Unknown Company

Senior Software Engineer, Agent Platform

new york, ny • Posted 4 days ago
Onsite Full Time Recruitment

Senior Software Engineer, Agent Platform

New York, NY


Is your CV ready If so, and you are confident this is the role for you, make sure to apply asap.

A recently-minted unicorn — valued at $1.5B and backed by top-tier growth investors — is building the AI infrastructure powering human-led creator commerce at scale, helping brands run performance-driven creator programs with the world’s top creators.


About the Role

This is a rare shot at building an AI infrastructure layer from the ground up — not a chatbot wrapper, but a full agent orchestration platform every internal AI agent runs on. You’ll join a small, elite team defining how autonomous agents get built, evaluated, and trusted in production, inventing the abstractions the company’s AI strategy will run on for years.


What You’ll Do

  • Architect the orchestration core powering autonomous, multi-step AI agents — triggers, durable workflows, and runs that can pause and resume around human judgment
  • Build the tool layer that gives agents real-world capability: live integrations with Slack, Linear, GitHub, Notion, and MCP, plus a dynamic tool registry
  • Build the console agent managers use to create, evaluate, and iterate on agents in real time (React)
  • Solve the hard, mostly-unsolved problem of making nondeterministic AI behavior legible — run tracing, evals, feedback loops, cost attribution
  • Design and ship APIs in TypeScript/NestJS on Postgres, deployed on AWS


You’re Energized By

  • Working at the frontier — durable execution, human-in-the-loop, memory, and evals for nondeterministic AI systems are problems you’ll help define, not inherit
  • Platform engineering with your users in the building: feedback on your AI infrastructure arrives in hours, not quarters
  • Finding the elegant abstraction that turns a one-off agent into a repeatable capability
  • Being early enough that your technical calls become the company’s AI architecture


What We’re Looking For

  • Strong TypeScript, Node. xhqgsiq js, and relational database fundamentals
  • Real experience building systems other engineers build on — internal platforms, frameworks, orchestration or developer tooling
  • Genuine hands-on AI/agent experience: tool calling, context and memory design, evaluating nondeterministic behavior
  • Experience deploying and operating production services on AWS
  • AI-assisted development (Claude Code, Cursor, or similar) as a core part of how you already work
  • 5+ years of professional software engineering experience


Unable to offer visa sponsorship at this time. Must be a U.S. citizen or green card holder

Senior Software Engineer, Agent Platform in new york at Unknown Company

This position is listed as full time and onsite.

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