Wireless Systems Engineer — 6G Cellular Modem

Apple • San Diego, CA

1d

About The Position

We're looking for a Wireless Systems Engineer to join our cellular systems engineering team as we define and build the next generation of cellular technology. This is a rare opportunity to shape the future of wireless communication at a company that ships at global scale as we transition towards 6G. In this role, you'll bring an end-to-end view of wireless systems — spanning 3GPP standards, algorithm design, hardware architecture, and silicon validation — to deliver leading-edge performance and power optimizations that directly improve the user experience across Apple products. If you thrive at the intersection of deep technical theory and hands-on bring-up — and you're excited about pushing beyond 5G into the 6G era — we want to hear from you.

Requirements

• BS and 10+ years of relevant industry experience.
• Strong knowledge of cellular communication standards: 6G (emerging), 5G NR, 4G LTE — particularly RAN1 3GPP.
• Deep expertise in communication system theory and signal processing: LDPC, Polar, and Turbo coding; signal estimation and detection; AGC; RF impairment estimation and correction; channel estimation; OFDM; MIMO detection; waveform generation and up-sampling.
• Proficiency in MATLAB, C/C++, and/or Python for algorithm development, fixed/floating-point modeling, and link-level simulation.
• Experience leveraging Generative AI and LLM-based tools to accelerate engineering workflows — e.g., algorithm prototyping, code generation, simulation analysis, or technical documentation

Nice To Haves

• MS or PhD in Electrical Engineering, Communications, or Signal Processing, with 10+ years of relevant industry experience.
• Experience in low-power algorithm design for power-constrained mobile platforms.
• Experience in end-to-end timeline analysis for latency-critical PHY processing chains.
• Hands-on silicon bring-up experience, including use of lab equipment: protocol testers, spectrum analyzers, signal generators, power meters.
• Strong mathematical foundations: linear algebra, stochastic processes, detection & estimation theory.
• Familiarity with 3GPP standardization processes, RAN2, RAN4 topics and emerging 6G study items (e.g., AI/ML for air interface, sub-THz bands, joint communication and sensing, reconfigurable intelligent surfaces).
• Track record of published research or patents in wireless communications is a plus.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees