Samsung Backend Engineer | Incoming UIUC MCS

Software Engineer
Eunwha Park

Backend engineer with a focus on data infrastructure and AI-native tooling. I build systems that are reliable at scale — and recently, systems that help AI work better with real knowledge.

3+
Years Experience
UIUC
MCS
Incoming 2026
9
Merged OSS PRs
AWS
Solutions Architect Pro

Experience

Where production scale teaches you things side projects can't

Samsung Electronics
Backend Software Engineer
Jan 2023 - Present

More than three years at Samsung on backend systems serving nearly half a billion users globally. Most of that time was spent on problems where "just rewrite it" isn't an option — running services can't stop, and data loss isn't acceptable. That constraint teaches you to think differently.

Large-scale migration Distributed systems Cloud-native operations Data consistency Kotlin · Java · Spring Boot AWS · EKS · DynamoDB · Cassandra

Education

Computer science foundations, systems, and steady curiosity

University of Illinois Urbana-Champaign
Incoming Master of Computer Science (MCS)
2026 - 2028
Incoming graduate study to deepen systems, algorithms, and AI infrastructure foundations.
Kyungpook National University
Mobile Engineering
2019 ~ 2023
GPA 4.45 / 4.5
Ranked 1st out of 33 students

Selected Projects

Personal infrastructure, built outside of work

ContextWiki / MCPContentSearch
AI Infrastructure Project
Built to solve my own problem — knowledge scattered across Notion, GitHub, Obsidian, and my blog with no single place to search. It has a citation-gated answer engine with document lifecycle management (dedup, tombstones, stale cleanup), exposed via MCP protocol to Claude Desktop so retrieval happens in context, not in a separate tab.
Python FastMCP LlamaIndex ChromaDB SQLite Citations

Open Source Contributions

Merged upstream work in Apache Zeppelin and Kubernetes documentation

🏆 Grand Prize
Apache Zeppelin
Grand Prize recipient in Korea's national open source contribution program, with merged Java interpreter fixes focused on reliability, readability, and maintainability. Additional cleanup and refactoring contributions merged upstream.
Java Reliability Refactoring Interpreters
Kubernetes Website
Merged Korean documentation synchronization for the ingress-minikube guide, keeping localized Kubernetes learning material aligned with upstream English docs.
Kubernetes Docs Localization Markdown

Skills & Focus

☁️
Backend & Data Systems
Java, Kotlin, Python
Spring Boot, Batch Systems
DynamoDB, Cassandra, MySQL
🖥️
Cloud & Delivery
AWS, EKS, Kubernetes
Docker, Jenkins
GitHub Actions
🤖
AI Infrastructure
MCP Protocol, RAG Pipelines
LlamaIndex, ChromaDB, FastMCP
Vector Search, Document Lifecycle

Contact

Happy to talk about backend systems, infrastructure, or the next good problem