Software Engineer, Github

• 2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining 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 1+ year(s) experience
• OR Bachelor's Degree in Computer Science or related field
• OR equivalent experience
• 1+ year of professional experience with distributed systems
• Infrastructure experience running containerized applications in production environments
• Experience with Kubernetes/Docker, secure service communication (TLS mutual-auth), and API design

Desirable

• GitHub is changing the way the world builds software, as the home for all developers
• We’re looking for curious and empathetic engineers to join Git Systems – a critical organization in our Platform Engineering team
• We are the Git teams at GitHub
• Git Systems enables all Git Operations for GitHub dotcom
• We maintain the various microservices, protocols, proxies, and GitHub’s fork of git
• If you’ve ever run `git push` on your local machine to share changes on GitHub then you’ve interacted with our services and infrastructure
• We serve billions of git requests daily; if you want to work at scale, Git Systems is an incredible opportunity!
• Git Systems is a highly distributed organization across Europe and North America comprised of three teams: Git Protocols, Git Platform, and Git Storage
• Git Protocols provides external access by terminating all http and ssh requests
• Git Platform serves and routes requests for access to git data
• And finally, Git Storage stores, replicates, and hosts our git data
• The three teams work in tandem, but this position is to join the Git Platform team
• Each team manages their own infrastructure to support their services, though we partner closely with our Infrastructure teams
• To maintain high availability of our critical services we run a 24/7/365 on-call rotation
• This is a shared rotation across our 3 teams, broken into two 12-hour shifts each day – one in North America and Europe respectively
• Right now, our North America engineers have their on-call week, on average, once every 2 months
• Engineers are expected to join the rotation within their first 6-9 months in the role
• In this role you might work on extracting functionality from our Ruby on Rails monolith into Go microservices, work on distributed systems problems, or tackle scaling growth to ensure we keep ahead of our largest customer repositories
• As a Software Engineer II, you’ll work on production-grade distributed systems and internal APIs, focusing on reliability, automation, and operational excellence for GitHub
• You’ll collaborate with senior engineers and technical leads to deliver features and infrastructure improvements that ensure scalable, secure, and resilient repository services
• Write, review, and maintain code primarily in Go and occasionally in Ruby
• Contribute to the development and improvement of internal APIs
• Build and maintain automation for accessing repository and fleet health, generating metrics, and diagnosing access or replication issues
• Support deployment and operation of GitHub access APIs in Kubernetes environments, leveraging TLS mutual authentication and advanced telemetry (metrics, tracing)
• Collaborate on CLI and ChatOps tooling to expose operational insights and diagnostics to internal users
• Ensure detailed logging and error handling for placement decisions and operational activities
• Document architectural designs, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our system
• Participate in code reviews, dependency management, and license compliance workflows
• Technologies Used:
• Go (Golang)
• Docker
• Kubernetes
• REST and RPC APIs (Twirp)
• Datadog & Splunk
• Memcached
• Ruby
• Git
• TLS mutual authentication
• MySQL, hashing techniques