140K–225K USD / year
Software Engineer, Core Services
BackendOn-site — San Francisco, CA
Published on 2026-11-10
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About this role
Build and operate shared backend services that support product experiences and agent workflows. The role focuses on scalable authentication, reliable webhooks, resilient source-control integrations, and end-to-end agent performance.
About the company
Cursor builds an AI coding editor and agent workflows that help developers write and ship software faster. It serves software teams looking for tighter AI assistance inside the IDE.
The team
Core Services team at SpaceXSI, within the Engineering Foundations organization.
Stack
OAuthJWTRBAC
What you'll do
- Design and implement scalable authentication services.
- Build and optimize backend infrastructure for agent workflows.
- Develop a high-throughput webhook service with retries, dead-letter queues, and observability.
- Create resilient abstractions for source-control integrations.
- Improve end-to-end agent reliability with client and inference teams.
What we're looking for
- Experience building and operating production backend services.
- Experience working with APIs and third-party integrations.
Nice to have
- Experience with authentication systems, API gateways, or webhook infrastructure.
- Experience with agentic products or infrastructure.
- Knowledge of OAuth, JWT, RBAC, event-driven architectures, or developer-facing platform services.
- Strong service-design and production-service ownership skills.
Benefits
- Equity
- Medical, vision, and dental coverage
- 401(k) plan
- Short- and long-term disability insurance
- Life insurance
Hiring process
- Two to three short technical interviews.
- Onsite interview involving a small project, discussion of ideas, and meetings with the team.