Founding Engineer

Jinba.io • San Francisco, CA

7d • Onsite

About The Position

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.

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)

Nice To Haves

• 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

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

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed