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Founding EngineerCarnot Inc (Jinba) · San Francisco

Carnot Inc (Jinba)

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Founding Engineer

🗓️ Posted 2025-12-14 San Francisco Fulltime Hybrid ICT
💰 Salary Not shared 📊 Market 14,000 JPY–22,000 JPY/mo

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

  • ● + 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)
  • ● Understanding of tools like OpenCode and how they work
  • ● Shipped AI/LLM products to production.
  • ● LLM observability and production debugging (Langfuse, Datadog).
  • ● Major contributions to OSS projects
  • ● Founder mentality: hard work, independence, ownership
  • ● Ready to work in person in San Francisco
  • ● 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.