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.