Senior Backend Engineer (C), Tenant Scale: Git

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Senior Backend Engineer on the Tenant Scale: Git team, you'll help improve one of the most widely used foundations of modern software development. Git is at the core of how developers collaborate, and this role focuses on making Git and Gitaly more capable, reliable, and efficient for GitLab and the people who use our platform. You'll contribute directly to upstream Git, help shape technical direction, and connect open source community discussions with GitLab product needs. Reporting to the Git team lead, you'll work across Git and Gitaly to deliver changes that improve repository access, performance, and long-term maintainability. This is a unique opportunity to influence both an essential open source project and the systems GitLab uses to serve repositories at scale, while helping guide larger efforts that affect the future direction of Git. Some examples of our projects: contributing new features and fixes to upstream Git, and adapting Gitaly to make effective use of new and existing Git capabilities What you’ll do Participate in architectural discussions and technical decisions related to Git and Gitaly, helping drive implementation choices that improve correctness, performance, and maintainability. Contribute features, bug fixes, and performance improvements to upstream Git in line with team and community goals, delivering changes that improve repository access and reliability for users. Adapt Gitaly to make effective use of Git capabilities, including integrating newly available features to improve scalability, efficiency, and long-term maintainability. Connect discussions in the open source Git project with GitLab's product direction and engineering work, helping align upstream contributions with product and platform needs. Scope tasks, estimate effort, and describe implementation plans that support the team's priorities and enable predictable delivery of technical work. Test and validate the features you build and integrate, with a focus on correctness and reliability to reduce regressions and support stable production use. Collaborate with team members, contributors and the Git ecosystem Represent GitLab as a constructive participant in the open source ecosystem, building productive relationships that support ongoing collaboration with the Git community. What you’ll bring Experience building instrumented, observable software systems. Knowledge of Git internals, including its code and data structures, or practical experience operating Git servers. Experience writing and testing production-quality code in C. Experience contributing to open source projects, in