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Software Engineer, Core Services
San Francisco +1 · On-site · Full-time · Posted Apr 7, 2026
- Location
- San Francisco
New York
About the job
Build and operate shared backend services—including authentication, agent infrastructure, webhooks, and source-control integrations—that support Cursor’s products and agent workflows.
What you'll do
- Design and operate scalable authentication and other critical backend services.
- Improve agent workflow performance and reliability in partnership with client and inference teams.
- Build reliable webhook delivery and resilient abstractions for source-control integrations.
What they ask for
- Experience building and operating critical backend services, especially authentication systems, API gateways, or webhook infrastructure.
- Experience with agentic products or infrastructure and knowledge of reliability and performance for complex multi-step systems.
- Strong software engineering fundamentals and interest in owning production services through their lifecycle.
- Care for clean abstractions and well-defined service contracts.
Nice to have
- Experience with authentication/authorization frameworks such as OAuth, JWTs, or RBAC.
- Experience with event-driven architectures or developer-facing platform services.
Tools
OAuth, JWTs, RBAC
AI focus
Build and improve backend infrastructure for agent workflows, including end-to-end agent reliability and performance.
Model-written summary · the original posting is authoritative