# Zhicheng Z.

> Software Engineer @ Madison-Davis | MSCS @ Georgetown University

Location: New York City Metropolitan Area, United States
Profile: https://flows.cv/zhicheng

AI-focused software engineer
• 1+ YOE in LLM / RAG systems (retrieval optimization, query transformation, evaluation with RAGAS)
• 3+ YOE in distributed systems (scalable microservices, event-driven architecture)
Experienced in building and productionizing RAG systems with hybrid retrieval (BM25 + vector), improving grounding and answer quality.
Tech stack: Python, FastAPI, Airflow, PostgreSQL (PGVector), Java, Spring Boot, Kafka, Kubernetes
Interested in building reliable, production-grade AI systems.

## Work Experience
### Software Engineer @ Madison-Davis, LLC
Jan 2024 – Present | New York, United States

### Software Engineer @ Fiserv
Jan 2023 – Jan 2024 | New Jersey, United States
Software Developing

### Back End Developer @ Tencent
Jan 2020 – Jan 2020 | Shenzhen
Engaged in migrating KPI anomaly detection and alerting platform using Golang and gRPC framework, managed Protobuf messages with protoc.


## Education
### Master of Science - MS in Computer Science
Georgetown University

### Bachelor of Science - BS in Computer Software Engineering
Nankai University


## Contact & Social
- LinkedIn: https://linkedin.com/in/zhicheng-z-35805722b
- Portfolio: https://chriszzhong.github.io/Portfolio/

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Source: https://flows.cv/zhicheng
JSON Resume: https://flows.cv/zhicheng/resume.json
Last updated: 2026-04-13