About
김동환
Founder / Full Stack Developer
A Tech Hub Connecting Values
FullstackHub acts as a Hub connecting Technology with Business, and Companies with Customers. We solve complex technical challenges to deliver essential business value.
Core Competencies
High-Performance Async Servers (Spring Webflux, NestJS)
Cross-Platform App Development (Flutter, React Native)
Large-Scale Traffic Architecture Design & Optimization
Leading Development Teams & Engineering Culture
Experience
Fitness / Diet
Juvis Diet
FIET
Blockchain / Crypto
Klaytn
Tech Lead — Global dating app 'Hangout' development
Backend Lead — NFT Launchpad & MARBLEX admin system development
Lead Engineer — Klaytn-based Web3 investment platform PoC
LINE
Senior Software Developer — Crypto exchange development
Senior Software Developer — Crypto trading system development
Server Part Lead — Action RPG development
Hanwha Life
Game
NHN Entertainment
Neowiz Games
Barunson Interactive
SM Ludus
Key Corporate Projects
JUVIS Diet ERP
Enterprise ERP for managing customers, HR, attendance, finance, e-documents, assets, and permissions across HQ and branches.
FIET InMotion
AI Measurement & Evaluation Exercise Solution
Hangout
Location-based Global Social Dating App (NA/EU Target)
BITFRONT (LINE)
Global crypto exchange matching engine & order system
MARBLEX PLAYONE
NFT Offering (INO) Platform for Netmarble MBX Ecosystem
PLAYONE GAMES
Blockchain Game Portal & NFT Launchpad Service
Launchpad Admin
Unified Admin Dashboard for Blockchain Game/NFT Launching (Flutter Web)
Crypto Arbitrage Bot
Risk-free Automated Arbitrage Trading System (Jarvis)
Hangame Shin Matgo S2
No.1 Mobile Board Game in Korea (NHN)
Golden Chip Poker
Facebook-based Social Casino Game (Neowiz)
Dragonica
Global PC MMORPG (C++ Game Engine)
Move Up
Rhythm Action Online Game (SM Ludus)