Cellular Systems Engineer - System-Level Simulations

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, sensible people and inspiring, innovative technologies are the norm here. Join us to help deliver the next groundbreaking Apple product. Do you love working on challenges that no one has solved yet? Are you ready to join a team redefining hardware technology? We are searching for a dedicated engineer to join our exciting team of innovators. In this role, you will be a key member of the system engineering team working on the features and requirements of modem systems.

Description

You will take part in the pioneering work of designing and developing innovative cellular system-level simulation models and infrastructure, which will play a meaningful role in standardization as well as in defining future 5G and 6G cellular modem products.

Responsibilities

• Define and implement cellular 5G and 6G system-level models for PHY, MAC, RLC, PDCP, SDAP and RRC layers
• Design state-of-the art channel models for system-level applications including sub-THz and ray-tracing models
• Integrate our cellular models with network simulators like ns-3
• Design system-level test cases for feature verification, drive feature bring-up and issue resolution
• Design and implement innovative algorithms during the 3GPP standardization process (RAN1, RAN2, RAN4) for next generation cellular communication systems
• Perform simulation studies on system- and network level to assess the impact of new features and algorithms including end-to-end (PHY to Application), coexistence with WiFi/BT and cross-layer optimizations
• Contribute to simulation framework related topics, such as regression testing infrastructure, test coverage analysis, automation scripting, tool and library integration
• Closely collaborate with multi-functional customers on requirements, architecture, project plans and feature bring-up

Minimum Qualifications

• BS and a minimum of 3 years relevant industry experience.
• Deep knowledge of communication system theory as well as Layer 1, 2 and 3 signal and protocol processing;
• In-depth knowledge of wireless communication systems with hands-on experience in 4G/5G PHY design, channel models, pre-silicon verification and critical metric testing;
• Experience with Matlab, C/C++ and/or Python including significant knowledge of algorithms and data structures, memory and runtime profiling as well as code optimization techniques;
• Solid knowledge of current cellular communication standards: 5G (NR) and 4G (LTE);
• Strong analytical and problem-solving skills (linear algebra, random processes, detection and estimation, debugging and fixing of defects).

Preferred Qualifications

• MS in Computer Science or Electrical/Information Engineering with 7+ years of working experience or PhD in relevant field with 3+ years of working experience is preferred.
• Validated track-record in SW and link/system level simulator design in C/C++, including experience with simulator frameworks and configuration management;
• Work experience related to RAN1/RAN2/RAN4 standardization submissions is a plus;
• Experience utilizing AI/ML tools and techniques in wireless communication system design is a strong plus.

Pay & Benefits

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 $147,400 and $272,100, 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.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote 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. Learn more about your EEO rights as an applicant .

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Client-provided location(s): Emeryville, CA

Job ID: apple-200627261-3401

Employment Type: OTHER

Posted: 2025-10-26T19:11:50