Senior Firmware Engineer

Molex is seeking a highly skilled Senior Firmware Engineer to join our Optical Business Unit. In this role, you will be part of a fast‑paced firmware engineering team developing next generation optical transceivers for datacenter and telecom markets. The ideal candidate will have an excellent understanding of firmware design, development and verification methodologies for optical communication products. You will collaborate with Product Management, Hardware, Operations, and Field Application Engineering Teams to drive the development of transceiver products.

This role requires both domestic and international travel.

• Design, develop and verify CMIS Compliant Firmware for Optical Transceivers
• Design, implement and calibrate control loops for electro‑optical components
• Port, integrate and test DSP chip driver software on target platforms
• Ensure Product Performance, Reliability and Quality through critical code reviews, test design and analysis
• Support NPI and Application Engineering teams in bringing products to the market
• Troubleshoot and resolve operational and customer issues by understanding the use cases, reproducing the issues in lab and implementing solutions
• Lead distributed design and development teams across multiple time zones

• Bachelor’s degree in computer engineering and related fields
• 5+ years of experience in firmware design and development for communication products
• Proficiency in C/C++ and Python programming
• Experience in bare‑metal and RTOS based firmware development and optimization
• Strong understanding of bus protocols like I2C, I3C, SPI, PCIe, MDIO etc.
• Hands‑on experience with lab equipment like oscilloscope, signal generators, OSA, VOA etc.
• Knowledge about PID control loops involving DAC, ADC, TEC and PIC
• Experience with GIT version control system, CI/CD pipelines and optical technologies is a plus

Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E‑Verify. Please  for additional information. (For Illinois E‑Verify information  , aquí , or tu ).