Staff - Signal Integrity Test Engineer

Staff - Signal Integrity Test Engineer Staff Engineer, Design Engineering Req ID: 137071 Region: Americas Country: USA State/Province: Texas City: Richardson Summary The Signal Integrity Test Engineer plays a key role in high-speed digital PCB development with a strong focus on signal integrity validation and testing. This includes planning and executing lab measurements, analyzing eye diagrams, loss, impedance, jitter, and troubleshooting SI issues on completed designs. The role drives correlation between simulation and lab results, supports compliance testing, and provides critical input during design reviews to ensure robust signal performance. Strong communication skills are required to work effectively with global teams. The engineer designs and develops electrical systems and circuits, translating concepts into schematics and specifications, while ensuring designs meet signal integrity requirements through simulation and lab validation. They own system bring-up, testing, qualification, and continuous optimization based on measurement data. This role works closely with cross-functional teams—including design, manufacturing, and customers—to deliver high-quality products, and continuously improves designs using feedback from testing, manufacturing, reliability, and system validation results. Detailed Description Key Responsibilities: Lead signal integrity validation and characterization of high-speed systems, including hands‑on lab testing of digital interfaces and full channel measurements. Define and execute measurement strategies using oscilloscopes, VNAs, TDRs, and BERTs to evaluate eye diagrams, loss, impedance, jitter, and bit error rate. Drive correlation between simulation and lab measurements, identifying gaps and improving model accuracy to ensure first‑pass design success. Oversee physical layer compliance testing (e.g., PCIe, Ethernet, DDR) and ensure designs meet industry standards and margin requirements. Troubleshoot complex signal integrity issues using measurement data, root cause analysis, and systematic debug methodologies. Provide technical leadership on SI validation best practices, guiding teams on measurement techniques, test setups, and data interpretation. Review system architecture, schematics, and layouts with a focus on testability and signal integrity performance. Partner with design, manufacturing, and suppliers to develop test plans, fixtures, and validation strategies that enable accurate and repeatable measurements. Contribute to project execution by aligning validation plans with schedules, resources, and customer requirements. Document and communicate test results, analysis, and recommendations to stakeholders, supporting design decisions and continuous improvement. Stay current with emerging SI validation techniques, tools, and industry standards to enhance lab capabilities and measurement accuracy. Physical Demands Duties of this position are performed in a normal office environment. Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data. Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required. Occasional travel may be required. Typical Experience Doctorate in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 6+ years technical engineering experience OR Master's Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 8+ years technical engineering experience OR Bachelor's Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 12+ years technical engineering experience OR equivalent experience. Typical Education Bachelor degree in electrical engineering or similar. Notes This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time. EEO / Equal Opportunity Celestica is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. This policy applies to hiring, promotion, discharge, pay, fringe benefits, job training, classification, referral and other aspects of employment and also states that retaliation against a person who files a charge of discrimination, participates in a discrimination proceeding, or otherwise opposes an unlawful employment practice will not be tolerated. All information will be kept confidential according to EEO guidelines. Celestica is an E‑Verify employer. #J-18808-Ljbffr Celestica Inc.