Staff+ Software Security Engineer (AI)

TL;DR

Staff+ Software Security Engineer (AI): Scoping, designing, and building complex security systems end-to-end for hirify.global's AI platforms with an accent on threat modeling, cryptographic foundations, and developer security. Focus on hardening CI/CD pipelines, architecting identity and secrets management, and implementing cloud/cluster security controls for trustworthy AI systems.

Location: Hybrid (San Francisco, New York City, Seattle). Must be based in or able to work from one of these US office locations at least 25% of the time.

Salary: $405,000 – $485,000 USD

Company

hirify.global is a public benefit corporation focused on creating reliable, interpretable, and steerable AI systems to be safe and beneficial for society.

What you will do

• Scope, design, and build complex security systems end to end, maintaining them through production.
• Identify systematic risks through threat modeling and risk assessment, then build the controls and infrastructure.
• Advance the developer security program by embedding security practices into the SDLC and developer workflows.
• Architect systems that protect sensitive assets, including model weights, customer data, and training datasets.
• Implement and maintain cloud security controls including IAM, network segmentation, and encryption.
• Build critical security foundations including cryptographic frameworks, mTLS infrastructure, and authorization systems.

Requirements

• At least 8 years of software engineering experience with deep security expertise, leading complex security initiatives independently.
• Bachelor's degree in Computer Science or equivalent industry experience.
• Strong programming skills in Python or at least one systems language such as Go, Rust, or C/C++.
• Deep understanding of identity systems, cryptographic primitives, and secrets management.
• Working knowledge of Kubernetes security primitives including RBAC, namespaces, and network policies.
• Experience leading cross-functional security initiatives and navigating complex organizational dynamics.
• Outstanding communication skills, translating technical concepts effectively.

Nice to have

• Designed or operated identity and secrets management systems for large-scale AI or cloud infrastructure.
• Built security frameworks or libraries adopted across an engineering organization.
• Led a developer security program including supply chain security and secure build infrastructure.
• Built or secured CI infrastructure using Nix, Bazel, or Kubernetes-based deploy systems.
• Understanding of Linux systems internals including namespaces, cgroups, and seccomp.

Culture & Benefits

• Work as a single cohesive team on a few large-scale research efforts, valuing impact over specific puzzles.
• Extremely collaborative group with frequent research discussions.
• Competitive compensation and benefits, with optional equity donation matching.
• Generous vacation and parental leave, plus flexible working hours.
• Visa sponsorship is available for eligible candidates.
• Lovely office spaces in San Francisco, New York City, and Seattle for collaboration.