Job Description

Join the Wireless Technologies and Ecosystems (WTE) team and be part of a best-in-class team of engineers, working with multi-functional teams to drive innovation and develop products used by millions worldwide. We are looking for a highly reciprocal individual who can excel in a high-paced environment. Be ready to make something extraordinary when you come here. Dynamic, encouraging people and innovative, industry-defining technologies are the norm at Apple. The people who work here have reinvented and defined entire industries with our products and services. The same real passion for innovation also applies to our business practices - strengthening our dedication to leave the world better than we found it. You should join Apple if you want to help deliver the next amazing Apple product. Apple's Cellular Software team is seeking hard-working, highly motivated and principled engineers to work across layers on groundbreaking cellular technologies. The position involves developing and integrating core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with confirmed software designs but also in disrupting traditional models of the cellular ecosystem. We go above and beyond to bring user experience to the next level.

Description

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

Minimum Qualifications

Bachelors of Science or equivalent experience in Electrical Engineering or Computer Science with 10+ years of relevant proven experience 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

Preferred Qualifications

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. Experience in SW verification and HW validation utilizing scripting and/or automation frameworks with strong experience debugging embedded software systems using system simulators. Demonstrates comfort with pushing beyond the status quo. Builds positive relationships within the organization to exchange ideas, resources, and know-how





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