Senior Firmware Engineer - Optical Solutions

Molex is an industry leader in transforming optical network infrastructure with an unwavering commitment to speed, reliability, and performance. We proudly engineer high-performance systems for critical, fast-growing industries including data centers, telecom, medical, and industrial automation. Our team develops an advanced portfolio of optical solutions, ranging from cutting-edge optical connectivity products-such as expanded beam connectors, fiber management, adapters, and hybrid copper/fiber solutions for medical systems-to end-to-end optoelectronic solutions featuring cages, connectors, optical transceivers, and cable assemblies.

Supporting extreme data rates from 100 Mbps to 1.6 Tbps across long-haul distances up to 80km+, we deliver complete wavelength management and turnkey OEM solutions. Come join Molex and help build the future of global connectivity.

In Fremont, we serve global clients in telecom and datacom industries in providing next generation optical modules to support 5G Networks. We are looking for a Senior Firmware Engineer to join our team. This team will be responsible for software development for optical network modules.

This person will work with multi-discipline teams including:
Sales and Marketing, Product Line Managers, PCB designers, electrical, mechanical and optical engineering teams. This will include direct interface with customers as well.

• 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.

• Bachelor's degree in Computer science, Electrical Engineering or related technical discipline
• At least 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 logical thinking and systematic problem-solving ability
• Disciplined documentation habits - able to produce clear design specs, test reports, and issue logs
• Expertise troubleshooting and resolving complex firmware issues independently
• Familiarity with common embedded communication protocols such as I2C, SPI, UART
• Hands-on debugging experience with tools such as JTAG/SWD debuggers, oscilloscopes, or logic analyzers

• Advanced degree in Electrical Engineering, Computer Science or related technical degree
• Knowledge and experience in software engineering, including computer architecture, operating system, distributed systems, data structure, algorithm and object-oriented design methodology.
• Knowledge and experience in digital hardware programming and bring-up in embedded OS and/or bare-metal mode.
• Proficient in programming in one or more of the following languages:
  Python and Bash script and familiar with ARM architecture
• Familiarity with Xilinx Zynq platform, including PS/PL co-design and Xilinx SDK / Vitis toolchain
• Familiarity with FPGA co-design or hardware-software co-development
• Experience in reliability design, including fault detection, error…