Hi, I'm Juan Fernandez
Full Stack Developer specialized in building scalable and efficient applications with modern technologies.
Contributions
Technologies
Tools and technologies I master to create exceptional solutions
Hardware
Projects
VelocitySetups
Web platform specialized in selling optimized PC builds for gaming.
ProLevelCode
Web development and AI courses platform to take your code to the next level.
IvaniaBeauty
Online store for premium Colombian shapewear with shipping throughout Chile.
L2J · Online Game Servers
I build online game servers like Lineage II: persistent worlds, login, gameplay, databases, launchers, marketplaces, and production infrastructure.
gcp-oauth-automator
Automate Google OAuth 2.0 client creation in GCP using Playwright — one command, zero manual clicks.
Garru
Web experience and management system for a specialty coffee shop inspired by the Andean bear.
Doblez Empanadas
Brand experience, interactive storefront, and operations dashboard for a Buenos Aires empanada shop built around takeout and delivery.
SOS Venezuela 2026
Real-time collaborative map for Venezuela's M7.5 earthquake (Jun 24, 2026) — the first web app deployed after the quake. Damage and collapse reports, missing-person search, shelters and first aid.
PokeScan
Pokémon TCG price radar: spikes, hidden gems and Chile↔US arbitrage across 14,000+ cards updated daily. Private access.
APR Transports
Website and dispatch panel for a US freight carrier: quotes with validated addresses, routes traced with real mileage and a load board for drivers.
Caiena Nails
Nail art studio in Leander, TX: a design catalogue with booking, gift cards, a loyalty program and WhatsApp support.
Knead & Feed Sourdough
Pre-order site for a sourdough bakery: menu, collection windows, pay at pickup and a private panel for the bakery.