Berlin, Berlin, Germany
I am a Backend Engineer at GitLab based out of Berlin, Germany. I've made significant contributions to the open-source community since 2019 🌐 through code contributions in organizations such as GitLab, Mozilla, Internet Archive, Chatwoot, and many others. 🚀 I am also a maintainer at GitLab (open source project). 🏆 Proud two-time Google Summer of Code recipient! In 2020, collaborated with Mozilla Firefox 🐙 to design and implement their FIDO2 web authentication system. In 2021, worked with GitLab 🦊 to enhance their backup and restore processes. 🎉 I was nominated for the prestigious MVP (Most Valuable Person) award at GitLab 🦊 for the 16.10 (March 2024) release and selected for MVP 17.1 (June 2024) release, recognizing my code contributions to the GitLab codebase. My extensive contributions to these and other projects can be viewed on my GitHub and GitLab profiles. GitHub: https://github.com/imskr GitLab: https://gitlab.com/imskr Website & Blog: https://shubham-kumar.com My open-source contributions: https://shubham-kumar.com/contributions
Part of the Tenant Scale – Organizations group, responsible for delivering large-scale application changes that enable GitLab and GitLab.com to scale to millions of users, while supporting long-term multi-tenancy, isolation, and platform scalability initiatives. 🔧 Key Contributions & Impact: Enhanced Groups and Projects APIs, delivering new features and performance improvements across GitLab’s core platform. 🧩 Led the Organization Isolation initiative, including: • Adding sharding keys across the database layer • Designing and executing backfill migrations for 100+ tables • Strengthening GitLab’s multi-tenant architecture and data isolation strategy 🤝 Improved GitLab’s platform Groups and Projects APIs, including new features and enhancements. ⭐ Maintainer Milestone: October 2025: Became a maintainer at GitLab 📌 Before joining GitLab, my open-source contributions as a community contributor: 🗓 January 2021: First contribution to GitLab 🎓 Google Summer of Code 2021: Selected contributor under the Geo Team 🔁 25+ merge requests merged by December 2023 🏆 March 2024: Nominated for MVP (Most Valuable Person / Notable Contributor Award) – GitLab 16.10 release 🔢 June 2024: 50th merge request merged 🥇 June 2024: Awarded MVP (Notable Contributor Award) for GitLab 17.1 release