Senior Security Engineer, Product

Department: Security

Location: San Francisco

Compensation: $150K – $220K • Offers Equity

Employment Type: FullTime

About Persona

Persona is the configurable identity platform built for businesses in a digital-first world. Verifying individuals and organizations is harder — but more important — than ever, with AI enabling fraudsters to launch sophisticated accounts at scale and regulations evolving rapidly.

We’ve built Persona to support practically every use case and industry — that’s why we’re able to serve a wide range of leading companies. For example, Reddit relies on Persona for age assurance and verification to comply with online safety regulations, protecting younger users while maintaining a seamless experience. Meanwhile, OpenAI relies on Persona to keep bad actors out, protecting one of the world’s most powerful AI platforms from large-scale abuse in a time when AI is reshaping the way we work and live.

We’re growing rapidly and looking for exceptional people to join us!

About the Role

The Persona Security Team is looking for a Product Security engineer to help shape how our products protect highly sensitive identity data as the platform grows and evolves. As a platform built from and built for individual identities, security is not a layer we add later – it is core to our identity and embedded in everything we build.

In this role, you will partner closely with product and engineering teams to design secure product experiences, assess risk across new features, and ensure security scales alongside rapid product development. You will think proactively about threats, influence product decisions, and help build protections that keep Persona trusted by businesses and their users.

This position is based at our headquarters in San Francisco. We offer relocation assistance for candidates located outside the San Francisco Bay Area.

What you'll do at Persona

• Own and evolve Persona’s product security foundations to protect highly sensitive identity and PII data at scale

• Drive security strategy and risk decisions in partnership with product and engineering leaders, enabling rapid product development without compromising trust

• Architect and scale security controls, tooling, and monitoring that are embedded across Persona’s products and core development workflows

What you'll bring to Persona

• Experience. 4+ years of software engineering, 2+ years of product security at a fast-moving technology company.

• Experience securing a large Ruby on Rails application.

• Communication and Collaboration skills. Ability to explain security topics clearly to non-technical business representatives. Drive to enable other engineers to ship securely.

• Bias toward shipping. Improving our product quickly and continually is one of Persona’s greatest strengths. You should be excited about finding ways to integrate security into our product delivery processes without slowing things down.

• Proactive approach to solving problems. We’re looking for someone that can tell us how to solve our problems, not someone who waits to be told how to solve problems.

• Passion for security. You should be excited about keeping your skills and knowledge sharp, and sharing that with your peers and the rest of the company.

Full-time Employee Benefits and Perks

For full-time employees (excluding internship and contractor opportunities), Persona offers a wide range of benefits, including medical, dental, and vision, 3% 401(k) contribution, unlimited PTO, quarterly mental health days, family planning benefits, professional development stipend, wellness benefits, among others. While we believe competitive compensation and benefits are a critical aspect of you deciding to join us, we do hope you consider why our core values and culture are right for you. If you’d like to better understand what it’s like working at Persona, feel free to check out our reviews on Glassdoor.