Senior Software Engineer, Control Plane

Sentry Sentry · Enterprise · Toronto, ON +1 · Engineering

Senior Software Engineer on the Centralized Tenancy and Routing Layer (CTRL) team, responsible for designing and operating foundational infrastructure for customer boundaries and lifecycle operations across Sentry's distributed architecture. Focuses on distributed coordination, cross-cell routing, replication, and lifecycle orchestration for customer environments at global scale.

What you'd actually do

  1. Build and enhance the control plane systems that manage customer identity, placement, and lifecycle across a multi-cell architecture.
  2. Improve the reliability, scalability, and observability of mission-critical control plane services.
  3. Partner with engineering teams to provide safe infrastructure primitives and standards for cell-compatible systems.
  4. Help operate critical infrastructure through incident response and continuous improvement.

Skills

Required

  • Python
  • Rust
  • designing and operating distributed systems at scale
  • replication, consistency models, and service coordination
  • building infrastructure services or platform APIs
  • cloud platforms (e.g., AWS, Azure, GCP)
  • operating containerized systems (e.g., Docker, Kubernetes)
  • operating production systems with strong ownership
  • written communication skills

Nice to have

  • Rust

What the JD emphasized

  • correctness and reliability are critical
  • strong ownership
  • foundational distributed systems
  • correctness, reliability, and safe infrastructure primitives
  • coordinate state and data across large distributed environments
  • architectural problems rather than product feature work
  • global platform evolves as it scales