業務内容

• Design and implement edge traffic routing to direct requests to the correct Cell transparently.
• Build and evolve the Topology Service as the authoritative source of cluster state for routing, resource assignment, and Cell lifecycle decisions.
• Collaborate across the Rails monolith and supporting services to make features and data models Cell-aware with cross-team product teams.
• Operate and improve routing/topology systems, participate in tier-2 on-call, respond to incidents, and enhance observability and tooling.
• Author Architecture Decision Records, runbooks, and documentation to enable adoption and extension by other teams.
• Review merge requests from internal and community contributors, upholding security, performance, and correctness.

技術スタック

必須スキル

• Go or Ruby on Rails for production services; observable, resilient systems
• Incident response and operational ownership in high-scale environments
• Distributed systems reasoning (consistency models, partitioning, failure modes)
• Observability (metrics, tracing, alerting)
• Production relational databases (schema design, migrations, query performance)
• Experience working across large multi-team codebases; writing ADRs and runbooks
• Strong written communication for async, globally distributed teams

歓迎スキル（該当する場合）

• TypeScript experience
• gRPC and Protocol Buffers knowledge
• PostgreSQL depth (beyond basics) and edge-routing/topology domain familiarity

キャリア成長観点

• 基盤インフラとしてGitLab.comの水平スケーリングを担い、全社的な影響力のあるアーキテクチャ設計に関与できる。
• Go/Rubyに加えTypeScriptなど多言語の技術に触れ、ネットワーキングや分散システムの専門性を広げられる。
• ADR/Runbook作成やMRレビューを通じて技術リードとしての可視性が高まり、組織横断のデータモデル・機能拡張に影響を与えられる。
• グローバルなリモート環境での協働やSRE的な運用責任を経験する機会、成長費用制度など学習支援の制度が整っている。