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# Hardware Systems Engineer

- **Company:** Apple Inc.
- **Location:** Cupertino, CA, United States
- **Experience:** Experienced
- **Salary:** $184,700 - $277,600
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Automation of Tests, C++ (Programming Language), Software Debugging, Python (Programming Language), Serial Communications, Signal Integrity, System Testing, Systems Integration, Test Execution Engine, Scripting, Data Server Interface, Hardware Testing, Cts+
- **Published:** November 9, 2026
- **Apply:** https://www.juju.com/job/28_25197_5a648bfa8e49a691d733f9d4e60ac095

## About the Role

* Master's degree or foreign equivalent in Electrical Engineering or related field and 3 years of experience in the job offered or related occupation.
 * 3 years of experience with each of the following skills is required:
 * Utilizing high-speed oscilloscopes, Signal generators and VNA/PNA to measure and analyze serial I/O signal integrity and electrical performance characteristics for receiver and transmitter validation
 * Utilizing Thunderbolt and USB4 electrical compliance test specifications (CTS) and compliance test suites to execute and document high-speed serial I/O electrical compliance validation against industry standards
 * Designing and implementing stress testing methodologies for high-speed serial I/O interfaces to identify design operating limits and receiver/transmitter margin post-system integration
 * Executing SerDes receiver electrical validation including adaptive equalization characterization, clock recovery analysis, jitter measurement, and eye-diagram quality assessment
 * Utilizing Python, C++ scripting languages to develop automation scripts for compliance test execution, high-volume eye-scan data collection, and factory-level test flow development
 * Performing failure analysis and hardware debug to troubleshoot compliance test hardware, fixtures, software, and Device Under Test (DUT) issues affecting SerDes receiver/transmitter electrical performance
 * Executing SerDes transmitter electrical validation including pre-emphasis tuning, output swing characterization, jitter analysis, and electrical compliance testing for high-speed data interfaces
 * Characterizing SerDes PHY receiver and transmitter blocks with register-level programming for system validation configuration, including signal integrity parameter optimization and margin analysis
 * Performing high-speed electrical calibration per CTS and verification of high-speed test equipment including 40GHz+ oscilloscopes and BERT systems to ensure measurement accuracy and traceability
 * Utilizing advanced high-speed probing techniques to measure differential impedance, jitter, insertion loss, return loss, and eye-diagram metrics for high-speed serial interfaces