LU
LumentumEngineer Staff, Firmware
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Before you apply
LocationChina - Shenzhen (Futian)
Work modeon-site
Typefull-time
SeniorityLead
Experience8+ yrs
DepartmentEngineering
Company size10,000+ people
PostedSep 11, 2026 · 1mo ago
Verified live15h ago
At a glanceSummarised by Seekless from the posting.
BS, MS, or PhD in Electrical Engineering, photoelectric, Computer Engineering, Telecommunication, or a related field
Minimum 8 years of experience in the related industry
Independent Firmware development experience for mass production product.
Good communications skills, written and verbal, in English and Mandarin
Well organized
Good willing to take responsibility.
Proficiency in microcontrollers
Experience writing low-level drivers (GPIO, UART, SPI, I2C, ADC, PWM, etc.).
Experience with FreeRTOS, Zephyr, or other real-time operating systems.
Use of tools like JTAG, SWD, and in-circuit debuggers
Familiar with industry standards and design regulatory, such as IEEE 802.3, OIF, MSA standard, CMIS specification, etc.
Understanding of firmware flashing, updating methods, and version control.
Good experience in analog and digital circuit design
Knowledge of electronic components (MCUs, ASIC, sensors, laser driver, TEC controller, regulators, etc.).
Experience using oscilloscopes, logic analyzers, multimeters, and spectrum analyzers.
Knowledge and experience on semiconductor laser for optic communication application
Strong skill on Failure analysis, root cause study and improvement solution
Skills
STM32
ESP32
GPIO
UART
SPI
I2C
ADC
PWM
FreeRTOS
Zephyr
JTAG
SWD
in-circuit debuggers
IEEE 802.3
OIF
CMIS
version control
analog circuit design
digital circuit design
oscilloscopes
logic analyzers
multimeters
spectrum analyzers
semiconductor laser
About the company
It’s fun to work in a company where people truly BELIEVE in what they’re doing!
We’re committed to bringing passion and customer focus to the business.
If you like wild growth and working with happy, enthusiastic over-achievers, you’ll enjoy your career with us!
About the role
Lumentum is seeking a talented Engineer Staff, Firmware to join our Shenzhen R&D team. The successful candidate will play a key role in firmware design for optical communication products.
Key Responsibilities:
•
Firmware design for optical communication products
•
Design and implement firmware for microcontrollers (e.g., MCU, such as STM32, ESP32, etc) and other embedded platforms
•
Develop low-level drivers (GPIO, UART, SPI, I2C, ADC, etc.) and integrate peripherals
•
Ensure reliable and efficient communication between hardware modules and software systems
•
Develop GUI for firmware debugging and Lab engineering investigation.
•
Collaborate with software engineers to integrate hardware and firmware with application layers
•
Create and maintain design documents (memory map, register file, etc) and test reports.
•
FW related troubleshooting or failure analysis
Required Qualifications:
•
BS, MS, or PhD in Electrical Engineering, photoelectric, Computer Engineering, Telecommunication, or a related field.
•
Minimum 8 years of experience in the related industry
•
Independent Firmware development experience for mass production product.
•
Good communications skills, written and verbal, in English and Mandarin
•
Well organized
•
Good willing to take reasonability.
•
Proficiency in microcontrollers
•
Experience writing low-level drivers (GPIO, UART, SPI, I2C, ADC, PWM, etc.).
•
Experience with FreeRTOS, Zephyr, or other real-time operating systems.
•
Use of tools like JTAG, SWD, and in-circuit debuggers
•
Familiar with industry standards and design regulatory, such as IEEE 802.3, OIF, MSA standard, CMIS specification, etc.
•
Understanding of firmware flashing, updating methods, and version control.
•
Good experience in analog and digital circuit design
•
Knowledge of electronic components (MCUs, ASIC, sensors, laser driver, TEC controller, regulators, etc.).
•
Experience using oscilloscopes, logic analyzers, multimeters, and spectrum analyzers.
•
Knowledge and experience on semiconductor laser for optic communication application
•
Strong skill on Failure analysis, root cause study and improvement solution