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Signal Integrity Engineer – Memory Interface

Apple· Hardware
Apply on company site
Hybrid (San Francisco Bay Area), Hybrid (Austin), Hybrid (San Diego)$184.7k - $324.8kFull-timePosted 6mo ago

About the role

Engineer focused on memory interface signal integrity for Apple SoCs, covering from package to board, with emphasis on DDR/LPDDR interfaces and end-to-end SI/PI modeling, simulation, validation, and collaboration across silicon, package, and system teams.

Responsibilities

  • 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.

Qualifications

  • BS + 10 years of industry experience.
  • 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.

Skills

Required:Memory interface SI/PISI/PI modeling and simulationLab correlation / measurementPython programming3D/2D EM simulation

Benefits

  • Comprehensive medical and dental coverage
  • Retirement benefits
  • Discounted products and free services
  • Educational expense reimbursement including tuition
  • Discretionary bonuses or commission payments and relocation (eligibility may apply)
Last updated Sep 25, 2026. Interested? Apply on the company site.

About Apple

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support.

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