Jun Yu Tan

• Worked as a Backend Automation Engineer for IoT alert and triggering system using Node.js • Integrated backend system with hardware sensors using Modbus protocol to read real-time sensor data via register polling. • Set up and managed secure SSH tunnels for remote deployment and monitoring of applications on industrial PCs across isolated network environments. • Configured AWS EC2 instances to create isolated testing environments • Implemented socket-based communication between frontend and backend to support real-time alert pop-ups on the dashboard. • Integrated InfluxDB with Grafana, leveraging Flux query language to extract, transform, and visualize time-series data for system monitoring and analytics dashboards.

• Utilized Java and Spring Boot framework to develop APIs • Designed and configured APIs to handle complex SQL queries, including joins, aggregations, and condition-based logic to support dynamic backend functionalities. • Developed three ERP-based Android mobile apps (Delivery Driver App, Stock Transfer App, Delivery Order App) using Kotlin and Jetpack Compose • Implemented Model-View-ViewModel (MVVM) architecture to separate business logic from UI • Engaged directly with clients to clarify requirements and translate business needs into actionable technical tasks.