WiFi MAC Systems EngineerSunnyvale,California,United StatesHardwareAt Apple, we work every single day to craft products that enrich people’s lives. Do you love working on challenges that no one has solved yet? As a member of our Wireless Silicon Design group, you will have the unique and rewarding opportunity to develop upcoming and future generations of products to support emerging applications that will delight and encourage millions of Apple’s customers every single day! In this technical role, you will be at the center of our silicon design group responsible for the wireless systems design of our innovative wireless SoC products. You will have the chance to create algorithms and architectures of wireless communication systems, as well as collaborate with extraordinary HW, SW designers and architects to implement, verify, validate and bring up SoC products to production quality, providing them to millions of Apple customers!DescriptionIn this role, core responsibilities include, but are not limited to the following: • Designing and simulating wireless communication systems for very high data rate applications focusing on MAC layer system design and optimizations. • Analyzing and improving the efficiency of wireless MAC layer protocols, focusing on throughput, latency and overall network performance. • Implementing MAC system models and investigating algorithms for performance enhancements, design and validate them to allow performance sign-off and enable system developments. Defining the control procedures of the MAC layer hardware modules to achieve robust and optimal performance throughput and latency. • Collaborating with PHY system team and cross-functional teams to integrate MAC layer algorithms into system architecture • Collaborating with firmware designers to realize these methods with high efficiency software implementation and possibly with using hardware acceleration. • Bringing up, testing, characterizing and optimizing real silicon in the lab. • Documenting design processes and performance outcomes, providing detailed reports and insights for continuous improvements.Minimum QualificationsBS and 3+ years of relevant experience.Experience in crafting signal processing and wireless communications systemsStrong understanding of WiFi MAC layer protocol and algorithm design (such as EDCA mechanism, OFDMA and MU MIMO MAC layer protocol, multi-user scheduling algorithm etc.)Key QualificationsPreferred QualificationsExperience in modem architecture, microprocessor architecture, hardware and software control.Experience of SoC design and validation to support wireless communication system.Working knowledge of WiFi systems and hands-on experience with lab testing and characterization.Knowledge in existing wireless communication protocols, such as 5G/LTE/WCDMA/GSM, 802.11a/b/g/n/ac/ax/be, 802.11ad/ay or Bluetooth/BLE.Experience on low-power algorithm design for power critical application.Experience with multi-radio coexistence management.Experience with Python and/or C/C++ for algorithm development, modeling, and simulation.Experience with network simulator such as OPNET, NS2 or NS3 is a plus.Experience on bring up of real silicon in lab and being able to efficiently use lab equipment (such as spectrum analyzer, signal generator, power meter, etc.).Advanced degree in EE or Computer Engineering; MS or Ph.D preferredEducation & ExperienceAdditional RequirementsPay & BenefitsAt 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.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.Learn more ( 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.Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant. ( FooterApple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant (Opens in a new window) .Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants. United States Department of Labor. Learn more (Opens in a new window) .Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you’re applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines (opens in a new window) applicable in your area.Apple participates in the E-Verify program in certain locations as required by law. 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