Software Development Engineer III / Sr. Software Development Engineer (AI Platform)

TL;DR

Software Development Engineer III / Senior Software Development Engineer (AI Platform): Building a secure execution platform for enterprise AI agents with an accent on runtime isolation, policy enforcement, and deterministic controls. Focus on designing high-impact sandbox execution, improving scalability for high-concurrency workloads, and implementing secure data access pathways.

Location: Hybrid in Boulder, CO, USA (must spend at least 50% of time per quarter in the office)

Salary: $156,000 – $234,000 USD

Company

hirify.global is a Fortune 500 company and a leading AI platform for managing people, money, and agents.

What you will do

• Design and implement core runtime services for secure, isolated agent execution.
• Build deterministic enforcement pathways for data, context, tool, and model boundaries.
• Define and evolve service interfaces and contracts across maincar and sidecar components.
• Optimize performance, scalability, and resilience for high-concurrency workloads.
• Develop deep observability into runtime behavior, policy decisions, and audit traces.
• Mentor engineers and participate in architecture reviews and operational hardening.

Requirements

• Experience: 5-8+ years in software development, with 3-6+ years specifically in backend or platform systems.
• Technical Skills: Proficiency in at least one systems or backend language (Java, Go, Rust, or Python).
• Domain Knowledge: Strong experience with distributed systems, APIs, and service-oriented architecture.
• Security: Experience building secure systems with least-privilege patterns and policy controls.
• Operational Excellence: Proven ability to operate production services with strong reliability and observability practices.
• Location: Must be based in the USA and able to maintain a hybrid presence in Boulder, CO.

Culture & Benefits

• Flex Work policy combining in-person collaboration and remote flexibility (50% office presence).
• Comprehensive total compensation package including bonus plans and annual refresh stock grants.
• Culture rooted in integrity, empathy, and shared enthusiasm.
• Investment in long-term employee growth, providing tools and trust to take risks.