Job Description

Overview Firmware Engineer Location: Sunnyvale, California, United States Department: Hardware Posted: Jul 23, 2025 Description We are seeking talented, creative and disciplined engineers to join the best-in-class team that plays a significant part in the development of new silicon for Apple ecosystems by engaging in a dynamic, highly collaborative environment with the focus on the following goals: Deep understanding of components/modules within wireless communication systems and the corresponding calibration and impairment reduction techniques. Develop methods/algorithms to alleviate hardware induced impairments by calibration, cancellation and other applicable techniques. PHY firmware architecture and design, including calibrations, real-time processing flows, collaboration with RF hardware, microcode, and MAC layer. Develop highly efficient designs delivering outstanding performance, optimizing power and memory footprints while meeting hard-real-time latency requirements. Debug real-time systems with limited visibility, working hands-on with development boards and lab equipment. Collaborate with Radio, MAC, and Systems engineering teams to architect, define and implement innovative algorithms, calibrations, and protocols. Support pre-silicon validation efforts, including simulation, emulation, and FPGA prototyping. Develop SoC test and calibration capabilities for chip, module, and product factories. Support post-silicon bring up, validation, performance characterization, system integration and debugging. Repeatedly measure and optimize results using various test harnesses. Automate calibration and verification processes. Minimum Qualifications BS with 3 plus years of industry experience Preferred Qualifications Hands-on experience and working knowledge of wireless systems and protocols such as Wi-Fi or LTE/NR. Excellent problem-solving skills to address technical issues during design, development and maintenance phases Strong embedded SW fundamentals, including knowledge of design and development-flows, real-time constraints, concurrency, multi-processor systems, memory management. Deep understanding of data structures, object-oriented design, and system architecture in an embedded environment Strong software engineering skills including design, development (using C, C++), scripting (Python), and debugging Familiarity with 32 bit micro-controller architecture, low-level hardware interfaces, register and interrupt programming, bare-metal software development, clock and power management. Experience with configuration (GIT, Perforce) and release management, continuous integration, unit and regression testing. Strong understanding of design strategies for maintainability, scalability, and code reuse. Excellent communication skills – both written and oral. Highly organized, motivated and passionate about driving results Pay & Benefits At Apple, base pay is one part of our total compensation package and is determined within a range. 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. 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. Equal Opportunity / Legal 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 will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation. Apple participates in the E-Verify program where required by law. Learn more about the E-Verify program at . Apple is committed to providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policies apply. This is a drug-free workplace. #J-18808-Ljbffr Apple

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