About Sentry Software runs the world and the pace is faster than ever. Sentry helps developers fix errors and performance issues before users notice, so teams can spend less time firefighting and more time building. Trusted by 200,000+ organizations, Sentry is today’s application monitoring standard and our team is building its AI-native future.

Io provides a suite of services to diagnose health problems in their customers’ applications. These tools are mission‑critical to companies who want to respond effectively in fast‑paced markets. We make the development and deployment of these tools a secure and enjoyable experience, by maintaining a succinct and helpful continuous integration environment and an informative deployment pipeline.

The Centralized

Tenancy and Routing Layer (CTRL) team builds and operates the foundational infrastructure that defines customer boundaries and coordinates lifecycle operations across Sentry’s distributed architecture. These systems power how customers are managed and how services communicate and replicate data safely across our ecosystem. As a Senior Software Engineer on the CTRL team, you’ll design and operate the core platform primitives that make this architecture possible.

Your work will focus on distributed coordination, cross‑cell routing, replication infrastructure, and lifecycle orchestration for the customer environment. This role sits at the heart of Sentry’s platform architecture—building the control systems that ensure the platform operates safely and correctly at global scale. Ultimately, you’ll help build the infrastructure that enables Sentry’s SaaS platform to scale safely across a distributed, multi‑cell architecture.

Build and enhance the control plane systems that manage customer identity, placement, and lifecycle across a multi‑cell architecture. Improve the reliability, scalability, and observability of mission‑critical control plane services. Help operate critical infrastructure through incident response and continuous improvement.





Enjoy building foundational distributed systems that power an entire platform. Like designing systems that coordinate state and data across large distributed environments. Prefer solving architectural problems rather than product feature work. 5+ years of experience as a Software Engineer or similar role. ~ Strong proficiency with Python;

Experience building infrastructure services or platform APIs used by multiple teams. ~ AWS, Azure, GCP). ~ The base salary range (or hourly wage range, if applicable) that Sentry reasonably expects to pay for this position is CAD $200,000 to $295,000. A successful candidate’s actual base salary (or hourly wage) amount will be determined by a variety of relevant factors including, without limitation, the candidate’s work location, education, work and other relevant experience, skills, and job‑related knowledge. A successful candidate will be eligible to participate in Sentry’s employee benefit plans/programs applicable to the candidate’s position (including incentive compensation, equity grants, paid time off, and group health insurance coverage).

Equal Opportunity at Sentry Sentry is committed to providing equal employment opportunities to its employees and candidates for employment regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, or other legally‑protected characteristic. This commitment includes the provision of reasonable accommodations to employees and candidates for employment with physical or mental disabilities who require such accommodations in order to (a) perform the essential functions of their jobs, or (b) seek employment with Sentry. Sentry is an open‑source company because we believe that everyone, everywhere, should have the ability and tools to make great software.

Software should be accessible. If you need assistance or an accommodation due to a disability, you may contact us at [email protected] to learn more about how Sentry handles applicant data? Get the details in our Applicant Privacy Policy. #

📌 Senior Software Engineer, Monitoring (Toronto)
🏢 Sentry
📍 Toronto