Signal Integrity Engineer Jobs in Illinois (NOW HIRING)

• Perform pre-layout and post-layout signal integrity simulations for high-speed interfaces including PCIe, CXL, Ethernet, SerDes, and DDR5/DDR6 technologies under the guidance of senior SI/PI engineers.
• Analyze channel performance, insertion loss, return loss, crosstalk, and timing margins to support robust platform design.
• Evaluate design tradeoffs and provide recommendations to improve signal quality and overall system performance.

• Develop and execute channel models using industry-standard tools such as HFSS, ADS, HSPICE, Sigrity, or comparable simulation environments.
• Support stackup development, impedance control requirements, and routing rule definition for high-speed PCB designs.
• Assist with connector, cable, package, and channel characterization activities.

• Support signal integrity validation using high-speed oscilloscopes, Vector Network Analyzers (VNA), Time Domain Reflectometers (TDR), and Bit Error Rate Testers (BERT).
• Correlate simulation results with laboratory measurements and identify opportunities for model refinement.
• Assist with compliance testing and validation for industry-standard interfaces.

• Collaborate with hardware design and PCB layout engineers to ensure adherence to SI best practices and design guidelines.
• Provide technical support for routing strategies, connector selection, cable design, and high-speed channel optimization.
• Participate in EVT, DVT, and PVT bring-up activities and support debug efforts for signal integrity-related issues.

• Maintain simulation reports, measurement results, compliance documentation, and engineering recommendations.
• Document methodologies, findings, and corrective actions to support design reviews and product releases.
• Contribute to the development of SI design guidelines and best practices.

• Bachelor's or Master's degree in Electrical Engineering or a related technical discipline.
• 2-5 years of experience in Signal Integrity, High-Speed Digital Design, Hardware Engineering, or related disciplines.
• Internship, co-op, academic research, or project experience involving channel simulation, high-speed interfaces, or laboratory measurements is highly desirable.
• Working knowledge of transmission line theory, electromagnetic fundamentals, PCB stackups, and high-speed channel design.
• Familiarity with SI simulation and modeling tools such as HFSS, ADS, HSPICE, Sigrity, CST, or equivalent.
• Experience working with laboratory equipment including oscilloscopes, VNAs, TDRs, and related measurement tools.
• Understanding of impedance control, crosstalk, jitter, eye diagram analysis, and channel loss mechanisms.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills with the ability to present technical findings clearly.
• Demonstrated attention to detail and ability to work effectively in cross-functional engineering environments.

• Experience supporting AI, GPU, server, storage, networking, or data center hardware platforms.
• Familiarity with PCIe Gen4/5/6, CXL, DDR5/DDR6, Ethernet, SerDes, and related industry standards.
• Knowledge of Intel and/or AMD server architectures.
• Experience supporting EVT, DVT, and PVT development cycles.
• Understanding of package, board, connector, and cable interactions in high-speed systems.
• Exposure to compliance testing methodologies and industry certification requirements.
• Experience collaborating with SI, PI, hardware design, layout, mechanical, and manufacturing engineering teams.
• Familiarity with power integrity concepts and their interaction with signal integrity performance.

• Competitive salary commensurate with experience and qualifications.
• Comprehensive medical, dental, and vision insurance.
• 401(k) with company match.
• Flexible Spending Account (FSA).
• Health Savings Account (HSA).
• Paid holidays, vacation, and sick time.
• Tuition reimbursement programs.
• Professional development and training opportunities.
• Employee discount programs through Perks at Work.
• LEAP career development program.
• MyFlexPay benefit program.

This position operates in a hybrid office and laboratory environment and requires hands-on interaction with development hardware, validation platforms, and advanced test equipment. The role includes extensive collaboration with hardware design, layout, power integrity, and validation teams. Occasional travel may be required to manufacturing facilities, suppliers, customer locations, or engineering laboratories. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the role.