Cellular Systems Simulations Engineer

2 days ago

San Diego, California, United States Apple Full time
Job Title: Cellular Systems Simulations Engineer

At Apple, we're pushing the boundaries of innovation and technology. As a Cellular Systems Simulations Engineer, you'll be part of a dynamic team responsible for designing and developing cutting-edge wireless systems for our pioneering SoC products.

Key Responsibilities:
  • Design and develop innovative cross-layer simulation model infrastructure and tool sets for cellular R&D across teams within Apple.
  • 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, 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 modeling, 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:
  • BS and 3+ years of relevant experience.
  • 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.
What We Offer:
  • Comprehensive medical and dental coverage.
  • Retirement benefits.
  • A range of discounted products and free services.
  • Reimbursement for certain educational expenses.
  • Discretionary bonuses or commission payments.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.

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