C/C++ (including C Preprocessor), Embedded C (Arduino-based, STM32-based, PIC18/32), JavaScript, TypeScript, Python, SQL, Bash Scripting

uC : Arduino-based uC, ESP32/8266, STM32-based uC, PIC18/32-based uC, Raspberry Pi
Interfaces & Protocols : UART, I2C, SPI, BLE, WiFi, TCP/IP, UDP, HTTP/HTTPS, MQTT, GSM/LTE, 5G, LoRa, CoAP, Modbus, SSH
RTOS : FreeRTOS
Debugging : JTAG, OpenOCD
Electronic Circuits Design, PCB Design, THT & SMT Soldering, testing & troubleshooting (multimeter, oscilloscope)

Front-End : HTML, CSS, JavaScript, React, Vite
Back-End : Node.js (JavaScript, TypeScript), Express.js, MySQL

Debian-based, Ubuntu-based

Google Cloud Platform, AWS, Digital Ocean, Vercel

- Arcitura Certified IoT Architect
- WorldSkills Malaysia Belia Electronics participant (2023)
- Google Cloud Skill Badges
- Google Developer Skill Badges
- Codered Certificates of Achievements (Cyber Security courses)
- EDIAs 32nd and PERKAYA 25th Gold (Best Innovation) Awardee (2024)