Apple · 14 hours ago
Firmware Engineer
Sunnyvale, CA
Full-time
Onsite
Mid Level
$147K/yr - $272K/yr
3+ years expApple is a leading technology company known for its innovative products. They are seeking a dedicated and experienced Firmware Engineer to design, develop, and bring up innovative wireless silicon for various Apple products, contributing to the development of new silicon for Apple ecosystems in a collaborative environment.
AppsArtificial Intelligence (AI)BroadcastingDigital EntertainmentFoundational AIMedia and EntertainmentMobile DevicesOperating SystemsTVWearables
Responsibilities
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
Qualification
Required
BS with 3 plus years of industry experience
Strong embedded SW fundamentals, including knowledge of design and development-flows, real-time constrains, concurrency, multi-processor systems, memory management
Preferred
You have knowledge of wireless systems and protocols such as Wi-Fi or LTE/NR
You bring in excellent problem-solving skills to address technical issues during design, development and maintenance phases
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
Benefits
Comprehensive medical and dental coverage
Retirement benefits
A range of discounted products and free services
Reimbursement for certain educational expenses — including tuition
Discretionary bonuses or commission payments
Relocation
Company
Apple
Apple is a technology company that designs, manufactures, and markets consumer electronics, personal computers, and software.
10001+ employees
H1B Sponsorship
Apple has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (6998)
2024 (3766)
2023 (3939)
2022 (4822)
2021 (4060)
2020 (3656)
Funding
Current Stage
Public CompanyTotal Funding
$5.67BKey Investors
Berkshire HathawayMicrosoftSequoia Capital
2025-05-05Post Ipo Debt· $4.5B
2025-01-16Post Ipo Debt· $0.31M
2021-04-30Post Ipo Equity
Leadership Team
Tim Cook
CEO
Craig Federighi
SVP, Software Engineering
Recent News
Venrock
2025-12-01
2025-09-25
Mac Daily News
2025-09-25
Company data provided by crunchbase