{"id":745878,"url":"https://alion.io/job/town-security-engineer","title":"Security Engineer","company":{"id":687173,"name":"Town","domain":"town.com","url":"https://alion.io/company/town-4","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Security","role_family":"Security","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States","New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":250000,"max":300000,"currency":"USD","period":"year","gross":null,"usd_annual":300000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"GCP","optional":false},{"name":"Slack","optional":false},{"name":"Threat Modeling","optional":false}],"status":"live","first_seen_at":"2026-08-19T21:42:31Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-11-01T20:45:54Z","board_verified":true,"closed_at":null,"days_open":73,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":73},"description":"About Town\nTown is building the AI coworker for every team. Everyone gets their own Townie, an AI assistant that learns how you work (your voice, judgment, relationships, and priorities) and does real work on your behalf across email, calendar, docs, Slack, and CRM. Townies don't wait to be prompted. They observe, learn, and act. And because every teammate has one, Townies can ask each other questions and hand off work, so the whole team moves faster together.\nFour months after our public launch, we became a $1B company. We recently raised a $108M Series B, co-led by Forerunner Ventures and Menlo Ventures, with continued support from Andreessen Horowitz, First Round Capital and angels such as Zach Perret, Soleio Cuervo, Scott Belsky, and more. Our founders, Jean-Denis and Tony, previously led EPD at Plaid and applied AI product at Google.\nAbout the role\nTown holds the keys to a person's entire working life. To do real work on someone's behalf, it reads their email, moves through their calendar, acts in their docs, Slack, and CRM. This means that security is absolutely paramount. We're looking for a dedicated Security Engineer to own that surface end to end.\nYou'll set the security bar for a company whose whole premise is trusted, autonomous access to sensitive data. That means securing the product and the agent that acts inside it, hardening the infrastructure and data pipeline behind it, and building the practices - threat modeling, secure SDLC, incident response. etc. that let us move fast without betraying that trust.\nWhat you'll do\nOwn 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.\n\nThreat-model autonomous agent behavior: prompt injection, tool misuse, the \"lethal trifecta\" of untrusted input + sensitive data + external action, and the guardrails that contain it.\n\nSecure the data pipeline behind Town's persistent model of each user - encryption, tenant isolation, access controls, and secrets management.\n\nHarden our cloud infrastructure and third-party OAuth integrations (Google, Slack, CRM) against real-world attack.\n\nBuild the secure development lifecycle: design reviews, code review for security, dependency and supply-chain hygiene, and the tooling to scale it.\n\nStand up and run incident response - detection, triage, and clean postmortems.\n\nPartner across engineering to make the secure path the easy path.\n\nYou might thrive here if you...\nHave extensive experience in security engineering, with real depth in application and/or infrastructure security.\n\nCan read and write production code - you fix problems, not just file them.\n\nHave secured a multi-tenant SaaS product handling sensitive user data at scale.\n\nKnow your way around cloud security (AWS and/or GCP), authn/authz, secrets, and encryption in practice.\n\nThreat-model instinctively and can explain risk to engineers and founders without hand-waving.\n\nWant to be the person who owns security from the ground up, and move at startup speed doing it.\n\nGet energy from working in person - we're 5x per week at our office in downtown SF\n\nLocation\nIn-person in San Francisco's Financial District, five days a week. 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