Cellular Firmware Development Engineer

Cellular Firmware Development Engineer

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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 diagnose sophisticated leading-edge embedded firmware that deliver more performance in our products than ever before. You'll work across disciplines 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 Firmware Engineer on this team, you will be at the center of the 5G/4G/multimode cellular firmware effort within a silicon design and firmware development group responsible for developing and productizing state-of-the-art cellular SoCs. This position requires someone comfortable with advanced cellular mobile technology and all aspects of cellular embedded software development, that thrives in a dynamic cross-functional organization, is not afraid to challenge what exists openly, and is flexible enough to pivot on constantly evolving requirements.

You will participate in silicon bring-up, feature bring-up, and triage a multi-mode L1/PHY firmware architecture of a state-of-the-art mobile wireless communication system. You will troubleshoot and debug L1/PHY modem firmware issues utilizing AI and automation technique. You will develop triaging automation. You will optimize L1 and PHY firmware testability and debug capability. You will run data mining, extraction and formatting to monitor firmware health and debug efficiency.

Responsibilities

• Triaging L1/PHY firmware bugs in collaboration with test team, firmware development team and firmware integration team.
• Developing triage automation in Python and JavaScript coding in collaboration with system team and test team
• Data mining to streamline AI application.
• Profiling L1/PHY firmware tracing to optimize debug capability.

Minimum Qualifications

• BS and a minimum of 3 years of relevant industry experience is required.
• Strong understanding of 5G and 4G 3GPP standards, and competent knowledge on Layer One and Physical Layer control.
• Proficiency in embedded programming language such as C and C++.
• Proficiency in scripting languages like Python, JavaScript.
• Experience with embedded real-time software system bring-up, debug, and test.
• Skilled in debugging embedded real-time multi-core, multi-mode software systems with multiple triage techniques.

Preferred Qualifications

• Advanced degree in electrical engineering, computer science, computer engineering, or data science with 5+ years of relevant experience in wireless communications industry is preferred.
• Experience in AI/ML technology and familiar with LLM, RAG, Transformer, Claude and other AI/ML techniques.

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 $147,400 and $272,100, 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 At Apple, we believe accessibility is a fundamental human right. You'll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Learn about accessibility in Apple's workplace Learn about reasonable accommodations for job applicants Apple accepts applications to this posting on an ongoing basis. Submit Resume Back to search results See all roles in San Francisco Bay Area