Staff Software Engineer

Job Summary

Owning the core execution model and platform architecture, the full-time Staff Software Engineer will design platform APIs, ensure system correctness, and drive architectural standards while working remotely or from Seattle, WA, or McLean, VA.

Key responsibilities

• Develop the core execution model, including state machine and lifecycle management
• Design platform APIs/SDKs to connect workflows, agents, and tools while ensuring versioning and compatibility
• Engineer reliability at scale, incorporating concurrency controls, rate limits, and workload isolation

Required qualifications

• 10+ years of experience building distributed/platform systems with significant architectural responsibilities
• Deep expertise in durable execution models, including state machines and event sourcing
• Proven track record in security and governance for production systems
• Strong systems design skills across storage, queues, and evented architectures
• Proficiency in a modern programming language such as Go, Rust, Java, or TypeScript