Senior Software Engineer, Product & AI Security

TL;DR

Senior Software Engineer (Product & AI Security): Designing, building, and operating security foundations for hirify.global's products and AI/LLM experiences with an accent on authentication, authorization, and data protection at scale. Focus on detecting and mitigating account takeover, building security platforms, and tackling ambiguous AI/LLM security problems.

Location: Hybrid (2-3 days per week in office) in San Francisco Bay Area, Denver, or New York City, USA

Salary: $186,000–$210,000

Company

hirify.global is a product company focused on providing payroll, health insurance, 401(k)s, and HR services to small businesses across the US.

What you will do

• Design, build, and operate authentication and authorization systems that work at scale.
• Strengthen core services and data protections, including access control, storage, and APIs.
• Detect and mitigate account takeover and other forms of abuse for customers.
• Build security platforms and tooling that help product and AI teams move quickly and safely.
• Own and improve high-availability security and identity services that other teams depend on.
• Tackle ambiguous AI/LLM security problems from threat modeling to practical mitigations and promote security and software engineering excellence.

Requirements

• 7+ years of experience as a backend engineer, building and operating large-scale server-side services and APIs.
• Deep experience with authentication and authorization, such as SAML/SSO, RBAC, and ABAC.
• Proven track record building secure, highly available distributed systems and services.
• Hands-on experience with modern security tooling and practices (e.g., SAST, DAST, SIEM, SCA).
• Proficiency in one or more of: Ruby, Python, Kotlin, JavaScript/TypeScript.
• Experience with AI tools for coding (e.g., Cloud Code, Cursor, Github Copilot).
• US work authorization is required.

Nice to have

• Experience with authorization platforms/policy engines (e.g., Open Policy Agent, SpiceDB).
• Experience with technologies like GraphQL, gRPC, Kubernetes, Terraform, Traefik, Flask, Okta.

Culture & Benefits

• Mission to grow the small business economy by handling payroll, health insurance, 401(k)s, and HR.
• Teams in Denver, San Francisco, and New York.
• Proud to support more than 400,000 small businesses across the country.
• Committed to building a workplace that represents and celebrates customers.
• Provides reasonable accommodations for qualified individuals with disabilities and disabled veterans.
• Offers stock equity in addition to cash compensation.