Staff Firmware Engineer (MCU)

Job Title

Staff Firmware Engineer (MCU)

Role Summary

Develop and maintain embedded firmware for MCU-based power-management and control modules at the Taipei (Wugu) site. Work with hardware, validation, manufacturing and customer teams to bring up boards, validate hardware, and resolve system-level issues.

Experience Level

Senior-level. Minimum of 8 years of relevant firmware or embedded systems experience.

Responsibilities

Primary responsibilities include firmware development, hardware bring-up, and cross-team technical support.

• Design, develop, and maintain embedded firmware for PMI (Power Management Interface) and communication MCU platforms.
• Implement bootloaders, peripheral drivers, middleware, and application code for ARM Cortex-M microcontrollers.
• Perform board bring-up, hardware validation, and firmware debugging on custom embedded systems.
• Develop telemetry, monitoring, control, and fault-management functions for power modules.
• Design and validate firmware update mechanisms, including bootloader and UDS-based solutions.
• Debug hardware-software integration issues using oscilloscopes, logic analyzers, protocol analyzers, and CAN analyzers.
• Create test tools and automation scripts to improve firmware validation efficiency.
• Participate in technical reviews and contribute to system architecture and design discussions.
• Collaborate with hardware, validation, manufacturing, and customer engineering teams to investigate and resolve technical issues.

Requirements

Must-have technical skills and experience.

• 8+ years of relevant experience in consumer PC, industrial PC, laptops, RISC architecture, networking, or related products.
• Proven experience developing firmware for ARM Cortex-M microcontrollers (bootloaders, drivers, middleware, application layer).
• Experience with board bring-up, hardware validation, and embedded-system debugging.
• Knowledge of firmware update mechanisms and UDS-based update flows.
• Experience debugging interfaces and buses (CAN, UART, I2C, SPI) and using lab instruments (oscilloscope, logic analyzer).
• Ability to develop test tools and automation to support firmware validation.
• Strong communication skills, self-motivation, and ability to navigate ambiguity.
• Preferred: experience with OCP ORV3 rack architectures.

Education Requirements

Bachelor's degree in Electrical Engineering or a related field is required; Master's degree preferred.

Additional Information

Employment type: Full time. Benefits include statutory social insurance, group life insurance, and paid time off. Flex is an equal opportunity employer and provides reasonable accommodations for applicants with disabilities (accessibility contact provided for assistance with the application process).

About the Company

Company: Flex

Headquarters: San Jose, California, USA

Flex is a leading diversified manufacturing partner that collaborates with market-leading brands to design, build, and deliver innovative products, making a positive impact on the world. It offers an inclusive and collaborative work environment that promotes growth and career development for its employees.