6G Modem Systems Architect — End-to-End Wireless

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

Job summary

Apple Inc. is seeking a highly skilled Cellular Modem Systems Engineer in Sunnyvale, CA to own end-to-end modem system design from feature set to silicon bring-up. You will collaborate with SoC, PHY, and L1 SW teams to meet end-to-end requirements and drive 6G innovations.

You will analyze trade-offs, develop algorithms for PHY/L1, and optimize performance and power for real-world deployments across Apple products. Strong background in 3GPP standards is essential.

Qualifications

• BS in Electrical Engineering or Computer Engineering or related field, with 10+ years of experience.
• Strong knowledge of cellular standards: 6G (emerging), 5G NR, 4G LTE, especially RAN1 3GPP.
• Proficiency in MATLAB, C/C++, and/or Python for algorithm development and simulations.
• Experience using Generative AI and LLM tools to speed up engineering workflows.

Responsibilities

• Define & architect system-level features and requirements for next-generation cellular modems, focusing on 6G evolution and advanced PHY/L1 capabilities.
• Own the E2E system view — connect 3GPP requirements, algorithm trade-offs, HW/FW constraints, and product targets.
• Design algorithms for the physical layer, across layers and L1/RF control to optimize performance and power.
• Model & simulate algorithms in floating-point and fixed-point using MATLAB, C/C++, and/or Python; validate via link-level simulations or data from deployments.
• Optimize user experience by driving performance and power efficiency across the wireless stack with real-world deployment insights.

Skills

MATLAB

C/C++

Python

Generative AI/LLM tooling

6G/5G NR/4G LTE (RAN1) knowledge

System-level design

End-to-end wireless systems

Education

BS in Electrical Engineering or Computer Engineering or related field

Job description

Apple Inc. is seeking a highly skilled Cellular Modem Systems Engineer in Sunnyvale, CA to own end-to-end modem system design from feature set to silicon bring-up. You will collaborate with SoC, PHY, and L1 SW teams to meet end-to-end requirements and drive 6G innovations.

You will analyze trade-offs, develop algorithms for PHY/L1, and optimize performance and power for real-world deployments across Apple products. Strong background in 3GPP standards is essential.