Summary
Do you have a passion for invention and self-challenge? As part of a world class modem team, you'll craft sophisticated groundbreaking embedded firmware that deliver more performance in our products than ever before! We'll work across subject areas to transform improved hardware elements into a single, coordinated design. Join us, and you'll help us innovate new wireless systems technologies that continually outperform the previous iterations. By collaborating with other product development groups across Apple, you'll push the industry boundaries of what wireless systems can do and improve the product experience for our customers across the world. As a 5G/4G Cellular ASIC Physical Layer Firmware Engineer on this team, you will be at the center of the embedded 5G/4G/multimode cellular firmware effort within a silicon design group responsible for crafting and productizing powerful cellular SoCs. This position requires someone comfortable will all aspects of embedded software development, that thrives in a multifaceted multi-functional organization, is not afraid to debate ideas openly, and is flexible enough to shift on constantly evolving requirements.

Key Qualifications
Minimum BS and 3+ years of relevant industry experience
Experience with hardware control for physical layer 4G/5G or other modem data path processing
Understanding of 5G and 4G 3GPP protocols
Deep understanding of software engineering principles, and core computer science fundamentals
Fundamental facility with C and C++, compilers, build and source code control tools
Significant experience with memory constrained Real Time Operating Systems (RTOS) and concurrent programming
Solid understanding of computer architecture with particular emphasis on the HW/SW interfaces of high speed communication subsystems.
Experience with silicon prototyping, emulation systems, and virtual platforms
Proficiency debugging embedded software systems. Familiarity with UARTs,JTAG, and oscilloscopes
Some mainstream OS application level development and Python or Perl scripting experience

Description
Implement key 3GPP protocols and data path processing algorithms with very tight time, latency and energy budgets by interfacing to niche tightly coupled cellular ASIC hardware. Examples of processing include 3GPP channels and procedures such as:
•\tPDCCH, PDSCH, PBCH
•\tPUCCH, PUSCH, PRACH
•\tUL/DL HARQ
•\tWork with silicon designers to define HW interfaces, processors, bus, DMA, accelerator, and memory subsystems
•\tSpecify, design, and implement the firmware architecture of an innovative mobile wireless communications system
•\tAssist in the development of pre-silicon emulation systems/virtual platforms and use them for pre-silicon FW design and HW verification
•\tEvaluate and implement powerful tools for build, formal verification and test
•\tDefine methodologies and standard processes

Education & Experience
Minimum BS and 3+ years of relevant industry experience.

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