Software Engineer, Security

Persona builds identity verification infrastructure. Security isn't a layer we add later. It's core to everything we ship. At most companies, a security failure means downtime. Here, it means a real person's identity is compromised. The stakes at Persona are different. AI is raising the bar on both sides: it's making breaches more common and more damaging, and it's letting us build systems in-house that used to be out of reach, changing how we think about build vs. buy in real time. The engineers who can move fast on both are the ones this role is for. This is a software engineering role first. Security curiosity matters while a dedicated security background doesn't. The team runs more like infrastructure than a typical security org: not in a silo, a lot of what we ship is core product code, and you'll be building alongside other engineering teams, not just configuring what they've already built.

Responsibilities

Designing and building IAM systems that enterprise customers use to manage PII across global teams; Internal IAM solutions for least-privilege access across the entire company; The framework that encrypts hundreds of distinct columns with sensitive data; Supply chain security as Persona's AI tooling and integrations expand; Building secure, convenient internal tooling for engineers as we scale AI usage

Requirements

3+ 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 to operation; Clear communicator who can work across teams without losing technical depth; Willingness to operate in multiple languages, infrastructures

Nice to have

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

Benefits

Medical, dental, and vision; 3% 401(k) contribution; Unlimited PTO; Quarterly mental health days; Family planning benefits; Professional development stipend; Wellness benefits; Relocation assistance