9 days ago
Shenzhen, ChinaStaff+
Responsibilities
- Design firmware for optical communication products.
- Implement firmware for microcontrollers such as STM32 and ESP32 and other embedded platforms.
- Develop low-level GPIO, UART, SPI, I2C, ADC, and related drivers and integrate peripherals.
- Ensure reliable communication between hardware modules and software systems.
- Develop GUIs for firmware debugging and laboratory engineering investigation.
- Collaborate with software engineers to integrate hardware and firmware with application layers.
- Create and maintain memory maps, register files, design documents, and test reports.
- Troubleshoot firmware issues and perform failure analysis, root-cause studies, and improvement work.
Requirements
- Proficiency with microcontrollers and independent firmware development for mass-production products.
- Experience writing low-level drivers, including GPIO, UART, SPI, I2C, ADC, and PWM.
- Experience with FreeRTOS, Zephyr, or other real-time operating systems.
- Experience using JTAG, SWD, and in-circuit debuggers.
- Familiarity with IEEE 802.3, OIF, MSA, and CMIS standards or specifications.
- Understanding of firmware flashing, update methods, and version control.
- Experience with analog and digital circuit design and electronic components such as MCUs, ASICs, sensors, laser drivers, TEC controllers, and regulators.
- Experience using oscilloscopes, logic analyzers, multimeters, and spectrum analyzers.
- Knowledge of semiconductor lasers for optical communication applications.
- Bachelor's, master's, or PhD degree in Electrical Engineering, photoelectric engineering, Computer Engineering, Telecommunication, or a related field.
- Minimum eight years of experience in the related industry.
- Strong written and verbal communication skills in English and Mandarin.
Categories
About Lumentum
Lumentum designs and manufactures optical communications and photonic products—lasers, modules, and subsystems—for data center, telecom, industrial, and sensing applications. It sells to network equipment makers, cloud providers, and industrial OEMs, supporting AI infrastructure and advanced manufacturing. Founded in 2015 and headquartered in San Jose, California, Lumentum is publicly traded on NASDAQ (LITE) and operates R&D and manufacturing sites worldwide.