Wireless RF PHY Firmware Engineer

Job Title

Wireless RF PHY Firmware Engineer

Role Summary

Develop and implement embedded firmware for SoC bring-up and wireless connectivity enablement with emphasis on PHY bring-up, RF calibrations, signal-processing algorithm implementation, and performance tuning. The role partners closely with RF/Radio design, PHY/System engineering, product software, validation, and manufacturing teams to enable productization of wireless silicon.

Experience Level

Senior — 10+ years of relevant industry experience.

Responsibilities

Core responsibilities include firmware development for silicon bring-up, validation, and manufacturing support.

• Design and implement embedded firmware for SoC bring-up and wireless PHY/RF enablement.
• Develop system-level APIs and firmware functionality to meet product and manufacturing requirements.
• Implement and tune RF/PHY calibrations and signal-processing algorithms for production readiness.
• Develop SoC test and calibration capabilities for wafer, module, and system factories.
• Debug real-time systems using development boards and lab equipment, working with limited visibility.
• Support pre-silicon validation (simulation, emulation, FPGA prototyping) and post-silicon bring-up, validation, and performance characterization.
• Collaborate cross-functionally with RF/Radio design, DVT, PHY, system, product SW, and manufacturing teams.

Requirements

Must-have technical skills and experience required for immediate impact.

• Proven experience implementing embedded firmware for SoC bring-up and PHY/RF enablement.
• Experience implementing and tuning signal-processing algorithms and RF/PHY calibrations.
• Strong real-time embedded systems skills: multithreaded environments, interrupt handling and latency management, multi-core considerations, and HW/FW semaphore/resource management.
• Hands-on debugging experience with development boards and lab instrumentation.
• Experience supporting pre-silicon validation (simulation, emulation, FPGA prototyping) and post-silicon bring-up and system integration.
• Ability to work effectively across hardware, firmware, validation, and manufacturing teams.
• Nice-to-have: prior experience in wireless SoC, RF/analog, PHY or manufacturing test/calibration.

Education Requirements

Required: Bachelor's degree (BS) and 10+ years of relevant industry experience. No specific field of study or certifications were specified in the posting.

About the Company

Company: Apple

Headquarters: Cupertino, California, United States

Apple is a multinational technology company that designs, manufactures, and sells consumer electronics, software, and online services. Known for its innovative products such as the iPhone, Mac computers, and iPad, Apple emphasizes a strong commitment to high-quality design and user experience.