Hi, I'm Youngwon
Backend engineer focused on Kotlin, Spring, system architecture, and AI service pipelines.
YK

About

I build backend systems that stay understandable under pressure: Kotlin and Spring services, Redis/Kafka-backed reliability patterns, OCI and k3s operations, and AI/RAG pipelines that can be shipped and monitored as real services.

Clarifies uncertain product ideas into stable service boundaries and delivery plans.
Optimizes slow or fragile systems with caching, indexing, concurrency control, and observability.
Connects backend, infrastructure, and AI pipeline work so services can be deployed and operated, not just prototyped.

Core Stack

Kotlin
Java
Spring Boot
Python
FastAPI
Redis
Kafka
RabbitMQ
PostgreSQL
MySQL
Docker
Kubernetes
Terraform
OCI
RAG Pipelines
Operating Services

Personal services running as one system

A compact map of the public services and infrastructure surfaces I operate or actively evolve.

Youngwon Platform
Live
GitHubServer

Youngwon Platform

A personal platform deployed as a public service surface: portfolio, backend APIs, server automation, and infrastructure managed across OCI and Kubernetes.

OCI
k3s
Docker
Nginx
Terraform
Portfolio Frontend
GitHubSource

Portfolio Frontend

A bilingual project hub for presenting operating services, architecture work, and CV depth without turning the landing page into a dense resume.

Next.js
TypeScript
Tailwind CSS
next-intl
AI/RAG Service Lab
GitHubGitHub

AI/RAG Service Lab

A service-pipeline workspace for prompt orchestration, retrieval experiments, and backend integration patterns around production-shaped AI features.

OpenAI
Python
FastAPI
Vector Search
Monitoring
Contact

Build with systems that hold up

For deeper career details, the CV page expands the architecture, performance, and infrastructure stories.

EmailCV
GitHub