Senior Software Engineer

The Role:

• Own the platform that every Stello agent runs on: orchestration, evaluations, observability, and guardrails.
• Build the shared foundation so each new deployment ships faster and breaks less.

What You Will Do:

• Design and build orchestration for long-running, multi-step agents.
• Build controls like permissions, rate limits, human review steps, and safe failure modes.
• Turn patterns from client work into reusable components for the delivery team.

What We Look For:

• 5+ years building and supporting production software that people depended on.
• Experience with distributed systems, queues, or workflow engines.
• You use coding agents every day and know how to review what they write.

How We Work:

• Full-time remote role for candidates authorized to work in the United States.
• Small team reporting directly to founders, with travel to client sites when needed.