Performance Modelling Engineer - Graduate

Apple · Competitive · East of England

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Apple’s GPU Hardware Tech team are responsible for the outstanding graphics in Apple’s chips which power everything from Apple Watch and Apple TV to iPhone and iPad. We have unique career opportunities for grads interested in applying their hardware and software knowledge towards developing Apple’s cutting-edge GPUs. 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 realise this job isn’t for everyone. What we do isn’t easy but you don’t take the easy path. We are seeking a highly motivated, innovative, and confident individuals to join the GPU Performance Modelling 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 centre of a chip design effort working with all disciplines, with a critical impact on getting high performant products to millions of customers quickly.

Key Qualifications

  • You should have good knowledge and interest in computer architecture and micro-architecture
  • Knowledge of performance simulation environments is a plus
  • 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
  • Strong coding skills including object-oriented programming with C and C++
  • Strong understanding of common data structures and algorithms
  • Knowledgeable in software design patterns
  • Knowledge of scripting languages such as Perl, Python, or Ruby


As a Performance Modelling Engineer you will be part of a team that is defining and optimising 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 modelling of proposed architectural solutions and features.
  • Gathering, analysing, and validating measured and simulated results to compare architectural design alternatives.
  • Carefully analyse and present results to enable data specific architecture/design.
  • Work with the multi-functional teams to develop architectural solutions.
  • Improve Apple’s modelling platform by developing APIs, tools, and optimal standard examples that can be used throughout the company.

Education & Experience

  • Currently enrolled in your final year of your BSc/MSc/BEng/MEng/PhD from a reputable university.

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