Software Engineer, Client Infrastructure

About the Role

As an Engineer on the Client Infrastructure team, you’ll design and build the systems that make our desktop experience performant and stable for millions of developers.

You’ll work across the core architecture of the Cursor client—from build and distribution systems to performance instrumentation and shared abstractions that other teams rely on. The work is deeply technical and central to the company’s success. Cursor’s client is growing fast, spanning macOS, Windows, and Linux, and serving an increasingly diverse user base of professional engineers across many programming languages and developer ecosystems.

Example Projects Include

• Building core client infrastructure: shared abstractions, build systems, and observability foundations.
• Improving reliability and performance: eliminating memory leaks, crashes, and frame-time inconsistencies.
• Designing instrumentation and telemetry systems for profiling, structured logging, and performance measurement.
• Partnering with product teams to unlock faster release velocity—shipping updates to users daily.
• Evaluating Electron vs. native approaches for critical code paths, guiding architectural tradeoffs.
• Building internal tooling that enables other engineers to ship safely and quickly on the client platform.

Qualifications

• Deep experience in client infrastructure—build systems, performance, distribution, or observability.
• Experience building or contributing to high-performance desktop applications, whether Electron-based or native.
• Strong focus on performance, reliability, developer experience, and elegant systems design.
• Ability to thrive in fast-moving, collaborative, and product-focused environments.
• Excitement about pushing the limits of what’s possible in AI-driven developer tools.

Interview Process

• 2–3 short technical interviews
• Onsite interview in office (small project, idea discussion, and team meeting)