Founding Security Engineer

My client in San Francisco, US is looking for:

Founding Security Enginee

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Full-time On-site San Francisco, CA Base between $230K - $30

0K
***US Citizens Greencard Holders and also Open to H1b Transfers/TN Visa

***
Why candidates should j

• oin:
  Founding security role at a rocketship company: You'd be Listen's first dedicated security engineer — building the entire security program from scratch at a Sequoia-backed Series B company that's grown 20x YoY in revenue. This is greenfield ownership with real im
• pact.World-class customers and investors: Customers include Anthropic, Google, Microsoft, Cursor, Perplexity, and Robinhood. Backed by Sequoia, Ribbit Capital, and Conviction with $100M ra
• ised.Direct report to the CTO: Flat org structure means you report directly to the co-founder/CTO with high visibility and autonomy. No layers of management between you and decision-ma
• kers.Strong comp: $230K–$300K base plus meaningful equity at a company with clear trajectory toward a major out
• come.Massive and meaningful threat surface: Listen holds voice, face, and device data on millions of people and works with 15% of the Fortune 500. This isn't checkbox security — you'll solve genuinely hard problems protecting sensitive data at s
• cale.Elite engineering team: You'd work alongside IOI medalists, competitive programmers, and engineers from Jane Street and Tesla Autopilot. The bar is high and the people are excepti
• onal.Growth potential: Start as a senior IC owning security end-to-end with the opportunity to build out a team and deepen scope as the company scales ra

pidly
Re

• quired7 - 15 years of experience in security engineering or software engineering transitioning to se
• curityHands- on experience spanning application security and infrastructure se
• curityBuilt a security program from s
• cratchThreat modeling and vulnerability assessment (pen tests, vulnerability scans, risk prioritiz
• ation)Can read and review code for security vulnerabilities (not purely GRC/compl
• iance)Cloud security architecture and multi- tenant isolation expe

rience
About th

is roleWe need someone with 7+ years of experience in security engineering who transitioned from a software engineering/CS background into security. You should be comfortable building a security program from scratch, spotting vulnerabilities in code and infrastructure, and working alongside engineers as they plan and build. Bonus points if you're open to being client-facing with enterprise cus

tomers.What you

• 'll do:Define and build Listen's security architecture from the ground up across the LLM pipeline, infrastructure, and
• productTake ownership of the entire security program as the first dedicated security hire, reporting directly to
• the CTOWork closely with engineering pods to identify vulnerabilities, run threat modeling, and ensure secure design patterns as features are planned and
• shippedHarden multi-tenant isolation and collaborate with the infra team on multi-region data re
• sidencyManage pen tests, vulnerability scans, and write lightweight policies that keep the platform compliant and actually
• secureOwn internal IT (devices, access, identity) and serve as the technical ground truth behind audits, questionnaires, and enterprise security
• reviewsContribute to and help evolve the security roadmap as Listen scales with Fortune 500 customers including Google, Microsoft, and An

thropic