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Senior Backend Engineer (Ruby and/or Go), Tenant Scale; Cells InfrastructureGitLab • Saint Paul, Illinois, United States
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Senior Backend Engineer (Ruby and/or Go), Tenant Scale; Cells Infrastructure

GitLab
  • US
    Saint Paul, Illinois, United States
  • US
    Saint Paul, Illinois, United States
Jetzt Bewerben

Über

Senior Backend Engineer (Ruby or Golang), Tenant Scale; Cells Infrastructure Remote, APAC; Remote, Canada; Remote, EMEA; Remote, US
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.
GitLab’s mission is driven by a high‑performance culture that embraces AI as a core productivity multiplier. We value continuous knowledge exchange and collaboration across industry leaders to solve complex problems.
An overview of this role As a
Senior Backend Engineer, Cells Infrastructure , you’ll build the foundation that lets GitLab.com scale horizontally through our Cells architecture. You’ll work on two core parts: edge routing services that direct traffic across a fleet of independent Cell clusters, and the Topology Service that manages and serves cluster topology information as the source of truth for the rest of the platform. Your work will make routing reliable and low‑latency across protocols, and ensure GitLab teams can build Cell‑aware features with confidence as we grow.
Examples of our projects:
Building and operating routing services in TypeScript that direct requests to the correct Cell using cluster topology data
Developing and maintaining the systems that store, update, and serve cluster topology information that routing, resource assignment, and Cell lifecycle decisions depend on
What you'll do
Design and implement edge traffic routing that directs requests to the correct Cell in a way that’s transparent to users.
Build and evolve the Topology Service that serves as the authoritative source of cluster state for routing, resource assignment, and Cell lifecycle decisions.
Collaborate across the GitLab Rails monolith and supporting services to make features and data models Cell‑aware with feature teams across the product.
Operate and improve the routing and topology systems you build by participating in tier‑2 on‑call, responding to escalated incidents, and strengthening observability and operational tooling.
Author Architecture Decision Records (ADRs), operational runbooks, and documentation so other teams can understand, adopt, and extend the Cells platform.
Review merge requests from GitLab team members and community contributors, maintaining high standards for correctness, performance, and security across the stack.
What you'll bring
Experience building observable, resilient production services using Golang or Ruby on Rails (TypeScript experience is a plus).
Background delivering and operating production systems in high‑scale environments, including incident response and operational ownership.
Ability to reason about distributed systems, including consistency models, partitioning strategies, failure modes, and operational tradeoffs.
Experience building high‑throughput networking services (gRPC and protocol buffers knowledge is a plus).
Familiarity working in large, multi‑team codebases and coordinating changes across teams and services, including making features and data models Cell‑aware.
Knowledge of observability practices such as metrics, tracing, and alerting, with an approach focused on building systems you’d be confident operating on‑call.
Strong written communication skills for an async‑first, globally distributed team, including documenting decisions (for example, architecture decision records) and runbooks.
Experience working with relational databases in production, including schema design, migrations, and query performance tuning (PostgreSQL experience is a plus).
About the team We’re the Cells Infrastructure team within the Tenant Scale group in Infrastructure Platforms. We’re a globally distributed, all‑remote group of Backend Engineers and Site Reliability Engineers working asynchronously across multiple time zones. We own foundational services for GitLab’s Cells architecture, including edge routing that directs requests to the right Cell and our topology systems that act as the source of truth for cluster state. Our challenge is making GitLab.com scale horizontally in a way that’s reliable, low‑latency, and operable, so every request reaches the right cluster and we can keep growing safely.
Equal Employment Opportunity GitLab is a proud equal‑opportunity workplace and an affirmative action employer. Our policies are based solely on merit, regardless of race, color, religion, ancestry, sex, national origin, age, citizenship, marital status, mental or physical disability, genetic information, or any protected veteran status. GitLab will not tolerate discrimination or harassment. For more information on our EEO policy, see GitLab’s EEO Policy and EEO is the Law. If you have a disability or special need that requires accommodation, please let us know during the recruiting process.
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  • Saint Paul, Illinois, United States

Sprachkenntnisse

  • English
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