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choimyungbin/README.md

Hi, I'm Jessica ๐Ÿ‘‹

AI Engineer | Software Engineer

I build production-grade AI systems with a focus on
AI agents and real-time AI applications.


๐Ÿง  About Me

  • ๐Ÿ”น AI Engineer with strong SWE foundation (backend + full-stack)
  • ๐Ÿ”น Building LLM-powered agent systems (LangGraph, tool-based workflows)
  • ๐Ÿ”น Focused on LLMOps, RAG pipelines, and scalable AI infrastructure
  • ๐Ÿ”น Interested in latency optimization, cost efficiency, and reliability in production AI

โš™๏ธ Tech Stack

๐Ÿ’ก AI / LLM

  • LangGraph (multi-agent orchestration)
  • OpenAI / OpenRouter APIs
  • RAG (semantic + schema-aware retrieval)
  • Milvus (Vector DB)
  • Prompt Engineering & Tool Calling

๐Ÿ–ฅ๏ธ Backend

  • FastAPI (async, SSE streaming)
  • Python
  • SQLAlchemy
  • PostgreSQL
  • REST APIs

๐ŸŒ Frontend

  • React / Next.js
  • Tailwind CSS

โ˜๏ธ DevOps / Infra

  • Docker / Docker Compose
  • AWS (EC2)
  • Bitbucket Pipelines (CI/CD)
  • PM2
  • SonarCloud

๐Ÿ”— Integrations

  • SAP HANA
  • Salesforce
  • SharePoint
  • ServiceNow

๐Ÿ”ฅ Featured Project

๐Ÿงฉ HR Assist โ€” AI Agent Orchestration Platform

Production-grade multi-agent system integrating enterprise HR tools

Key Highlights

  • โšก Built LangGraph-based multi-agent system (supervisorโ€“worker architecture)
  • ๐Ÿ”— Integrated enterprise tools via MCP server with RBAC & audit trails
  • ๐Ÿง  Implemented schema-aware RAG for structured + unstructured data retrieval
  • ๐Ÿ“ก Designed real-time streaming (SSE) for interactive workflows
  • ๐Ÿš€ Reduced token usage by 75% and p95 latency by 80% with hybrid orchestration

Tech Used FastAPI LangGraph Milvus PostgreSQL AWS Docker SSE


๐Ÿ“Š What I Care About

  • โšก Efficient LLM systems (latency / throughput / KV cache optimization)
  • ๐Ÿง  Intelligent agent workflows (planning + tool use)
  • ๐Ÿ—๏ธ Production-ready AI (observability, scaling, reliability)
  • ๐Ÿ’ฐ Cost optimization in LLM applications

๐Ÿ“ซ Let's Connect

  • ๐Ÿ’ผ Open to AI Engineer / SWE opportunities
  • ๐ŸŒฑ Always learning about LLMOps, vLLM, and distributed inference

โญ๏ธ โ€œTurning LLMs into reliable, scalable systems.โ€

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  1. portfolio portfolio Public

    JavaScript