Apple · 1 day ago
Signal Integrity Engineer – Memory Interface
San Francisco, CA
Full-time
Onsite
Senior Level, Lead/Staff
$172K/yr - $302K/yr
8+ years expApple is a leading technology company known for its innovative products. The Signal Integrity Engineer will be responsible for memory interface signal integrity for Apple SoCs, working on design, validation, and optimization of memory systems.
AppsArtificial Intelligence (AI)BroadcastingDigital EntertainmentFoundational AIMedia and EntertainmentMobile DevicesOperating SystemsTVWearables
Responsibilities
Conduct end-to-end signal integrity and power integrity simulation studies of memory system including modeling of channels and power delivery networks of die/interposer/PKG/PCB/PMU to meet tight timing and voltage spec
Provide feedbacks and guidelines to silicon floorplan, package, system design, and other cross-functional teams
Provide optimal IO settings and design guideline to cross-functional teams
Perform feasibility study for next generation of signaling scheme
Perform correlation between simulation and silicon measurement
Qualification
Required
Prior design and modeling experience with DDR or LPDDR interfaces are a must-have
You will work on electrical and physical design of memory systems
Work on electrical extraction and validation of package and MLB
Work with circuit and controller team to optimize memory system design
Work on SI and PI modeling, simulation, and characterization memory interface
Develop and execute test plans to validate signal and power integrity
Work with product engineering and system engineering to debug and to improve product yield
Conduct end-to-end signal integrity and power integrity simulation studies of memory system including modeling of channels and power delivery networks of die/interposer/PKG/PCB/PMU to meet tight timing and voltage spec
Provide feedbacks and guidelines to silicon floorplan, package, system design, and other cross-functional teams
Provide optimal IO settings and design guideline to cross-functional teams
Perform feasibility study for next generation of signaling scheme
Perform correlation between simulation and silicon measurement
Preferred
MSEE + 8 years of industry experience and or Ph.D. preferred
We are looking for someone who is familiar with signal and power integrity issues of memory interfaces
Prior experience working with actual product package/board design and analysis, PI/SI methodology development, and lab correlation/validation of the simulation results
Excellent academic background
Familiar with lab equipment, such as: VNA, TDR, real-time scope, spectrum analyzer, etc
Strong fundamentals in 3D/2D EM simulation tools and transmission line theory
Proficient in Python with strong foundational coding skills and expertise in leveraging generative AI coding assistants to enhance productivity
Benefits
Comprehensive medical and dental coverage
Retirement benefits
A range of discounted products and free services
Reimbursement for certain educational expenses — including tuition
Discretionary bonuses or commission payments
Relocation
Company
Apple
Apple is a technology company that designs, manufactures, and markets consumer electronics, personal computers, and software.
10001+ employees
H1B Sponsorship
Apple has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (6998)
2024 (3766)
2023 (3939)
2022 (4822)
2021 (4060)
2020 (3656)
Funding
Current Stage
Public CompanyTotal Funding
$5.67BKey Investors
Berkshire HathawayMicrosoftSequoia Capital
2025-05-05Post Ipo Debt· $4.5B
2025-01-16Post Ipo Debt· $0.31M
2021-04-30Post Ipo Equity
Leadership Team
Tim Cook
CEO
Craig Federighi
SVP, Software Engineering
Recent News
Venrock
2025-12-01
2025-09-25
Mac Daily News
2025-09-25
Company data provided by crunchbase