
Senior Cellular Layer-1 Control Software Development Engineer, Wireless Technologies & Ecosystems
Required skills
- C++
- RTOS
- concurrent programming
- cellular chipsets
- embedded software
Nice to have
- RACH
- Scheduling Request
- SRS
- CSI
- Antenna selection algorithms
- computer architecture
Role summary
Apple's Wireless Technologies & Ecosystems team is seeking a Senior Cellular Layer-1 Control Software Development Engineer. This role involves designing, developing, and integrating embedded software for cellular chipsets in Apple products. The engineer will work on groundbreaking cellular technologies, focusing on solving customer connectivity problems and pushing the boundaries of wireless systems. The position requires strong software engineering principles with C/C++, RTOS, and concurrent programming, along with preferred experience in cellular uplink procedures, computer architecture, silicon prototyping, and embedded software debugging.
Description
Apple’s Cellular Software team is seeking talented, highly motivated and disciplined engineers to work across layers on groundbreaking cellular technologies. The position involves identifying and/or developing core cellular technologies that solves everyday problems for customers using iPhone, iPad, Watch and other wireless product lines. We are passionate about keeping our users connected 24/7 wherever they go. This team takes pride in not just coming up with proven software designs but also in disrupting traditional models of the cellular ecosystem. We do whatever it takes to bring user experience to the next level.
Minimum Qualifications
Bachelors and/or Masters degree in Computer Science, Computer Engineering, Electrical Engineering, or related field. 5-10 years of relevant industry experience. Strong understanding of software engineering principles using C and/or C++, Real Time Operating Systems (RTOS) and concurrent programming.
Preferred Qualifications
Deep understanding of cellular uplink procedure - RACH, Scheduling Request, SRS, CSI, Antenna selection algorithms. Working knowledge 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. Experience in SW verification and HW validation utilizing scripting and/or automation frameworks with strong experience debugging embedded software systems using system simulators, spectrum analyzers, oscilloscopes, JTAG debuggers.
Sample Apple interview questions
- 1
Design a typeahead box for a search engine
system designmedium - 2
Design a rate limiter
system designmedium - 3
Architect a key-value store for distributed systems.
system designmedium - 4
Design a system to schedule jobs in a distributed environment
system designmedium - 5
What is an API and how does it work?
technicalmedium
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