At 17, I took on a government-funded project—unfamiliar domains,
tight deadlines and resource constraints, everyone thought it was impossible.

Under pressure, I dove deeper into system development, grew alongside my teammates,
secured $33K investment, and built a new project room at Software Meister High School.

2014. Junior (real jr. age lol)

First software development in elementary school. Built 'FLY', an RPG game about a chicken seeking legendary wings to fly,
competing against other human adventurers who also want to fly.

10+ Projects. ↗

School OAuth system, nationwide dormitory management system, 10+ projects developed/operated, early-stage project development, hackathon AWS corporate award, SW-Wave booth operation.

HonestAI. 2024. Dec ~ Now ↗

Server Developer at a Vertical AI fintech company. Developed B2B savings bank BaaS model, jvm/k8s observability, tcp performance tuning, Netty system bottleneck analysis/improvement, and load testing with locust/k6.

Argus

JavaCLIWeb DashboardJFRasync-profilerSpring Boot

Open-source JVM observability platform that unifies jcmd, JFR, and async-profiler. 33 CLI commands and a real-time web dashboard — both provide heap analysis, thread dumps, GC monitoring, flame graphs, and virtual thread tracking. Attaches to any running JVM (Java 11+) without an agent. Prometheus/OTLP export, Micrometer bridge, and Spring Boot starter included.

kar98k

GoHTTP/2gRPCTUIPrometheusPoisson

Open-source 24/7 traffic simulation and performance testing SDK in Go. Generates realistic traffic with Poisson-distributed spikes, time-of-day scheduling, and micro-fluctuations instead of flat constant load. Supports HTTP/1.1, HTTP/2, gRPC with interactive TUI, adaptive TPS discovery, and Prometheus metrics.

bestwork-agent

Claude CodenpmMulti-AgentOrchestrationTUI

A Claude Code harness that orchestrates multi-agent teams modeled after real engineering orgs. Auto-dispatches hierarchy (CTO → Lead → Senior → Junior) or squad (flat parallel) compositions based on task complexity. 14 specialist roles, 49 domain agents, anti-hallucination controls (file grounding, typecheck, scope lock), and session observability TUI with loop detection and productivity scoring.

Fix mmap failure check and munmap size in OS::copyFile on macOS

Simplify ServerRequestExtensions.queryParamOrNull()

Use idiomatic Kotlin in Map Health Indicators to Micrometer Metrics example

Improve BatchMessagingMessageConverter toMessage() implementation

Fix syntax errors in link formatting in adoc files

Change method return condition for connectionFactory.isPublisherConfirms()

Improve functional logic in SQL Statement classes

Update FlowResponseConverterFunctionProvider type extension toClass()

Support arithmetic function CEILING

Improve auto-completion with table prioritization and horizontal scrolling

KotlinConf'24 Global. 2024. 06. 13

Presented at JetBrains KotlinConf Global in South Korea.
Topic: Project Valhalla, JVM Type System, and Value Class Benchmark. [Sample Code]

IT Union Conference. 2025

Speaker at Meister Developer IT Union Conference. Topic: Carpe Diem - Software development skills and individuality, development principles, and developer growth.

GSM DevConf. 2023

Speaker at GSM(Software Young Meister) DevConf. Topic: Growth of Developer - Developer's growth curve, direction, and the mindset to pursue.