Projects from work

Project owner in charge of developing bootloader, BIOS, Firmware of the new product, including:

• Developed preliminary Power over Ethernet (PoE+) function to increase power supply limit from 30W to 60W
• Brought up hardware board by configuring and synchronizing GPIO, I2C, SPI, SMI buses and multiplexers
• Implemented bootloading process including register configuration, multithread BIOS test, and interruption handling
• Led conference meetings to address SDK and register issues with Broadcom Engineers
• Maintained the switch’s setup and configured webpages in Javascript

Project link: https://www.moxa.com/en/products/industrial-network-infrastructure/ethernet-switches/layer-2-managed-switches/eds-p506e-series

Project owner in developing the protocol in MOXA MDSG4000 series switches, including:

• Designed and Implemented the protocol in an embedded Linux system with 100,000+ lines of C code
• Implemented mutex lock, parent and child processes for critical resources security
• Adjusted system task priorities in order to improve the network recovery time by 3 times faster
• Programmed 1,000 lines of Makefiles to deploy Debian packages with compatibility
• Implemented CRUD operations in JSON format for protocol configurations and verified by Postman

Project link: https://www.moxa.com/en/products/industrial-network-infrastructure/ethernet-switches/layer-2-managed-switches/mds-g4028-series

Was a member of a group of 7 software engineers to develop a new model of network switches. My job included:

• Refactored function interfaces between new Broadcom SDK and the application layer with 100,000+ lines of code
• Implemented multithreading BIOS test and shorten test time by 50%
• Debugged system kernel and device drivers to boot the switch