Senior Backend Engineer (Ruby and/or Go), Tenant Scale; Cells Infrastructure at Gitlab

This role is designed for an experienced engineer with a strong background in distributed systems and infrastructure. Ideally, you have deep expertise in building high-scale, resilient services using **Go, Ruby on Rails, or TypeScript**. You should be comfortable moving between application logic and low-level networking, as you will be working on a "Cells" architecture that allows for massive horizontal scaling. GitLab offers a highly mature, **async-first, fully remote culture** that prioritizes documentation and transparency. This position provides unique growth potential as you'll be building foundational horizontal scaling technology for one of the world's largest DevSecOps platforms. Benefits include flexible PTO, equity compensation through an ESPP, and a dedicated growth and development fund. **You might be a good fit if you...** * Have experience building and operating **high-throughput networking services** (gRPC, Protobufs). * Are comfortable with **PostgreSQL** schema design and performance tuning at a massive scale. * Enjoy "operational ownership," including participating in on-call rotations and writing operational runbooks. * Thrive in globally distributed teams where written communication is the primary way of working.