Embedded 5G/4G Cellular Physical Layer Data Path Signal Processing Firmware Engineer
Apple
Sunnyvale, CA, USA
Posted on Oct 23, 2024
Summary
Posted:
Role Number:200574739
Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us making each other’s ideas stronger. That happens because every one of us shares a belief that we can make something wonderful and share it with the world, changing lives for the better. It’s the diversity of our people and their thinking that inspires the innovation that runs through everything we do. When we bring everybody in, we can do the best work of our lives. Here, you’ll do more than join something — you’ll add something. As a Wireless Embedded Physical Layer Data Path Signal Processing 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 with all aspects of embedded software development, has experience writing firmware, which is tightly coupled to hardware, is not afraid to debate ideas openly, and is flexible enough to shift on constantly evolving requirements.
Description
Implement key 3GPP digital signal processing algorithms with very tight time, latency and energy budgets by interfacing to specialized cellular ASIC hardware. If you have strong hardware programming understanding, you will implement firmware which implements 3GPP channels and procedures such as: PDCCH, PDSCH, PBCH PUCCH, PUSCH, PRACH UL/DL HARQ. If you have linear algebra and signal processing understanding, you may implement some of the following: - 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 - Specify, design, and implement the firmware architecture for superior power, performance, and cost. - Assist in the development on pre-silicon emulation systems/virtual platforms and use them for verification. - Evaluate and implement groundbreaking tools for build, formal verification and test. - Define methodologies and standard processes
Minimum Qualifications
- BS and 10+ years of relevant industry experience.
- Experience either with implementing digital signal processing algorithms using special purpose digital signal processing HW -OR- wireless physical layer channels by interfacing to special purpose hardware.
- Experience leading feature delivery for a complete firmware/software life cycle.
- Experience architecting system level features.
- Deep understanding of software engineering principles, and core computer science fundamentals.
- Fundamental facility with C and C++, compilers, build and source code control tools.
- Experience with silicon prototyping, emulation systems, and virtual platforms.
- Solid understanding of computer architecture with particular emphasis on the HW/SW interfaces of high-speed communication subsystems.
- Some mainstream OS application-level development and Python or Perl scripting experience.
Key Qualifications
Preferred Qualifications
- Understanding of 5G and 4G 3GPP protocols.
- Some familiarity with wireless communications.
- Significant experience with memory constrained Real Time Operating Systems (RTOS) and concurrent programming.
Education & Experience
Additional Requirements
Pay & Benefits
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.