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Software Engineer, Agents

Owns end-to-end development of agentic workflow engine and AI Copilot for natural language workflow creation/debugging. Builds LLM integrations, orchestration layer, and maintains production reliability in Next.js monorepo.

140k – 220kSan Francisco, CABackend EngineeringOnsite

About the role

Responsibilities

  • Own the agentic workflow engine: the runtime that executes multi-step, tool-using agent workflows in production
  • Build and evolve Copilot — our natural language interface for creating, editing, and debugging workflows
  • Design and maintain integrations with LLM providers (OpenAI, Anthropic, Google, local models via Ollama) and external APIs
  • Architect the orchestration layer that turns visual flows into reliable, observable agent executions
  • Set technical standards for the codebase — reliability, testing, code quality, and architecture patterns
  • Work across the stack in our Next.js monorepo, shipping to production daily
  • Debug hard problems at the intersection of LLMs, distributed systems, and developer tooling

Requirements

  • Strong generalist engineer who has shipped complex distributed systems or developer tools to production
  • Deep experience with TypeScript/JavaScript and Bun; comfort working in a Next.js monorepo
  • Track record of owning and operating production systems — you've been paged, you've debugged the weird ones, you've made things reliable
  • Experience integrating with LLMs or building on top of foundation model APIs
  • High agency and ownership — on a team this small, you define the roadmap as much as you execute it
  • Strong opinions on architecture, loosely held — you care about building things right but move fast

Nice-to-Haves

  • Experience with AWS infrastructure
  • Contributions to open-source projects

Skills

TypeScriptJavaScriptNext.jsBunLLMsOpenAIAnthropicAWSDistributed SystemsAgentic Workflows

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