Signal Integrity Systems Engineer (Entry level to Senior)

Koch • Lisle, IL

23d • Onsite

About The Position

Molex is hiring a Signal Integrity Systems Engineer to design leading-edge solutions for the data services industry and develop active cable platforms using innovative chips. The role works across engineering disciplines and with hyperscale customers and marketing teams to understand application needs and translate them into product solutions. It supports active cable designs for hyperscalers amid growing demand for artificial intelligence and higher data transfer rates, with opportunities to work in Molex laboratory facilities and deliver product-development solutions.

The engineer owns system-level signal-integrity analysis for high-speed channels, develops and evaluates end-to-end 112G and 224G PAM4 channels, and performs modeling, simulation, measurement correlation, and troubleshooting. The role collaborates with ASIC/PHY, hardware, PCB, connector, cable, firmware, and validation teams, and supports customer demonstrations, interoperability testing, plugfests, and technical reviews. It also includes documenting and presenting results, leading root-cause investigations, and recommending design improvements.

Requirements

• Bachelor’s degree in Electrical Engineering, Electrical & Computer Engineering, or a related field.
• Experience in high-speed signal integrity, channel modeling, or system validation.
• Good understanding of transmission-line theory, S-parameters, crosstalk, loss/dispersion, reflections and impedance discontinuities, jitter, BER, and equalization.
• Experience with HFSS, Keysight ADS/PLTS, Cadence Sigrity, or similar tools.

Nice To Haves

• Master’s degree or PhD in Electrical Engineering, Electrical & Computer Engineering, or a related field.
• Hands-on experience with VNA, TDR/TDT, high-speed oscilloscopes, and BERTs.
• Experience working with S-parameter data and channel models.
• Experience with Python, MATLAB, or similar scripting environments for signal-integrity data analysis.
• Experience with 112G/224G PAM4 or similar high-speed SerDes.
• Experience with AEC/ACC/DAC cables and high-speed connectors.
• Experience with IBIS-AMI modeling and simulation.
• Understanding of IEEE, OIF, and/or relevant industry specifications.
• Experience with CMIS, QSFP, OSFP, or other pluggable optical/electrical interfaces.
• Experience correlating simulation models with physical measurements.
• Experience with automated signal-integrity data processing using Python.
• Strong problem-solving and cross-functional communication skills.

Responsibilities

• Own system-level signal-integrity analysis for high-speed channels, including AEC, ACC, DAC, connectors, and PCB interconnects.
• Develop and analyze end-to-end channels for 112G and 224G PAM4 applications.
• Develop and analyze S-parameter models and correlate simulation models against VNA measurements.
• Perform IBIS-AMI and statistical/electrical simulations for high-speed PAM4 channels.
• Perform system-level BER, eye, jitter, and SNR analysis and identify channel performance limitations.
• Correlate simulation, VNA, TDR, and oscilloscope measurements with system-level results.
• Troubleshoot signal-integrity issues across PCB, connector, cable, package, and silicon interfaces.
• Work with ASIC/PHY, hardware, PCB, connector, cable, firmware, and validation teams.
• Support customer demonstrations, interoperability testing, plugfests, and technical reviews.
• Create technical reports and present signal-integrity results to customers and internal engineering teams.
• Lead root-cause investigations and recommend design improvements.
• Analyze transmitter/receiver equalization, including CTLE, FFE, DFE, and retimer/redriver behavior.

Benefits

• Medical, dental, and vision coverage
• Flexible spending and health savings accounts
• Life insurance
• ADD and disability coverage
• Retirement benefits
• Paid vacation/time off
• Educational assistance
• May include infertility assistance, paid parental leave, and adoption assistance

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level