Apple

Apple

Posted via Apple Careers

CPU Design Timing Engineer

Always Hiring

Posted Aug 4, 2026

Role at a glance

Salary
Not Disclosed
Location
Austin, Texas, United States
Work arrangement
On-site
Employment
Full-time
Experience
10+ years of relevant industry experience
Education
Minimum BS

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Role Summary

AI-generated

The CPU Design Timing Engineer is responsible for timing closure for a CPU project. The role works with CAD, CPU micro-architecture, implementation, and RTL teams on timing flows, analysis, and timing changes.

What You'll Do

  • Work with the CAD team to develop the timing flow used on the project.
  • Write scripts to improve analysis flows and engineer efficiency.
  • Work extensively with CPU micro-architects to drive timing closure for the CPU.
  • Work extensively with implementation engineers to drive timing closure for the CPU.
  • Perform timing analysis and timing closure.
  • Construct and modify timing flows.

Generated from the employer's posting. Verify important details before applying.

View full posting

Qualifications

Minimum BS and 10+ years of relevant industry experience; experience with timing for 1 ghz+ designs, multiple clock and power domains, PrimeTime or Tempus, cross talk, noise, OCV, uncertainty, derate methodology, and scripting in TCL, Perl, or Python.

Required

  • Minimum BS
  • 10+ years of relevant industry experience
  • Timing experience for 1 ghz+ designs
  • Experience handling multiple clock and power domains
  • Experience with PrimeTime or Tempus
  • Experience with cross talk, noise, OCV, uncertainty, and derate methodology
  • Script writing and debugging in TCL, Perl, or Python

Preferred

  • Implementation experience on high performance CPU designs
  • Working knowledge of CPU microarchitecture
  • Understanding of low power microarchitecture and implementation techniques for CPUs
  • Understanding of physical design tools and methodology
  • Knowledge of static timing tools and flows
  • Knowledge of device physics especially aspects which impact timing

Original job description

Content provided by the employer

Summary

Imagine what you could do here! At Apple, new ideas have a way of becoming extraordinary products, services and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish. Dynamic, hardworking people and inspiring, innovative technologies are the norm here. The people who work here have reinvented entire industries with all Apple Hardware products. The same real passion for innovation that goes into our products also applies to our practices strengthening our commitment to leave the world better than we found it. Join us to help deliver the next groundbreaking Apple product!

In this role, you will be responsible for all aspects of timing including working with the implementation and RTL teams on timing changes, helping with constructing and modify timing flows, timing analysis, and timing closure.

Description

As a CPU Design Timing Engineer, you will be responsible for the timing closure of the project. Responsibilities include but are not limited to:

• Working with the CAD team to develop the timing flow that will be used on the project including scripting to improve analysis flows and engineer efficiency
• Working extensively with CPU micro-architects and implementation engineers to drive timing closure for the CPU

Minimum Qualifications

Minimum BS and 10+ years of relevant industry experience
Experience working on timing for 1 ghz+ designs, including how to handle multiple clock and power domains
Experience with one of the following static timing tools: Primetime or Tempus
Experience with cross talk, noise, OCV, uncertainty, and derate methodology
Experience with script writing and debugging in one or more of the following languages: TCL, Perl, Python

Preferred Qualifications

Implementation experience on high performance CPU designs
Working knowledge of CPU microarchitecture including common critical loops for timing and understanding of low power microarchitecture and implementation techniques for CPUs
Good understanding of physical design tools and methodology including but not limited to physically aware synthesis and place & route tools and flows, extraction, and other analysis flows, and physical design verification (LEC, DVS, etc.)
Knowledge of static timing tools and flows including how to handle multiple clock and power domains
Knowledge of device physics especially aspects which impact timing: cross talk, noise, OCV, uncertainty and derate methodology

Application Deadline

Apple accepts applications to this posting on an ongoing basis.

Apple

About the company

Apple

Large Enterprise

Apple Inc. is a global technology company known for its innovative products and services, including the iPhone, iPad, Mac computers, and Apple Watch. Founded in 1976, Apple has continuously pushed the boundaries of design and functionality, earning a reputation for high-quality consumer electronics and software solutions like iOS and macOS. With a strong commitment to user experience and privacy, Apple also leads in digital services, offering platforms such as the App Store, Apple Music, and iCloud. The company's focus on sustainability and corporate responsibility further enhances its standing as a leader in the technology sector.