Signal Integrity Engineer

About This Role

Responsibilities

• Plan and execute moderate to complex signal integrity engineering tasks for high-speed interfaces such as PCIe, UCIe and SerDes.
• Analyze high-speed channel characteristics including S-parameters, insertion loss, return loss, and crosstalk to evaluate and optimize signal quality.
• Perform signal integrity analysis and simulations (eye diagram analysis, jitter analysis, equalization) by adapting existing practices and procedures to evaluate design choices.
• Collaborate with cross-functional teams including hardware designers and PCB layout engineers working on individual and team projects that impact the broader engineering function.
• Assist hardware designers in ensuring proper impedance matching, termination, and routing techniques, advising peers on complex signal integrity matters.
• Perform detailed signal integrity measurements and characterization using lab equipment (oscilloscopes, network analyzers, TDRs, VNA) to validate design performance and troubleshoot ill-defined issues.
• Participate in signal integrity design reviews, presenting findings and suggesting creative variations in approach to ensure adherence to design specifications.
• Document and communicate signal integrity analysis results and design guidelines to stakeholders, adapting communication style depending on the audience.

Qualifications

• B.S. or M.S. degree in Electrical Engineering or relevant field with a minimum of 5 years of related experience.
• Robust professional and specialized knowledge in signal integrity analysis for high-speed interfaces.
• Proficiency in using simulation and analysis tools for signal integrity, including Ansys Siwave, HFSS & Keysight ADS.
• Strong understanding of transmission line theory, impedance matching, and equalization techniques.
• Knowledge of signaling protocols for high-speed interfaces, including SerDes, UCIE, etc.
• Ensure robust signal integrity and timing performance for lower-speed critical interfaces and control buses, such as system clocks, SPI, and I2C.
• Experience with PCB design and layout considerations for high-speed interfaces (layer stack-up, routing, and via design).
• Proficiency in using lab equipment for signal measurement and characterization.
• Ability to write scripts to automate the simulation flow (Python, JavaScript, Ocean scripts, or SKILL).

Preferred Qualifications

Benefits

• Comprehensive Health Care Plan (Medical, Dental & Vision)
• Retirement Savings Matching Program
• Life Insurance (Basic, Voluntary & AD&D)
• Generous Time Off (Vacation, Sick & Public Holidays)
• Paid Family Leave
• Short Term & Long Term Disability
• Training & Development
• Commuter Benefits
• Flexible, hybrid workplace model
• Equity grants (applicable to full-time employees)
• Benefits eligibility may vary depending on your employment status and location. Lightmatter recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, sex, disability, age, veteran status, and other protected status as required by applicable law.
• Export Control
• Candidates should have capacity to comply with the federally mandated requirements of U.S. export control laws.