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Security Engineer

Town· EPD
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San Francisco, NYC$250k - $300kFull-timePosted 2mo ago

About the role

Security Engineer role focused on owning end-to-end security for Town’s autonomous assistant, securing product, data pipelines, infrastructure, and incident response in a multi-tenant SaaS environment.

Responsibilities

  • Own application and product security across the Town assistant and the agent action surface — the systems that read and act on user data across email, calendar, docs, Slack, and CRM.
  • Threat-model autonomous agent behavior: prompt injection, tool misuse, the "lethal trifecta" of untrusted input + sensitive data + external action, and the guardrails that contain it.
  • Secure the data pipeline behind Town's persistent model of each user — encryption, tenant isolation, access controls, and secrets management.
  • Harden our cloud infrastructure and third-party OAuth integrations (Google, Slack, CRM) against real-world attack.
  • Build the secure development lifecycle: design reviews, code review for security, dependency and supply-chain hygiene, and the tooling to scale it.
  • Stand up and run incident response — detection, triage, and clean postmortems.
  • Partner across engineering to make the secure path the easy path.

Qualifications

  • Have extensive experience in security engineering, with real depth in application and/or infrastructure security.
  • Can read and write production code — you fix problems, not just file them.
  • Have secured a multi-tenant SaaS product handling sensitive user data at scale.
  • Know your way around cloud security (AWS and/or GCP), authn/authz, secrets, and encryption in practice.
  • Threat-model instinctively and can explain risk to engineers and founders without hand-waving.
  • Want to be the person who owns security from the ground up, and move at startup speed doing it.
  • Get energy from working in person - we're 5x per week at our office in downtown SF.

Skills

Required:Application securityInfrastructure securityThreat modelingSecure SDLCIncident response
Last updated Aug 25, 2026. Interested? Apply on the company site.
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About Town

Town | The AI Assistant That Does the Work

Town, the AI assistant that manages your inbox, schedules meetings, and handles busywork — working quietly in the background for you.

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