Descripción del puesto
<p style="min-height:1.5em">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.</p><h2><strong>About the Role</strong></h2><p style="min-height:1.5em">As a Software Engineer on the <strong>Agent Harness</strong> team at Cursor, you’ll build the core agent behavior and capabilities that power agent experiences across Cursor products. This spans agent orchestration, tools, guardrails, and model behavior tuning—designed as a platform that Cursor engineers can extend and depend on.</p><p style="min-height:1.5em">Your work will also define the default Cursor agent experience (”Auto”), where users trust us to make the right model choices under real-world constraints.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">Example projects include:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Advancing the agent harness (agent loop, tools, prompts, execution environment, capabilities) used across Cursor products. This would shape and empower experiences like multi-agent coordination.</p></li><li><p style="min-height:1.5em">Improving the default Cursor agent experience (the “Auto” model setting): making smart model choices based on user needs, model capabilities, and cost appetite.</p></li><li><p style="min-height:1.5em">Shaping the default Cursor agent’s personality.</p></li><li><p style="min-height:1.5em">Launching new models on Cursor end-to-end — partnering with foundational model providers and our research team on integration, evaluation, and rollout.</p></li></ul><p style="min-height:1.5em"></p><h2>You may be a fit if</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">You have built complex agentic products or infrastructure.</p></li><li><p style="min-height:1.5em">You have strong software engineering fundamentals and enjoy shipping production systems.</p></li><li><p style="min-height:1.5em">You have taste and strong opinions on model and agent behaviors. You stay up-to-date and informed on emerging research and industry trends.</p></li><li><p style="min-height:1.5em">You make good calls in the gray area: weighing data, user experience, and product taste when there isn’t a single “right” answer.</p></li><li><p style="min-height:1.5em">Experience building eval datasets or frameworks to understand and improve the performance of AI systems is a plus.</p></li><li><p style="min-height:1.5em">Experience building products or tools used by other engineers is a plus.</p></li></ul><p style="min-height:1.5em"></p><h2>Applying</h2><p style="min-height:1.5em">If there appears to be a fit, we'll reach to schedule 2-3 short technicals. After, we'll schedule an onsite in our office, where you'll work on a small project, discuss ideas, and meet the team.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">#LI-DNI</p>