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Senior Software Engineer, Security

PersonaSan Francisco, CA

About The Position

Persona builds identity verification infrastructure where security is core to everything shipped. Unlike most companies where system failures mean downtime, at an identity verification company like Persona, security failures can lead to real people's identities being compromised, highlighting the high stakes involved. With AI tools accelerating development and breaches becoming common, the gap between building and building securely is growing. Engineers who address this gap are crucial. This role is primarily a software engineering position, and while security curiosity is valued, a dedicated security background is not a prerequisite.

Requirements

  • 5+ years of software engineering experience
  • You've built and shipped systems at scale, not just advised on them
  • You own implementation end-to-end, from design to delivery
  • Clear communicator who can work across teams without losing technical depth

Nice To Haves

  • Proficient in Ruby on Rails
  • Experience with IAM, authn/authz frameworks, or identity protocols (OAuth, SAML, OIDC)
  • Familiarity with software supply chain security, secure SDLC, or AI/ML security risks
  • You've worked somewhere where PII or sensitive data was the core product

Responsibilities

  • Designing and building IAM systems that enterprise customers use to manage PII across global teams
  • Supply chain security as Persona's AI tooling and integrations expand
  • Building secure, convenient internal tooling for engineers as we scale AI usage

Benefits

  • medical
  • dental
  • vision
  • 3% 401(k) contribution
  • unlimited PTO
  • quarterly mental health days
  • family planning benefits
  • professional development stipend
  • wellness benefits

Career Resources

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