Software Engineer, Security

Role

Security engineers secure Cursor's products and internal infrastructure. We're business enablers who aim to solve security problems systemically so that our engineering customers can move fast and safely.Sample projects include:

You might be a fit if...

• Have 5+ years of hands-on experience in application and infrastructure security

• Possess broad security knowledge to work cross-functionally across domains and find holistic ways to decrease the overall threat surface

• Bring experience with modern application stacks, infrastructure, and security tools to implement pragmatic defenses

Sample projects include:

• Build AI augmented code review to get involved in important systems at the right time

• Build a least-privilege and JIT system for cloud access that enables engineers but doesn't grant unnecessary permissions

• Build automated canary systems for patch testing

• Implement a safe environment for agents to engage with code

• Implement a paved road for preventing inappropriate data from being logged

• Implement a framework for blocking decisions for MCP tool calls

About

We're Anysphere, the team behind Cursor.

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.

We're a group of engineers and scientists who've built beloved products, created large OSS projects, started at-scale businesses, won olympiad medals, and published significant research (e.g. tmm1, ian, luke, phil, federico, aman, sualeh).

Our organization is very flat, and our team is small and talent dense. We particularly like people who are truthseeking, passionate, and creative. We enjoy spirited debate, crazy ideas, and shipping code.

We're in-person with cozy offices in North Beach, San Francisco and Manhattan, New York, replete with well-stocked libraries. Our investors include Andreessen Horowitz, OpenAI, Jeff Dean, John Schulman, and the founders of Stripe and Github.

Applying

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.