Job posting has expired

Cellular Data Plane System Architect

Apple, Inc.
United States, San Diego
Apr 15, 2023
Summary Posted: Dec 17, 2022 Role Number: 200451182 Imagine what you could do here. At Apple, new ideas have a way of becoming extraordinary products, services, and customer experiences very quickly. Bring passion and dedication to your job and there's no telling what you could accomplish! Join us to help deliver the next groundbreaking Apple product. Do you love working on challenges that no one has solved yet? As a member of our dynamic group, you will have the unique and rewarding opportunity to craft upcoming products that will delight and inspire millions of Apple's customers every single day. Wireless technologies have become a crucial part of all Apple devices that delight our customers. With the latest developments in cellular, we apply a sophisticated simulation platform to study performance of our devices in complicated radio and network conditions and gain insights for system design. We are searching for a hardworking engineer with 10+/- years experience to join our exciting team of innovators. In this role, you are a key member of the cellular data plane team working on modem systems architecture aspects for the L2/L3/L4 Layers. Key Qualifications Accomplished System Architect with strong upper layer (MAC, RLC, PDCP, SDAP, TCP/IP, QUIC) protocol system design experience, a good understanding of the control plane protocols (RRC, NAS, IMS), and knowledge of the PHY layer. In-depth knowledge of wireless communication protocol implementation (software design/performance optimization, hardware acceleration). Understanding of end to end system performance aspects involving the UE and network is necessary. Familiar with the performance impact of CPU/Cache/Memory architecture, knowledge of system dimensioning tradeoffs, and low power design is a plus. Experience in 3GPP wireless standardization is a significant plus (5G-NR/4G LTE/ UMTS/GSM/CDMA). Experience with Python and/or C/C++ for algorithm development, prototyping, modeling, and simulation. Experience working in a fast-paced startup team is highly appreciated. Description - You will write system specifications requirements and define the data processing architecture for the data plane of the cellular modem, covering 3GPP MAC/RLC/PDCP/SDAP and TCP/IP/QUIC protocols. - You will be responsible for the delivery of modem features from concept, architecture through system design, verification, performance optimization, IODT and commercialization. - You will collaborate with the 3GPP RAN2 standards team on implementation and performance aspects of the spec and use that experience in supporting teams building innovative wireless modems. - You will develop and run C/C++ simulations to help model the design and analyze the performance of the modem protocol data plane architecture Education & Experience BS and 10+ years of relevant experience. Additional Requirements Pay & Benefits At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $144,500 and $250,000, and your base pay will depend on your skills, qualifications, experience, and location. Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. about Apple Benefits. Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.