
Alexander Domnikov Jr.
AI/ML Engineer • MSCS (AI) @ Georgia Tech
AI/ML engineer building production LLM agents, RAG pipelines, and the data platforms underneath them (Python, SQL, Azure). MSCS (AI Specialization) candidate at Georgia Tech. Healthcare and finance domain depth, including two years in equity research.
Languages
Python
C++
SQL
AI & ML
LangChain
LangGraph
LangSmith
Hugging Face
Groq
XGBoost
scikit-learn
Pandas
NumPy
Infra, Backend, & Tools
Azure
pgvector
DuckDB
PostgreSQL
SQLAlchemy
FastAPI
Docker
GitHub Actions
Personal Projects

Healthcare RAG Agent
3-tool LangGraph RAG agent over CMS Medicare regulations. Hybrid retrieval (pgvector + BM25 fused with RRF) and a BGE cross-encoder reranker achieve 100% routing accuracy and 1.00 Recall@5. Deployed with a FastAPI/SSE streaming backend and an MCP server. Built with Python, LangGraph, pgvector, and FastAPI.