{"title": "Cellular PHY Systems Engineer", "summary": "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. Dynamic, smart people and inspiring, innovative technologies are the norm here. Join us to help deliver the next groundbreaking Apple product. Do you love working on challenges that no one has solved yet? Are you ready to join a team transforming hardware technology? We are searching for a talented engineer with experience in modem design to join our exciting team of innovators. In this role, you will join the system engineering team working on best-in-class modem platforms, developing innovative algorithms and leveraging our unique end-to-end design.", "description": "\u2022Design and simulate state-of-the-art physical layer wireless communication algorithms.\n\u2022Implement system models and perform detailed performance investigations to allow performance sign-off and enable RTL development. \n\u2022Collaborate with digital designers and firmware developers to realize algorithms with optimal PPA (performance/power/area) trade-off.\n\u2022Work with verification teams to define functional and performance test plans, and support the silicon bring-up. \n\u2022Contribute to productization efforts through trouble-shooting of issues found in lab and field, and algorithm optimization using data from real-life use cases.", "key_qualifications": "In-depth knowledge of wireless communication systems with hands-on experience in lab testing & characterization. Experience with wireless and/or cellular communication standards is a plus (specially on 5G NR).\nDeep-knowledge of communication system theory and signal processing will be essential for this role to design algorithms related to channel state feedback, digital precoding and analog beamforming, link adaptation, channel estimation, interference mitigation, MIMO detection, multi-user MIMO, timing and frequency recovery, automatic gain control, RF impairments estimation and correction, forward-error correction, OFDM, etc.\nExperience with Matlab, C/C++ and/or Python for algorithm development, modeling (floating-point and fixed-point) and link-level simulation.\nStrong analytical skills (linear algebra, random processes, detection and estimation, filter design, machine learning, etc.)\nExperience in PPA (power/performance/area) optimization including complexity analysis, mapping to vector signal processors, memory and MIPS estimation, real-time vs non-real time partition, interface definition, RF and BB power saving options.\nExperience in chip bring-up including analysis of UE and/or test equipment logs, being familiar with relevant KPI metrics (UDP/TCP DL/UL Throughput, E2E latency, call establishment, call retention, audio quality metrics such as POLQA, etc.)", "preferred_qualifications": "", "education_experience": "BS and 3+ 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 $143,100 and $264,200, and your base pay will depend on your skills, qualifications, experience, and location.\n\nApple employees also have the opportunity to become an Apple shareholder through participation in Apple\u2019s 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\u2019s Employee Stock Purchase Plan. You\u2019ll 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 \u2014 including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.", "company": "apple"}