Lead Security Engineer (AI)

Location: On-site in San Francisco, United States

Base salary: $150,000–$300,000 per year, plus equity.

Company

hirify.global is building an open superintelligence stack combining compute, environments, evaluations, secure sandboxes, high-performance training, and deployment for frontier AI teams.

What you will do

• Harden cloud, GPU, and server infrastructure across hosted and customer-controlled environments, including Linux, Kubernetes, networking, and tenant isolation.
• Build security telemetry, audit trails, detections, and actionable alerts for suspicious access, workload behavior, and data movement.
• Lead incident response from investigation and containment through recovery, postmortems, and lasting fixes.
• Own vulnerability prioritization and remediation, coordinating urgent patches with infrastructure and product teams.
• Build secure defaults for identity, secrets, data access, and deployment pipelines for enterprise and sovereign requirements.
• Run threat models and penetration tests, identify weaknesses, and turn findings into shipped improvements.

Requirements

• Experience securing critical production systems carrying sensitive customer data or proprietary IP, ideally for demanding enterprises, research labs, or private and on-premises deployments.
• Experience responding to real security incidents, including explaining what happened, what was missed, and what was changed.
• Strong understanding of Linux, cloud IAM, networking, and container boundaries, with experience shipping production-ready controls.
• Ability to write code, detections, tooling, and infrastructure changes to remediate vulnerabilities.
• Ownership of ambiguous problems, practical risk assessment, and clear communication.
• Lead-level individual contributor scope, with the possibility of managing people over time.

Culture & Benefits

• Full visa sponsorship and relocation support.
• Professional development budget for courses and conferences.
• Quarterly team off-sites, hackathons, conferences, and learning opportunities.
• Collaboration with the security team, CTO, and Head of Engineering while helping grow the security function.