Senior Firmware Engineer, Embedded – Optical Networking

Molex; Fremont (CA); On-site; USD 160,000 - 200,000; Full time

Job summary

Molex is seeking a Senior Firmware Engineer in Fremont to lead embedded software development for optical network modules, covering design, implementation, testing, documentation, and collaboration across hardware, optics, and system teams.

You will interact with customers on RFQ/RFPs, contribute to robustness and performance, and support lifecycle firmware fixes and enhancements in fast-growing telecom/data-center environments.

Qualifications

• Bachelor's degree in Computer Science, Electrical Engineering or related technical discipline.
• 5+ years of experience in C programming for embedded systems.
• Experience in network or telecommunications industry.
• Proficient in bare-metal development on embedded microcontrollers.
• Solid experience with FreeRTOS or equivalent real-time operating systems.
• Strong debugging and problem-solving abilities.
• Experience with embedded communication protocols (I2C, SPI, UART).
• Hands-on debugging with JTAG/SWD, oscilloscopes, or logic analyzers.

Responsibilities

• Develop a robust and high-performance embedded software system and applications in full software development life cycle including designing, implementation and testing.
• Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments and clear code
• Actively involved in technical discussions and presentations and provide input to other members from hardware, optical, and system engineering teams
• Customer interaction including RFQ/RFP responses and pre/post sale customer support
• Engage and collaborate with third party and open source software projects and participate relevant conferences
• Identify, analyze, and resolve firmware issues across the product lifecycle
• Perform other related duties as assigned by management.

Skills

C programming

Embedded systems

Network/telecom experience

Bare-metal development

FreeRTOS

Debugging

Documentation

JTAG/SWD debugging

I2C, SPI, UART

Education

Bachelor's degree in Computer Science or Electrical Engineering

Tools

Git

CI/CD pipelines

Xilinx SDK/Vitis

Job description

Molex is seeking a Senior Firmware Engineer in Fremont to lead embedded software development for optical network modules, covering design, implementation, testing, documentation, and collaboration across hardware, optics, and system teams.

You will interact with customers on RFQ/RFPs, contribute to robustness and performance, and support lifecycle firmware fixes and enhancements in fast-growing telecom/data-center environments.