resilience and scalability of Copilot’s core infrastructure. We value developer empathy, transparency, and inclusive collaboration, and we believe curiosity and impact drive great engineering at Git Hub.

• Design, develop, test and ship high-quality technical solutions that scale across multiple Git Hub services.
• Collaborate with cross-functional teams to define and implement innovative solutions.
• Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others.
• Own and advocate for the health and quality of the systems that the team builds, including participating in on‑call and first responder rotations.
• Write architecture briefs and proposals, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our systems.
• Design and implement APIs to facilitate seamless integration between software components.
• Utilize CI/CD tools to set up automated pipelines for continuous integration and delivery.
• Become intimately familiar with the systems you build and take pride in writing maintainable code.

• 6+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
  • OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
  • OR Bachelor’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 4+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
  • OR Master’s Degree in Computer Science,…