Apple’s Cellular Software team is seeking engineers to work across layers on groundbreaking cellular technologies, developing and integrating core cellular technologies that solve everyday problems for customers using iPhone, iPad, Watch and other wireless product lines, and disrupting traditional models of the cellular ecosystem.
Requirements
- In-depth hands-on experience with real-time, embedded cellular 3G/4G/5G PHY L1 Software/Firmware
- Strong understanding of software engineering principles using C and/or C++, Real Time Operating Systems (RTOS) and concurrent programming.
- Excellent debugging and troubleshooting skills with hands-on experience in the analysis of system wide issues
- Familiar with 4G/5G procedures such as RACH, CDRX, RF Control, SAR and RF Power control, Measurements, time tracking and maintenance, MAC Timers.
- Solid understanding of embedded real-time control, communications, information theory, estimation, adaptive filtering, control loops; DSP, communication and RF topics a plus.
- Solid understanding of computer architecture with particular emphasis on the HW/SW interfaces of high-speed communication subsystems.
- Experience with emulation systems, and virtual platforms.
Responsibilities
- Design, implement, verify and integrate Cellular Layer 1 control firmware for an innovative mobile wireless communications system.
- Develop key scheduling and control algorithms, while meeting deadlines, and optimizing code for cycle, latency, and energy efficiency.
- Collaborate with global teams and colleagues to optimize solutions.
- Collaborate with other firmware and software designers to define collaborate with RF, physical layer, MAC/RRC, and other required processor subsystems.
- Analyze system wide issues, identifying patterns from the reported issues, finding root causes
Other
- Bachelors of Science or equivalent experience in Electrical Engineering or Computer Science with 10+ years of relevant proven experience
- Demonstrates comfort with pushing beyond the status quo.
- Builds positive relationships within the organization to exchange ideas, resources, and know-how
