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Embedded 5G/4G Cellular Physical Layer DSP Firmware Engineer

Apple, Inc.
United States, Cupertino
October 25, 2023
Summary Posted: Sep 29, 2023 Role Number: 200450899 Do you have a passion for invention and self-challenge? As part of an extraordinary modem team, you'll craft sophisticated innovative 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 Wireless Embedded Physical Layer DSP 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 10+ years of relevant industry experience. Experience implementing digital signal processing algorithms using special purpose digital signal processing HW 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 Proven 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 * Design interfaces and call flows for DSP processing * Lead others toward DSP feature delivery and support * Implement key 3GPP digital signal processing algorithms with very tight time, latency and energy budgets by interfacing to niche cellular ASIC hardware. Examples of 3GPP algorithmic areas include: Channel Estimation Channel State Feedback Interference Cancellation Cell Search and Measurement Beam Measurement Work with systems engineers to refine signal processing algorithms for efficient firmware/hardware execution Work with silicon designers to define HW interfaces, processors, bus, DMA, accelerator, and memory subsystems Specify, design, and implement the firmware architecture of an innovative mobile wireless communications system Assist in the development of pre-silicon emulation systems/virtual platforms and use them for pre-silicon FW design and HW verification Evaluate and implement powerful tools for build, formal verification and test Define methodologies and standard processes Education & Experience Minimum BS and 10+ years of relevant industry 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 $170,700 and $300,200, 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. 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.