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STA & Custom Logic Design Engineer

Apple· Hardware
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Sunnyvale, CA$129.3k - $225.3kFull-timePosted 1w ago

About the role

Custom Logic Design and STA engineer role in Apple’s Analog/Mixed Signal Design team. Responsible for timing analysis of custom mixed-signal designs, delivering timing views to integration teams, and developing custom logic design for analog/mixed-signal circuits, collaborating with RTL and cross-functional teams across silicon and module levels.

Responsibilities

  • Custom design timing closure ownership throughout the entire project cycle.
  • Develop and implement STA constraints from specs.
  • Perform block- and chip-level static timing and noise analysis.
  • Design and characterize transistor- and gate-level custom digital circuits in mixed-signal chips.
  • Work with RTL and custom design teams on timing changes and propose correct-by-construction designs and methodologies.
  • Assist design verification and DFT team to debug functional and testing issues.
  • Assist CAD in developing and maintaining methodologies and flows related to timing verification and closure.

Qualifications

  • Minimum requirement of a bachelors degree.
  • Solid understanding of timing analysis concepts such as setup/hold time calculation, POCV on timing paths, timing constraints, transistor-level delay characterization, rise/fall time balancing, etc.
  • Experience of timing analysis and verification in high-speed design such as SerDes and ADC.
  • In-depth knowledge and analytical understanding of mixed-signal design techniques.
  • Strong track record of delivering silicon IPs with design and verification.
  • Proficiency in circuit modeling and simulation, including SPICE models and worst-case corner selection.
  • Master’s Degree with 3+ years of relevant industry experience.
  • Experience with STA tools such as NanoTime, PrimeTime, or Tempus.
  • Experience in analog/mixed-signal circuit design from architecture to fundamental implementation.
  • Experience in SRAM design.
  • Experience in timing / SDC constraints generation and management.
  • Good understanding of tool algorithms for noise glitch, cross-talk delay, and margining with POCV.
  • Proficiency in scripting languages (Python, Tcl or Perl).

Skills

Required:Timing analysisSTA toolsAnalog/mixed-signal designScripting

Benefits

  • Comprehensive medical and dental coverage
  • retirement benefits
  • discounted products and free services
  • reimbursement for certain educational expenses including tuition
  • discretionary bonuses or commission payments possible
  • relocation assistance possible
  • Apple shareholder opportunities through stock programs
Last updated Oct 23, 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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