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Open nowFirst seen 3 days ago

Senior/Staff Security Engineer

Transparent Search Group151 open roles

Pay
$200,000 – $300,000 a year
Where
San Francisco, California, United States
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Your applicationOpen nowSenior/Staff Security EngineerTransparent Search Group · San Francisco, California, United States

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  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

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The clock on this job

Early applications get read.

12.1% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.1%7 days
  4. 19.1%14 days
  5. 35.6%30 days
  6. 52.7%60 days
This job: first seen 3 days ago

The posting

Senior/Staff Security Engineer

Company: Confidential — AI coworkers for IT teams

Location: San Francisco, CA - in person, Monday to Friday

Compensation: $200,000 - $300,000 base + 1-2% equity

Employment Type: Full-time

Visa Sponsorship: Available (H-1B, O-1, OPT)

About Init

Init is building AI coworkers for IT teams. Its security-focused IT product is an agent that registers as a governed identity in a customer's directory, requests scoped access for each task, escalates to a human for approval, runs in a fresh microVM with credentials the model never sees, and can operate systems it was never given an API for.

Init was founded in 2026 by Isaiah De La Fuente and Sazzad Islam. The team comes from Stanford, MIT and Delve, among others.

The Role

You will own the security posture of Init and its product end to end: application, cloud, network and the agent itself. This is a system with very little prior art, so the work is genuinely new. You will lead secure design reviews and threat modeling for an agent that holds a governed identity, requests scoped access and acts under human approval.

You will build security into the product rather than around it, and you will write the security architecture document that technical buyers read before they deploy. For a technical buyer, that document often decides the deal more than any certificate does.

What You Will Own

  • The end-to-end security posture: application, cloud, network and the agent itself
  • Secure design reviews and threat modeling for a governed-identity agent with scoped, approval-gated access
  • In-product security primitives: full per-customer isolation, credentials the agent uses but never sees, approval gates on write actions, a customer-controlled limit on what the agent can see and do, and audit trails complete enough to replay any run
  • The written security architecture that gates enterprise deployments and wins over technical buyers
  • External validation: penetration testing by a respected firm, required compliance frameworks, and enterprise security reviews
  • Incident readiness and response, with breach notification measured in hours
  • Continuous cloud and IAM auditing, with security scanning, secret detection and compliance checks built into CI
  • The internal bar for credential handling, data egress and endpoint policy

What You Bring

  • 4+ years of experience, with hands-on application and infrastructure security work
  • Production-quality code in Python, Go, Rust or TypeScript
  • Practical threat-modeling and vulnerability-identification skills
  • Hands-on network and identity security: identity-based controls, policy enforcement and workload IAM
  • Cloud security depth on at least one major provider, including identity federation and infrastructure as code
  • The ability to explain a risk trade-off clearly to both an engineer and a CIO in the same week
  • Comfort with high autonomy and ambiguity
  • Ability to work in person in San Francisco, Monday to Friday, at startup intensity

Nice to Have

  • Experience securing agentic or code-execution systems
  • Deep expertise in modern isolation: container security, kernel-level hardening, microVMs
  • Offensive security or penetration testing experience
  • Has run or owned a bug bounty or vulnerability disclosure program
  • Has taken a company through compliance frameworks and enterprise security reviews
  • Experience in or alongside enterprise IT and identity: directory services, SSO, PAM

Benefits

Meals in office, health insurance, unlimited PTO.

Interview Process

Culture screen, second culture screen, technical interview, then a one-day on-site.

Before you apply: get a free recruiter-readiness score for your resume at CareerStanding — about a minute, no signup, and your resume stays in your browser.

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