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Jinba.io

Posted 5 months ago

Open

Founding Engineer

San FranciscoOn-siteFull-time

AI Summary

Full-stack engineer who builds both frontend and backend for an enterprise workflow automation platform, shaping system design, data models, and infra choices while integrating AI models and translating enterprise needs into product solutions.

About this role

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.

Skills

Agentic LoopsBackendCI/CDCloudflare WorkersDatabase ArchitectureDataDogDistributed SystemsFrontendGitHub ActionsLangFuseLLM ObservabilityMastraMCPOpenCodeProduction DebuggingReactStreamingSystem DesignTerraformTool-callingTypeScriptVercelVercel AI SDK

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