Apple Inc.
Cellular 5G /4G Physical Layer Firmware Engineer
Apple Inc., San Diego, California, United States, 92189
Cellular 5G /4G Physical Layer Firmware Engineer
Do you have a passion for invention and self-challenge? Do you thrive on pushing the limits of what’s considered feasible? As part of an extraordinary modem team, you’ll craft sophisticated & pioneering embedded firmware that deliver more performance in our products than ever before. You’ll work across subject areas to transform improved hardware elements into a single, integrated 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.
Description As a Cellular 5G/4G Physical Layer 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 state-of-the-art cellular SoCs. We are looking for someone comfortable with all aspects of embedded software development, who thrives in a dynamic multi-functional organization, is not afraid to debate ideas openly, and is flexible enough to pivot on constantly evolving requirements.
Responsibilities
Implement key 3GPP protocols and control/data path processing algorithms with very tight time, latency and energy budgets by interfacing to specialized cellular ASIC hardware.
Examples of processing include 3GPP channels and procedures such as PDCCH, PDSCH,PBCH,PUCCH, PUSCH, PRACH, UL/DL HARQ, Tracking loops.
Examples of 3GPP algorithmic areas include:
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 pioneering tools for build, formal verification and test.
Define methodologies and best practices.
Minimum Qualifications
Experience with hardware control for physical layer4G/5G data path processing
Understanding of 5G and 4G 3GPP protocols
Strong understanding of linear algebra and digital signal processing principles.
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.
Solid 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.
Preferred Qualifications
Bachelor’s degree in electrical engineering, electronics and telecommunications, computer engineering or computer science is required.
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 $120,300 and $181,200, 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 seek to promote 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.
Apple accepts applications to this posting on an ongoing basis.
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Description As a Cellular 5G/4G Physical Layer 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 state-of-the-art cellular SoCs. We are looking for someone comfortable with all aspects of embedded software development, who thrives in a dynamic multi-functional organization, is not afraid to debate ideas openly, and is flexible enough to pivot on constantly evolving requirements.
Responsibilities
Implement key 3GPP protocols and control/data path processing algorithms with very tight time, latency and energy budgets by interfacing to specialized cellular ASIC hardware.
Examples of processing include 3GPP channels and procedures such as PDCCH, PDSCH,PBCH,PUCCH, PUSCH, PRACH, UL/DL HARQ, Tracking loops.
Examples of 3GPP algorithmic areas include:
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 pioneering tools for build, formal verification and test.
Define methodologies and best practices.
Minimum Qualifications
Experience with hardware control for physical layer4G/5G data path processing
Understanding of 5G and 4G 3GPP protocols
Strong understanding of linear algebra and digital signal processing principles.
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.
Solid 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.
Preferred Qualifications
Bachelor’s degree in electrical engineering, electronics and telecommunications, computer engineering or computer science is required.
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 $120,300 and $181,200, 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 seek to promote 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.
Apple accepts applications to this posting on an ongoing basis.
#J-18808-Ljbffr