# Software Engineer, Security at Cursor

> Onsite · United States · Unspecified · Security · open. Source: https://alderhq.app/jobs/ashby%3Acursor%3A6f67c0c9-717c-4eb2-919b-5ab7d54e9a8b (read 2026-11-11).

## Facts (observed)

- Company: [Cursor](https://alderhq.app/companies/cursor)
- Location text: San Francisco, CA; New York, NY
- Where it can be done from (inferred): Onsite · United States (evidence: "Location: San Francisco, CA; New York, NY")
- Posted: 2026-11-10 (1 days ago)
- First seen by alder: 2026-11-11 · last verified: 2026-11-11
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://jobs.ashbyhq.com/cursor/6f67c0c9-717c-4eb2-919b-5ab7d54e9a8b

## Pay and sponsorship

- Posted pay: $140k–$225k per year (from the description)
- Market band for similar posted roles (SF Bay Area, n 173): p25 $161k, median $205k, p75 $265k
- Licensed UK sponsor: registered as "Cursor Ltd" (checked 2026-11-09, [register](https://www.gov.uk/government/publications/register-of-licensed-sponsors-workers))

## Description (the employer's text)

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

### SOFTWARE ENGINEER, SECURITY

You form hypotheses about why data is helping or misleading the model, build the systems to test them, run ablations, and read the rollouts to find the bug, shortcut or mismatch behind a result. Every flaw you catch, or miss, shows up in what the next Grok models learn.

### RESPONSIBILITIES

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

### BASIC QUALIFICATIONS

Experience building or scaling secure systems in fast-moving environments

### PREFERRED SKILLS AND EXPERIENCE

A strong software engineer first, with security as your superpower

Think like both a builder and an attacker: you anticipate vulnerabilities before they become issues

Care about developer experience, building solutions that are secure and frictionless

Comfortable moving quickly, owning problems end to end, and iterating with limited guidance

Strong opinions on secure defaults, but can balance pragmatism with rigor

Enjoy working on small, high-talent teams where impact is magnified

Motivated by protecting developers and users, and you see security as an enabler

### ADDITIONAL REQUIREMENTS

If there appears to be a fit, we'll reach out 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

### COMPENSATION AND BENEFITS

The annual compensation range for this role is listed below.

### Annual Salary

$140,000 - $225,000 USD

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/ashby%3Acursor%3A6f67c0c9-717c-4eb2-919b-5ab7d54e9a8b and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.