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Cellular Systems Simulation Engineer

2 months ago

Sunnyvale, California, United States Apple Full time
About the Role

We are seeking a highly skilled Cellular Systems Simulation Engineer to join our dynamic team at Apple. As a key member of our silicon design group, you will be responsible for designing and developing innovative cross-layer simulation model infrastructure and tool sets, which will play a crucial role in cellular R&D across teams within Apple.

Key Responsibilities
  • Integrate PHY reference models in PHY only, reduced signaling and full stack pre-silicon simulation and verification environments used by systems engineering, HW, FW and SW development teams.
  • Contribute to simulator configuration management and perform SW releases.
  • Work on simulation framework related topics, such as regression infrastructure development, test coverage analysis, design of automation scripts as well as tool deployment and library integration.
  • Design and implement 4G/5G PHY models for pre-silicon simulation and verification.
  • Perform verification of the PHY models using 3rd Party test tools and test data provided by external network vendors.
  • Contribute to link-level simulator modelling, meaningful metric testing and framework design.
  • 4G/5G PHY/MAC layer abstraction/modeling, and interfacing with higher layers via external simulators.
  • Design test cases for feature verification, drive feature bring-up and issue resolution.
  • Collaborate across teams to define/document project requirements, including model architecture, interfaces, and feature sets and solve integration issues with HW and FW teams.
Requirements
  • Expert knowledge in Python and C/C++ including latest C++ standard evolution and professional experience in C/C++ SW development.
  • Strong background on build systems, configuration and release management.
  • Good understanding of simulator frameworks for link- and system-level simulations as well as FW development.
  • Experience in code optimization techniques and development of efficient code, including memory and runtime profiling and understanding of C/C++ compiler internals.
  • Solid knowledge of wireless communication systems with hands-on experience in 4G/5G PHY FW design, pre-silicon verification and critical metric testing.
  • Working experience on workflow automation for verification and regression testing.
  • Experience with Matlab including good understanding of baseband signal processing algorithms.
  • Solid knowledge of current cellular communication standards: 5G (NR) and 4G (LTE).
  • Strong analytical and problem-solving skills (issue triage, debugging and fixing of defects).
  • Experience in chip bring-up including the use of lab equipment is a plus.
Preferred Qualifications
  • Good understanding of simulator frameworks for link- and system-level simulations as well as FW development.