Wireless Systems Engineer

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Description

APPLE INC has the following available in Cupertino, California and various unanticipated locations throughout the USA. Design, integrate, and characterize wireless System-on-a-Chip (SOC). Design, integrate, and characterize wireless System-on-a-Chip (SOC). Design and verify the wireless algorithm along with Algorithm designers using both emulation and real silicon environment during the pre and post-silicon chip cycle, respectively. Characterize the algorithm by analyzing the signal quality in the spectrum analyzer and RF test instrument. Python-based framework to implement End-to-End performance verification for the wireless chipset. Implement system models for wireless communication systems and impairments in Matlab and C (Implement Matlab modeling and C-Model register-based simulation environment for wireless algorithms and RF impairments to design, simulate, and implement state-of-the-art physical layer wireless communication algorithms. Design wireless calibration algorithms like Transmit Power Control, IQ Correction, Non-Linearity mitigation, and DC Offset are simulated in Matlab and Register-based Python infrastructure to understand the impairment effect and suggest mitigation strategies. Design algorithms for wireless system impairment mitigation. Analyze the signal quality using a spectrum analyzer or RF test instrument to understand the RF impairments like IQ imbalance, gain, and phase mismatch. Mitigate the abnormalities by tuning the RF parameters for high signal quality and performance. Bring up and validate algorithms on emulation and real silicon like Beamforming, Noise cancellation, and OFDMA in both pre-and post-silicon in emulation and real silicon platform to ensure bug-free design. The analysis uses Matlab and RF test instruments to simulate and visualize the signal abnormalities. Designed and implemented Python to bring up, integrate, and debug the environment. Post-silicon chips were brought up using a Python-based environment to verify register level functionality of the wireless chipset and its algorithms and features. Develop a framework to Integrate Software Firmware Hardware and debug both hardware and software bugs pre and post-silicon. Develop test plans and collect and analyze test results. Develop a software framework to verify the wireless algorithm and features, design a test plan to satisfy IEEE standards, and explore the test results in sophisticated automated visualization methods like Tableau. Identify and debug issues, which include Pre-silicon and post-silicon bringup and integration efforts to identify bugs and algorithm issues and troubleshoot the root cause of the issue along with Algorithm designers and suggest solutions. Design and implement test scripts that involve automation framework testing infrastructure designed to verify, validate, and integrate the wireless system-level algorithms and features.40 hours/week. 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 $151,091 - $220,900/yr and your base pay will depend on your skills, qualifications, experience, and location. PAY & BENEFITS: 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: https://www.apple.com/careers/us/benefits.html. Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

• Master's degree or foreign equivalent in Electrical Engineering, Computer Engineering or related field and two years of experience in the job offered or related occupation.
• 2 years of experience with each of the following skills is required:
• Analyze the wireless signal in spectrum analyzer & RF test instrument and decode for signal quality improvement.
• Utilizing Matlab to implement system models for wireless communication system and RF impairments
• Utilizing channel coding and error correction methods like BCC & LDPC for encoding procedure of OFDM system for design verification.
• Utilizing PHY layer communication algorithms like Beamforming and OFDMA using highly efficient software implementation and hardware acceleration.
• Python or equivalent programming to implement register-level programming of wireless algorithms and design improvements.
• Experience in wireless receiver sub system like Packet Detection, Channel Estimation, Equalization and Demodulation to simulate, analyze and understand the impairments of RF path for performance improvements.

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