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Software Engineer, Security

Cursor · San Francisco

Location
San Francisco
Employment
Full time
Level
Mid level
Posted
12 months ago

About this role

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

Security Software Engineers help us ship secure products end-to-end - covering enterprise security, cloud/infrastructure, and protections embedded directly in our products. You’ll build the tools and features that safeguard our platform and editor and protect our customers.

You may be a fit if

  • You are a strong software engineer first, with security as your superpower.

  • You think like both a builder and an attacker: you anticipate vulnerabilities before they become issues.

  • You care about developer experience, building solutions that are secure and frictionless.

  • You’re comfortable moving quickly, owning problems end to end, and iterating with limited guidance.

  • You have experience building or scaling secure systems in fast-moving environments.

  • You have strong opinions on secure defaults, but can balance pragmatism with rigor.

  • You enjoy working on small, high-talent teams where impact is magnified.

  • You’re motivated by protecting developers and users, and you see security as an enabler.

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 and enforces least privileges.

  • Implement a safe environment for agents to engage with code

  • Implement a framework for securely handling agent manipulation of user systems (e.g., MCP tool calls and command execution).

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

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.

#LI-DNI

As published by Cursor. Applications are handled on their site.

About Cursor

Cursor is an AI editor and coding agent. Describe what you want to build or change in natural language and Cursor will write the code for you.

All 122 openings at Cursor

One click, then it is written

Apply to Cursor with a resume written for this role.

Queue Software Engineer, Security and I read the posting, rewrite your resume against it, draft the cover letter, and score the fit. Then you press send, or press one button and I fill in Cursor’s form for you.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • 25 sent a week, free
  • No card
  • Nothing sent until you say so

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Put this to work

Paste your career in once. Every application after that is written for you.

Drop a resume or a LinkedIn URL. I rank the live openings against it, rewrite the resume and write a cover letter for the best of them, and fill in the employer's form when you press the button. You read, you decide what goes out.

  1. 01Drop your resume

    A PDF or a LinkedIn URL. About a minute, once.

  2. 02I rank the openings

    Every weekday morning, the live catalog scored against your history. Up to 20 worth your time, not two hundred links.

  3. 03Each one is written up

    Resume rewritten for the posting, a cover letter, a fit score. Press send, or let me fill in the form.

  • New matches ranked and written before you are up.
  • Every bullet stays inside what your history supports. Nothing invented.
  • Queued, submitted, interviewing, offer: one screen, not a spreadsheet.

500 free credits on sign-up. No card. Nothing is sent until you say so.

Listed from the job board Cursor publishes. Refolk is not the employer and does not handle their hiring. Applications go to Cursor directly.