Cellular Systems Architect (4G/5G) & Network Simulations

Apple Inc.; Sunnyvale (CA); On-site; USD 185,000 - 325,000; Full time

Benefits offered by this job

Medical and dental coverage

Retirement benefits

Discounted products and free services

Tuition reimbursement

Relocation assistance

Employee stock programs

Job summary

Apple Inc. in Sunnyvale, California, seeks a Cellular Software Architect/Developer to advance 4G/5G protocol simulations and contribute to cross-functional teams delivering world‑class wireless technologies.

You will design and maintain network simulations, implement protocol functionality from 3GPP releases, and collaborate with engineers to translate theory into scalable software for next‑gen connectivity.

Qualifications

• Bachelor’s or graduate degree in Electrical Engineering, Computer Engineering, Computer Science or equivalent.
• Strong knowledge of 4G/5G protocol stack and procedures, especially in RRC, MAC, and PHY layers.
• Working knowledge of implementing test basestation and RAN/CN network emulators (Keysight, R&S, Anritsu, Anite, etc.).
• Excellent software development and debugging skills, including design, programming (C, C++, scripting).

Responsibilities

• Design, develop, and maintain network simulations for 4G/5G.
• Translate 3GPP protocol knowledge into protocol implementations and interfaces.
• Collaborate with cross-functional teams to drive innovation.

Skills

4G/5G protocol knowledge

RRC/MAC/PHY expertise

C/C++ programming

Scripting (Python, shell)

Network emulation test tools

Education

Electrical Engineering

Computer Engineering

Computer Science

Tools

Keysight

R&S

Anritsu

Anite

Job description

Apple Inc. in Sunnyvale, California, seeks a Cellular Software Architect/Developer to advance 4G/5G protocol simulations and contribute to cross-functional teams delivering world‑class wireless technologies.

You will design and maintain network simulations, implement protocol functionality from 3GPP releases, and collaborate with engineers to translate theory into scalable software for next‑gen connectivity.