Hardware Systems Signal Integrity Engineer - iPhone
Apple
Other Engineering
Cupertino, CA, USA
Posted on Mar 17, 2026
The people here at Apple don’t just create products — they create the kind of wonder that’s revolutionized entire industries. It’s the diversity of those people and their ideas that inspires the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts The iPhone System Technologies organization is seeking a Signal Integrity Engineer for the hardware development team. In this highly collaborative role, you will interface with various technology and module teams (such as camera, display, sensors, etc.) to influence their integration at the system level with emphasis on design and debug of high-speed and low-speed links. Our team is collaborative, creative and passionate about what we do and the products we make. We want to hear from you!
We are seeking a candidate with a strong background in Signal Integrity including Lab and Simulation experience. Knowledge of electromagnetics, transmission line theory, extracting channel models and simulating EMI/Crosstalk are expected. Channel elements include rigid PCBs, flexible printed circuit boards, connectors, and other components in a mobile system.
- Participating in schematic reviews to inform selection and placement of various system level channel components including RLC filters, DC-blocking capacitors, board to board connectors, etc.
- Simulating loss, crosstalk, and coupling concerns to guide layout & system design using 3D/2.5D/2D EM modeling tools.
- Leading layout reviews and making data-driven recommendations to achieve robust SI performance on various signals running at low and high speeds.
- Performing design feasibility study, design testing and verification, and system bring up.
- Providing design guideline and supporting to system architecture design, board layout, product bring up, debug, validation, and factory builds.
- Performing time-domain and statistical simulations to qualify signal integrity and optimizing driving strengths and equalization to ensure adequate voltage and timing margins over high volumes.
- Performing lab measurements such as VNA characterization, Eye Diagrams, BERTs and Compliance Testing.
- Working with multi-functional teams to define design requirements for improved EM performance and system coexistence by developing and improving design methodologies to achieve minimal EMI.
- Masters in EE or related field and a minimum of 5 years of industry experience
- Strong EE fundamentals and problems solving skills
- Strong academic background in EM theory and coupling mechanisms.
- Hands-on experience in hardware board-level testing, validation, and with lab equipment (TDR, VNAs, scopes, near field scanning, spectrum analyzers)
- Hands-on experience in EM and circuit simulation tools such as Ansys HFSS/Maxwell/SIWave, CST, ADS/Spice/Spectre, Cadence/Sigrity, scripting languages (Python, Perl)
- Work experience as Signal Integrity Engineer is a must
- Ph.D. in EE with 5 years or equivalent of relevant working experience
- A strong background in mobile system engineering is preferred
- A passion for engineering with demonstrated initiative, creativity, and innovation.
- Excellent communication and presentation skills
Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.