At a startup company, I build the surviellance system from scratch using plain Php and Node.js for backend and jQuery for frontend. This system includes user, company, permission, device, dashboard, playback, nodes (Nested Set Model) modules and mailing notification. Create IoT API between surveillance devices (camera, proxy device, NVR) and server Use Node.js to receive information from devices via MQTT protocol. Receive motion detection data when camera found a motion. Receive a facial detection data when proxy recognized a face (through 'Amazon Rekognition' service) Receive heat map data periodically after proxy collected data from camera Web API between client(browser) and server Design API service structure Publish MQTT to topic devices to change devices' configuration Web Interface Using jQuery to manipulate DOM and handle interaction between users and system. Database Schema Design relational database schema which satisfied database normalization to reduce data redundancy and improve data integrity.

Used Cakephp & jQuery to develop our ERP system for different companies. The ERP system include customer side (quotation, sales, deliver), supplier side (quotation, purchase , deliver) and stock management modules.

We build customized shopping cart and content management systems for different customers.