Tech Lead · Fullstack · Back-end
Building online stores, booking websites and custom software that hold up at real scale.
I am Luan Huynh. 12 years of Java, Spring, Next.js/React, MySQL and AWS, Cloudflare and VPS infrastructure. Available for websites, custom software and digital-transformation consulting for small and mid-size businesses.

Services
Services I offer
From a company website to a booking platform, plus custom software for your own problem. Clear scope, documented handover.
See all servicesBusiness website
Fast, bilingual, easy to edit.
Online store / e-commerce website
Building B2C and B2B stores, large catalogs, ERP integration.
Booking website
Websites for rooms, tours and services: dated inventory, expiring holds, no double-booking.
Back-end, API, DevOps
API design, AWS, Cloudflare, VPS, Docker, CI/CD.
Digital-transformation consulting & custom software
Got an idea? I will help you turn it into a working website or software.
Demo
Sample websites by industry
Each sample represents an industry I have worked in with real clients. Click to explore.
Booking website
Search, pick, 15-minute hold, booking confirmation.
2 left · 15-minute hold890.000 ₫
6 seats left450.000 ₫
Online store website
Product listing, detail page, cart.
Open demo →Business website
About, news, contact; loads fast.
Open demo →API docs + architecture
Swagger-style layout, architecture diagram, request and response samples.
Stack
Tools I use daily
Back-end
JavaSpring BootSAP HybrisMyBatisMySQLOracleSQL ServerElasticsearchFlywayPythonFrontend
Next.jsReactTypeScriptJavaScriptjQueryExtJSHTML/CSSPlatforms & CMS
DrupalWordPressPrestaShopSalesforceGuidewireFacebook/Google APIInfrastructure
AWS EC2 · ALB · Route 53 · S3 · IAMCloudflare Zero Trust · TunnelVPS Linux · Nginx · TomcatDockerCI/CDGit · JiraLocal AI
OllamaQwenFFmpegTelegram BotHave a system to build or rescue?
Describe the problem briefly. I will reply by email.