Founding Engineer

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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