Senior/Staff Software Engineer (AI)

TL;DR

Senior/Staff Software Engineer (AI): Building the infrastructure that enables Claude to act autonomously in the world, including execution environments, state management systems, and security boundaries. Focus on designing sandboxed compute environments, developing authentication and authorization frameworks, and creating observability tools for agent execution.

Location: San Francisco, CA | New York City, NY | Seattle, WA. Expect all staff to be in one of our offices at least 25% of the time.

Salary: $320,000 - $485,000 USD

Company

hirify.global’s mission is to create reliable, interpretable, and steerable AI systems.

What you will do

• Design and build sandboxed compute environments where Claude can safely execute code, access tools, and interact with external services.
• Build state management systems for long-running agent tasks—handling checkpoints, recovery, and resumption across failures.
• Develop authentication and authorization frameworks for delegated access—enabling Claude to act on behalf of users securely.
• Create observability and debugging tools for agent execution—understanding what Claude did, why, and how to make it better.
• Partner closely with product and research teams to define what's possible and ship it.

Requirements

• Have 6+ years of experience building distributed systems, infrastructure, or platform services at the hyper scale.
• Comfortable building Cloud Native infrastructure on GCP, AWS, or Azure.
• Care deeply about security, isolation, and building systems that fail safely.
• Have experience with containers, sandboxing, or secure execution environments (e.g., gVisor, Firecracker, V8 isolates).
• Write clean, maintainable code in Python, Go, Rust, or similar.
• We require at least a Bachelor's degree in a related field or equivalent experience.

Nice to have

• Experience building multi-tenant execution platforms or serverless infrastructure.
• Background in security engineering, sandboxing, or isolation technologies.
• Familiarity with workflow orchestration systems (Temporal, Airflow, Step Functions).
• Experience with state machines, checkpointing, or durable execution patterns.
• Low-level systems experience (Linux internals, eBPF, container runtimes).

Culture & Benefits

• Competitive compensation and benefits.
• Optional equity donation matching.
• Generous vacation and parental leave.
• Flexible working hours.