Apple · 1 day ago
AC-DC Adapter Design Engineer
Cupertino, California, United States
Full-time
Onsite
Senior Level, Lead/Staff
$147K/yr - $272K/yr
10+ years expApple is a company that creates revolutionary products and is seeking an experienced AC-DC Adapter Design Engineer to develop high-density offline power supplies for portable products. In this role, you will lead the design process from concept to production, ensuring the performance and reliability of adapters used by millions of customers worldwide.
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Responsibilities
Owning up AC-DC adapter design from architectural concept through mass production
Performing detailed analysis, modeling, simulation, and hands-on prototype bring-up and validation in the lab
Ensuring robust integration by working closely with mechanical, thermal, reliability, and manufacturing partners
Driving key design decisions and root-cause complex issues using strong analytical and problem-solving skills
Providing technical guidance to junior engineers while maintaining a primary focus on deep, hands-on technical contribution
Qualification
Required
Bachelor's in EE or related field and a minimum of 10 years of industry experience
Experience with AC/DC power conversion topologies such as flyback, resonant converter and PFC design
Strong foundation in semiconductor and power electronics fundamentals, including silicon/GaN behavior, circuit analysis, control systems, magnetics, and embedded systems for power control
Proven ability to lead technical discussions and work effectively with cross-functional mechanical, thermal, reliability, and manufacturing teams
Preferred
Master or Ph.D. in EE, with 5 years or equivalent of relevant working experience
Experience in high-volume adapter development, with familiarity in manufacturing processes, tolerances, and production variation
Mastery of offline AC-DC power supply design, including topology selection (flyback, forward, LLC, other Resonant topologies) and high efficiency PFC design with advanced analog/digital control techniques
Prior experience with a power supply module or adapter company is highly desirable
End-to-end design capability - analytical modeling, in-depth simulation experience including parasitics, prototype bring-up, validation, and design-for-manufacturing
Expertise in safety and EMC regulatory compliance, component selection, high-density layout, and cutting-edge efficiency optimization (including no-load and light-load techniques)
Deep understanding of thermals, mechanical integration, packaging, and power density tradeoffs
Experience in high frequency magnetic designs including magnetic material selection and various winding construction for power transformers and filters
Excellent communication and presentation skills
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
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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
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2025-12-01
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Mac Daily News
2025-09-25
Company data provided by crunchbase