6G Cellular Modem Systems Architect

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

Benefits offered by this job

Medical and dental coverage

Retirement benefits

Stock programs

Tuition reimbursement

Relocation

Job summary

Apple is seeking a Cellular Modem Systems Engineer in Sunnyvale to own the end-to-end lifecycle of cellular modem systems, from feature definition to silicon bring-up and productization. You will collaborate with eco-system teams, SoC, PHY, PHY HW, PHY FW, and L1 SW to ensure system requirements are met across the full stack.

The role emphasizes 6G-focused development, algorithm design for PHY/L1, and optimization for performance and power.

Qualifications

• BS in Electrical Engineering, Computer Engineering, or related field.
• 10+ years of relevant industry experience.
• Strong knowledge of cellular standards: 6G (emerging), 5G NR, 4G LTE, RAN1 3GPP.
• Proficiency in MATLAB, C/C++, and/or Python for algorithm development, modeling, and simulation.
• Experience leveraging Generative AI and LLM-based tools to accelerate engineering workflows.

Responsibilities

• Define & architect system-level features and requirements for next-generation cellular modems with a focus on 6G evolution and advanced PHY/L1 capabilities.
• Own the end-to-end system view—align 3GPP standards, algorithms, HW/FW architecture, and product targets into cohesive solutions.
• Design algorithms for the physical layer across layers and L1/RF control to optimize performance and power.
• Model & simulate algorithms using MATLAB, C/C++, and/or Python; validate via link-level simulation or field data comparisons.
• Drive performance and power efficiency improvements across the wireless stack to enhance throughput, latency, battery life, and connectivity reliability.

Skills

Cellular standards knowledge

Algorithm development

Generative AI / LLM tools usage

End-to-end system thinking

Education

BS in Electrical Engineering or related field

Tools

MATLAB

C/C++

Python

Job description

Apple is seeking a Cellular Modem Systems Engineer in Sunnyvale to own the end-to-end lifecycle of cellular modem systems, from feature definition to silicon bring-up and productization. You will collaborate with eco-system teams, SoC, PHY, PHY HW, PHY FW, and L1 SW to ensure system requirements are met across the full stack.

The role emphasizes 6G-focused development, algorithm design for PHY/L1, and optimization for performance and power.