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Founding Engineer

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Jinba

B2B

Founding Engineer

San Francisco
On-site
Full-time
Posted Dec 14, 2025
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Engineering
On-site

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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Jinba logo

Jinba

Company profile

Automate any enterprise workflow through chat

View Jinba

Headquarters

San Francisco, CA, USA

Team size

1-10

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