Apple

Apple

Posted via Apple Careers

Graphics (GPU) Performance Modeling Engineer

Always Hiring

Posted Aug 12, 2026

Role at a glance

Salary
$129.3K – $194.7K/yr
Location
Austin, Texas, United States Orlando, Florida, United States
Work arrangement
On-site
Employment
Full-time
Education
Minimum of BS

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Role Summary

AI-generated

The Performance Modeling Engineer will join Apple's GPU Performance Modeling Team to define and optimize GPU micro-architecture and support exploration of next-generation GPU architectures. The role focuses on performance analysis, simulator and modeling platform development, and collaboration with GPU, SoC, micro-architecture, RTL, and cross-functional architecture teams.

What You'll Do

  • Develop C++ performance models for proposed architectural solutions and features.
  • Gather, analyze, and validate measured and simulated results to compare architectural design alternatives.
  • Analyze workloads to identify bottlenecks and opportunities for improvement.
  • Architect new simulator features and develop APIs, tools, and standard examples for the modeling platform.
  • Write architectural specification documents in collaboration with engineers across disciplines.
  • Collaborate with multifunctional teams to develop architectural solutions and improve GPU simulators and performance models.

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

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Qualifications

Minimum of BS; experience with programming in C & C++

Required

  • Bachelor's degree
  • Programming in C and C++

Preferred

  • Familiarity with performance and/or power simulation environments
  • Object-oriented programming with C and C++
  • Data structures and algorithms
  • Software design patterns
  • Scripting languages such as Perl, Python, or Ruby
  • Computer architecture and micro-architecture
  • Strong communication, influence and negotiation skills
  • C++ modeling of computer architectures

Original job description

Content provided by the employer

Summary

Do you have an uncommon desire to seek out and solve exceedingly difficult challenges rather than the easy ones? Do you believe that truly valuable, and meaningful accomplishments are the result of pushing the limits of perseverance? Do you believe that a world-class team with relentless drive can surpass even their own high expectations?

We do! But we also realize this job isn’t for everyone. What we do is not easy but you do not take the easy path. We are seeking a highly motivated, innovative, and confident individuals to join the GPU Performance Modeling Team; we are a group that is driving advanced exploration for next generation GPU architectures and micro-architectures. In this highly visible role, you will be at the center of a chip design effort working with all disciplines, with a critical impact on getting high performant products to millions of customers quickly.

Description

As a Performance Modeling Engineer you will be part of a team that is defining and optimizing Apple's GPU micro-architecture. With others you will seek out areas for improvement while collecting data and measurements that either confirm the idea or rule it out. You will collaborate with experienced designers in micro-architecture and RTL to assess the feasibility of ideas, refine ideas, and seed new ones.
The role requires the analysis of interesting workloads across existing and new product categories to identify bottlenecks and opportunities for improvement. You’ll be architecting new simulator features and brainstorming novel ideas to boost simulation performance. You’ll collaborate with world-class GPU and SoC Architects to steer and improve the implementation of GPU simulators and performance models used for research, performance analysis, and microarchitecture tuning. We also cross-collaborate as a larger architecture and performance team to maintain and improve the simulation environment and look for ways to boost the productivity of the entire team .


In this position you will be expected to:
- C++ performance modeling of proposed architectural solutions and features.
- Gathering, analyzing, and validating measured and simulated results to compare architectural design alternatives.
- Carefully analyze and present results to enable data specific architecture/design.
- Writing architectural specification documents in collaboration with engineers across different disciplines.
- Work with the multi-functional teams to develop architectural solutions.
- Improve Apple’s modeling platform by developing APIs, tools, and optimal standard examples that can be used throughout the company.

Minimum Qualifications

Minimum of BS
Experience with programming in C & C++

Preferred Qualifications

Familiarity with a range of performance and/or power simulation environments
Strong coding skills including object-oriented programming with C & C++
Strong understanding of common data structures and algorithms
Knowledgeable in software design patterns
Knowledge of scripting languages such as Perl, Python, or Ruby
You should have strong knowledge of computer architecture & micro-architecture
Be comfortable in an environment of uncertainty and able to work through ambiguities
You will need strong communication, influence and negotiation skills to enable right data driven decisions are taken
Experience in C++ programming.
Experience with C++ modeling of Computer Architectures.
Experience with scripting languages Python, Ruby, or Perl.

Pay & Benefits — Santa Clara, California, United States

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $129,300 and $194,700, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits

Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

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.