I will build a custom multilingual ai application or rag pipeline

J
jcb2025
J
jcb2025
Jonathan B
build a custom multilingual ai application or rag pipeline
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build a custom multilingual ai application or rag pipeline

About this gig

I build production-grade AI systems, advanced RAG pipelines, and natively multilingual applications from scratch using Python, Go, Node.js, and React. As a former AI tech founder who successfully scaled and exited a platform serving universities across 17 languages, I focus on business scalability and clean code.


What I Build:

  • Custom RAG Pipelines: Connect your private documents or databases securely to LLMs using vector databases like Pinecone or Chroma.
  • Multi-Language Agents: Prompt engineering and pipelines designed for native English, Chinese, and Spanish context handlingnot just basic translated strings.
  • Enterprise API Integrations: Robust backend implementations with OpenAI and Claude utilizing structured JSON outputs and reliable error-handling.
  • Full-Stack Apps: Scalable web applications built end-to-end and deployed cleanly using Docker and AWS.


Every project includes modular, well-documented source code that you own entirely. No low-code shortcuts, just clean engineering designed to minimize latency and token costs.


Please message me with your project details before ordering so we can align on your technical architecture. Let's make it real.

  • Application Type

    • Web Application

  • Desktop Frameworks

    • Other

  • AI Type

    • Chat
    • Education
    • Productivity Tools
    • Custom

  • Programming Language

    • Go
    • JavaScript
    • Python
    • TypeScript

  • Web Frameworks

    • React
    • Express.js (Node.js)
    • Flask
    • Other

  • No & Low-Code Builders

    • Other

Get to know Jonathan B

Jonathan B

Software Engineer

  • FromUnited States
  • Member sinceMar 2025
  • Avg. response time1 hour

  • Languages

    Spanish, Chinese
Hi, I'm Jonathan, a software engineer with a Master's in CS from Brown and enterprise product experience most freelancers can't match. I co-founded an AI language platform, scaled it to professors across 17 languages, and successfully exited. Today, I engineer high-performance production systems handling petabyte-scale data infrastructure. I build custom AI apps, RAG systems, LLM pipelines, and full-stack web apps with Go, Python, Node, React, AWS, and Docker. Fluent in English, Chinese, and Spanish, I deliver genuinely multilingual AI and localization. Let's make your project real.

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