Software Engineer, Client Infrastructure

Cursor; California (MO); On-site; USD 140,000 - 200,000; Full time

Job summary

Cursor is seeking an Engineer on the Client Infrastructure team to design and build the systems that power our desktop experience for millions of developers across macOS, Windows, and Linux.

You will work across the core architecture, from build and distribution systems to performance instrumentation and shared abstractions that other teams rely on. The role emphasizes performance, reliability, and delightful developer experience.

Qualifications

• Experience in client infrastructure, including build systems, performance, distribution, or observability.
• Contributed to high-performance desktop applications, Electron-based or native.
• Strong focus on performance, reliability, and developer experience.

Responsibilities

• Design and build the systems that power Cursor’s desktop experience for millions of developers.
• Work across core architecture—from build and distribution to instrumentation and shared abstractions.
• Develop instrumentation, telemetry, and profiling tools to measure performance.
• Collaborate with product teams to accelerate release velocity and ship updates daily.
• Evaluate Electron vs. native approaches for critical code paths to guide architectural decisions.

Skills

Client infrastructure

Build systems

Performance

Distribution

Observability

Tools

Electron

Native apps

Job description

Our mission is to automate coding. The first step in our journey is to build the best tool for professional programmers, using a combination of inventive research, design, and engineering. Our organization is very flat, and our team is small and talent dense. We particularly like people who are truth-seeking, passionate, and creative. We enjoy spirited debate, crazy ideas, and shipping code.

About the Role

As an Engineer on the Client Infrastructure team at Cursor, 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. Developers expect near-perfect performance and reliability from their trusted tools; your work will make that possible.

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. You’ll shape the systems that let us ship safely and quickly, while pushing the limits of what’s possible in an AI-driven development environment.

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.

You may be a fit if

• You have deep experience in client infrastructure—build systems, performance, distribution, or observability.
• You’ve built or contributed to high-performance desktop applications, whether Electron-based or native.
• You care deeply about performance, reliability, and developer experience, and have an eye for elegant systems design.
• You thrive in environments that are fast-moving, collaborative, and product-focused.
• You’re excited to push the limits of what’s possible in AI-driven developer tools.