> Markdown version of [/jobs/ext/262380-cellular-layer1-control-software-development-engineer-wireless-technologies-ecosystems](https://www.wearedevelopers.com/jobs/ext/262380-cellular-layer1-control-software-development-engineer-wireless-technologies-ecosystems). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Cellular Layer1 Control Software Development Engineer, Wireless Technologies & Ecosystems - **Company:** Apple Inc. - **Location:** San Diego, CA, United States - **Experience:** Starter - **Salary:** $120,300.0 - $210,100.0 - **Contract:** Permanent contract - **Skills:** 4G (Telecommunication), Apple Products, C++ (Programming Language), Computer Engineering, Concurrent Computing, Software Debugging, Embedded Software, Firmware, Formal Verification, Information Theory, Joint Test Action (IEEE Standards), Real-Time Operating Systems, Software Engineering, System Software, Scripting, Control Structures, Information Technology, Wireless Technologies - **Published:** May 21, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=123cd7091e3e6800 ## About the Role Do you have experience in Software engineering?, Do you have a Master's degree?, Join our Wireless Technologies and Ecosystems (WTE) team and drive innovation that matters! We build and seamlessly integrate technologies that enrich people's lives and deliver the best user-experience. We're a passionate and critical team that designs, develops and integrates software for cellular chipsets in Apple products. You will join a hands-on development team that nurtures creativity and generates novel solutions to deliver engineering perfection. Do you have a passion for invention and self-challenge? Do you thrive on pushing the limits of what's considered feasible?, In-depth hands-on experience with real-time, embedded cellular 3G/4G/5G PHY L1 Software/Firmware. Strong knowledge of embedded real-time control, advanced digital signal processing (DSP), communications, information theory, estimation, adaptive filtering, control loops; other advanced DSP, communication and RF topics a plus. 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. Experience with silicon prototyping, emulation systems, and virtual platforms. Minimum Qualifications Bachelors and/or Masters degree in Computer Science, Computer Engineering, Electrical Engineering or related field. 0-3 years of experience in software engineering principles using C and/or C++, Real Time Operating Systems (RTOS) and concurrent programming. Working knowledge of computer architecture with particular emphasis on the HW/SW interfaces of high-speed communication subsystems. ## 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. In this role you will be a key member of the Cellular Layer1 Control Software team.","responsibilities":"Specify, design, and implement PHY/Layer1 Control Software/Firmware of a state-of-the-art mobile wireless communications system. Implement key scheduling, control processing in tight timeline, latency, and energy constraints. Assist in the development of pre-silicon emulation systems/virtual platforms and use them for pre-silicon Layer1 Control SW design and verification. Evaluate and implement leading edge tools for build, formal verification, and test. Define methodologies and standards. ## Related Videos - [Lessons from Steve Jobs - Learnings from the Past for the Future](https://www.wearedevelopers.com/videos/1021-lessons-from-steve-jobs-learnings-from-the-past-for-the-future) - [JavaScript? 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