Sr Engineer, Firmware

Your Job

Molex is seeking a Senior Firmware Engineer to join our Optical Solution Business Unit (OSBU). In this role the successful candidate will be part of a world-class engineering team, contributing to the development of the next generation coherent and PAM4 optical transceivers. The successful candidate will be responsible for designing, implementing, and validating embedded firmware that ensures the functionality, performance, and reliability of our high-speed optical transceiver modules. The Senior Firmware Engineer will apply deep expertise in embedded systems, real-time programming, and hardware / software integration while collaborating closely with global, cross-functional teams to develop high-performance firmware solutions.

Our Team

R&D Optoelectronic Solutions

What You Will Do

• Design, develop, and optimize embedded firmware for high-speed optical transceiver modules (e.g., QSFP-DD, OSFP)
• Collaborate with hardware, optics, and systems teams to define and implement firmware requirements
• Perform bring-up and debugging of firmware on new hardware platforms using lab equipment
• Implement and validate digital control interfaces such as I²C, SPI, MDIO, and CMIS-compliant protocols.
• Support validation, manufacturing, and production teams by providing firmware diagnostics and test features
• Contribute to firmware architecture, documentation, code reviews, and continuous integration efforts

Who You Are (Basic Qualifications)

What Will Put You Ahead

LI-SL1