Founding Engineer
Department: Engineering
Location: San Francisco
Compensation: $140K – $250K • 0.25% – 1%
Employment Type: FullTime
About the Role
Full-stack engineer who understands vibe coding tools and how recent AI frameworks work. You'll build both frontend and backend for our enterprise workflow automation platform.
Responsibilities
Architect and build both frontend and backend systems powering our vibe coding platform
Define technical strategy: system design, data modeling, service boundaries, and infrastructure choices
Integrate AI models and build reliable natural language to action pipelines
Collaborate directly with customers to translate enterprise needs into product solutions
Evolve infrastructure for reliability, observability, and performance at enterprise scale
Ship fast while building sustainable, maintainable systems
Requirements
Experience
5+ years building products quickly
TypeScript (backend and frontend), React
Deep understanding of system design, database architecture, and scaling distributed systems
Modern deployment and infrastructure (Vercel, Cloudflare Workers). Infrastructure as code (Terraform). CI/CD pipelines (GitHub Actions)
Experience with AI frameworks (Vercel AI SDK, Mastra) and patterns (agentic loops, tool calling, streaming, MCP)
Bonus
Understanding of tools like OpenCode and how they work
Shipped AI/LLM products to production.
LLM observability and production debugging (Langfuse, Datadog).
Experience at early-stage startups
Major contributions to OSS projects
Mindset
Founder mentality: hard work, independence, ownership
Ready to work in person in San Francisco
About Jinba
We help large enterprises build automated workflows using plain English. Unlike traditional no-code tools that bolt a chat agent onto their interface, Jinba is built as a native vibe coding platform from the ground up.
YC W26. International team across SF and Tokyo. Growing fast with major enterprise contracts.
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