Founding Engineer

Jinba

• $150K — $180K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of product development experience
  • Proficiency in TypeScript and React
  • In-depth knowledge of system design and database architecture
  • Experience with modern deployment technologies like Vercel and Cloudflare Workers
  • Familiarity with AI frameworks and patterns such as agentic loops and tool calling

Responsibilities

  • Architect and implement frontend and backend solutions for the vibe coding platform
  • Define and execute technical strategies for system design and infrastructure
  • Integrate AI models for natural language processing and action pipelines
  • Collaborate with customers to translate requirements into effective product features
  • Enhance infrastructure for reliability and performance on an enterprise scale
  • Deliver updates rapidly while ensuring systems are maintainable

Benefits

  • Work in a dynamic environment with an international team
  • Opportunity to work in-person in San Francisco
  • Engagement in innovative projects with major enterprise contracts
  • Contribute to a pioneering native vibe coding platform
  • Be part of a rapidly growing startup backed by Y Combinator
Full Job Description
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


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