About the job
About the Role
In this pivotal position, you will spearhead the complete development of our core agentic workflow engine and Copilot—an innovative AI assistant designed to facilitate developers in creating and troubleshooting workflows through natural language, transforming abstract intentions into actionable, dependable agents. This role encompasses our backend (Next.js), orchestration layer, and all integrations with LLMs and external APIs.
As the current leading tool for constructing workflows using natural language, your mission is to preserve and enhance its status—ensuring it remains swift, reliable, and adept at managing increasingly intricate agentic architectures.
This foundational role allows you to establish architectural decisions, reliability benchmarks, and coding patterns that will define the functionality of our core product. Collaborating within a team of five, your contributions will be deployed to tens of thousands of developers on rapid release cycles.
What You'll Do
Take ownership of the agentic workflow engine: the runtime responsible for executing multi-step, tool-utilizing agent workflows in production.
Develop and enhance Copilot—our natural language interface for creating, modifying, and debugging workflows.
Design and sustain integrations with LLM providers (OpenAI, Anthropic, Google, local models via Ollama) and external APIs.
Architect the orchestration layer that transforms visual flows into reliable, observable agent executions.
Establish technical standards for the codebase—covering reliability, testing, code quality, and architectural patterns.
Engage across the stack in our Next.js monorepo, delivering to production daily.
Troubleshoot complex issues at the nexus of LLMs, distributed systems, and developer tooling.
What We're Looking For
A capable generalist engineer with a history of deploying complex distributed systems or developer tools into production.
Extensive experience with TypeScript/JavaScript and Bun; familiarity with working in a Next.js monorepo.
Proven record of owning and managing production systems—you've been on call, debugged challenging issues, and ensured reliability.
Experience integrating with LLMs or building upon foundational model APIs.
Demonstrated high agency and ownership—within a small team, you help define the roadmap as much as you execute it.
Strong architectural opinions that are adaptable—you prioritize building correctly while maintaining rapid development.
Experience with AWS infrastructure is a plus.

