5G/4G Cellular Layer1 Control Firmware Engineer
Apple
Other Engineering
Sunnyvale, CA, USA
Posted on Oct 30, 2024
Summary
Posted:
Role Number:200576395
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 a world class modem team, you’ll craft sophisticated groundbreaking embedded firmware that deliver more performance in our products than ever before. You’ll work across fields to transform improved hardware elements into a single, integrated design. Join us, and you’ll help us innovate new cellular 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. Do you want to have an impact on every single Apple product? As a Cellular Layer 1 Control Firmware Engineer in the L1S team, you will be at the core of embedded 5G/4G/multimode cellular firmware development within a silicon design group responsible for creating and productizing advanced cellular SoCs. This role requires expertise in all aspects of embedded software development, the ability to thrive in a dynamic, cross-functional environment, openness to debating ideas, and flexibility to adapt to constantly evolving requirements.
Description
Design, implement and verify Cellular Layer 1 control firmware for an innovative mobile wireless communications system. Develop key scheduling and control algorithms, while meeting strict deadlines, and optimizing code for cycle, latency, and energy efficiency. Collaborate with global teams and colleagues to optimize solutions. Collaborate with other firmware and software designers to define interfaces with RF, physical layer, MAC/RRC, and other required processor subsystems. Study firmware operation timelines, and interactions with different components and make enhancements when necessary.
Minimum Qualifications
- BS and 3+ years of relevant industry experience.
- Understanding of software engineering principles and core computer science fundamentals.
- Proficiency in C programming, and source code control tools.
- Experience in bare metal embedded FW development or Real-Time Operating Systems (RTOS) and parallel computing.
Key Qualifications
Preferred Qualifications
- MS or PhD.
- Hands-on experience in wireless/cellular software or firmware development.
- Solid understanding of computer architecture with particular emphasis on the HW/SW interfaces of high-speed communication subsystems.
- Familiar with 4G/5G procedures such as RACH, CDRX, RF Control, SAR and RF Power control, Measurements, time tracking and maintenance, MAC Timers.
- Understanding of Multi Sim Operation.
- Digital signal processing and/or radio communications knowledge.
- Experience with silicon prototyping, emulation systems, and virtual platforms.
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.