Apple

DSP Wireless Systems Engineer

Apple$120K — $160K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • BSEE with 3+ years in wireless communications.
  • Experience in signal processing for wireless systems.
  • Familiarity with measuring RF impairments directly or via loopback.
  • Proficiency in MATLAB, Python, or C/C++ for algorithm development.
  • Hands-on lab testing experience with related equipment like spectrum analyzers.
  • Basic understanding of RF and analog components in wireless systems.

Responsibilities

  • Design and simulate advanced wireless transmitters for high data rates.
  • Explore innovative power amplifier architectures and calibration methods.
  • Architect hardware/software partitioning for efficient processing.
  • Implement system models for analog front-end designs using C and MATLAB.
  • Work with digital designers for efficient digital method implementations.
  • Collaborate with firmware engineers for high-efficiency software applications.
  • Conduct bring-up and characterization tests on real silicon.

Benefits

  • Comprehensive medical and dental coverage.
  • Retirement benefits.
  • Discounts on Apple products and free services.
  • Tuition reimbursement for formal education.
  • Eligibility for discretionary bonuses or commission payments.
Full Job Description
For wireless system, power amplifiers (PA) in the transmitter are the main source of power consumption. To improve efficiency, PA must be designed beyond the classic class-AB, together with enhancement using envelope tracing, or envelope elimination and restoration (EER, or polar transmitter). Those designs come with impairments or nonlinear distortion that need to be clean up using digital signal processing (DSP) techniques. The optimization and calibration of those DSP techniques are the critical to achieve high performing systems. In this technical role, you will be at the center of a silicon design group responsible for using digital algorithm or method to improve the PA efficiency, reducing power consumption, but with acceptable linearity for high data rate applications. Description You will mainly work on architecting various calibration and correction methods for implementation in hardware/firmware and validation of overall performance enhancement through lab measurement. You will collaborate RF/analog designers, software or firmware engineers, digital designers, product engineers and architects to define and specify parts in the wireless systems. You will also get to work with digital designers and firmware designers to realize these methods with power and area efficient digital implementations with high efficiency software implementations, and possibly with hardware acceleration. And you will also get to participate in Bring up, test, characterize, and optimize real silicon in lab to the production efforts. Minimum Qualifications Minimum requirement of a bachelors degree Experience in designing relevant signal processing for wireless communications systems. Understand the methods to estimate various RF impairments via direct equipment measurement or self-testing via loopback. Experience with MATLAB, Python and/or C/C++ for algorithm development, modeling, and simulation. Hands-on experience on lab testing and characterization will be crucial such as spectrum analyzer, signal generator, signal analyzer, power meter. Basic understanding of RF and analog components/modules composited of wireless communication systems, possible impairments from those components, impact to OFDM signals, and corresponding calibration and impairment reduction. Preferred Qualifications MSEE/PhD with proven experience. Proven track record of optimization algorithm, and its applications to RF calibration. Previous experience on digital pre-distortion, crest-factor reduction, nonlinear crosstalk/interference cancellation, and real-chip bring-up in lab. Understand communication theories and signal processing related algorithms design such as timing recovery, signal estimation and detection, automatic gain control, channel estimation, equalization, coding theory. Knowledge in existing wireless communication protocols: 5G-NR or its early iterations, 802.11 WiFi, and/or Bluetooth/BLE. Some experience in circuit design.

About Apple

Apple is a corporation that designs, manufactures, and markets mobile communication and media devices, personal computers, portable digital music players, and sells a variety of related software, services, peripherals, networking solutions, and third-party digital content and applications. Apple provides many products and services, including iPhone; iPad; iPod; Mac; Apple TV; a portfolio of consumer and professional software applications; the iOS and OS X operating systems; iCloud; and accessories, service, and support offerings. It sells its products worldwide through its retail stores, online stores, direct sales force and third-party cellular network carriers, wholesalers, retailers, and value-added resellers to the consumer and also sells third-party iPhone, iPad, Mac and iPod compatible products, including application software and accessories through its online and retail stores. Introduced in 1984, the Macintosh was the first widely sold personal computer with a graphical user interface (GUI). That feature and others such as an improved floppy drive design and a low-cost hard drive that made data retrieval faster helped Apple cultivate a reputation for innovation. Apple was named as the most admired company in the United States in 2008 and in the world from 2008 to 2012 by the Fortune magazine. The company was founded by Steven Paul Jobs, Steve Wozniak, and Ronald Gerald Wayne on April 1, 1976, and is headquartered in Cupertino, California.

Apple Careers

Join Apple, a place where extraordinary people gather to do their best work. Our ever-expanding global team is at the forefront of innovation and leadership in the tech industry. At Apple, we're not just building products—we're crafting the kind of wonder that revolutionizes entire industries. It's the diversity of our people and their ideas that inspires the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Work You’ll Do Embark on a journey with Apple’s market-leading team to help some of the world’s most influential companies navigate their path to digital mastery with cutting-edge technology and services. Transform industries and touch lives with your unique ideas at Apple. Here, you’ll lead through a unique position at the intersection of technology, creativity, and robust industry expertise. Collaborate with a global team of professionals who are at the top of their game in technology and design. Apple isn’t just a company, it’s a community of innovators and passionate thinkers. Introducing the Apple Innovation and Leadership Initiative We are building a market-leading team to drive our efforts in delivering groundbreaking solutions and services. At Apple, job opportunities are abundant, offering you the chance to explore diverse roles from engineering to marketing, all designed to empower your career growth. Do Innovative Work Join the largest group of creative and technical experts in the world—professionals dedicated to redefining what’s possible through technology and innovation. Deliver targeted solutions through a depth and breadth of expertise that’s unmatched, driving forward our commitment to excellence and leadership in every project we undertake. Be Part of a Great Team Engage in a wide range of projects utilizing Apple’s technology and resources. Harness the unparalleled capabilities, global scale, and joint solution development that only Apple can offer. Future-Proof Your Career Advance your career with limitless opportunities at Apple. Go as far as your ambition takes you with unmatched training, development, and certification support. Explore Discover how Apple is leading the way in tech innovation: [With iOS] Businesses can streamline operations and enhance customer interactions... READ MORE Smart home technology integration that sets the standard for convenience and security... READ MORE The Apple Experience Our combined service capabilities, global scale, and joint solution development help clients overcome challenges and lead transformation in their industries. Clients worldwide look to Apple for new strategies and solutions that drive growth and innovation in the digital era. Stay Connected Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players. Whether you’re seeking a professional role, an internship, or a leadership position, Apple offers a variety of employment opportunities. SEARCH APPLE JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. See what exciting and rewarding opportunities await at Apple, a company committed to diversity, innovation, and leadership. Explore job opportunities, employment benefits, and the culture of growth and innovation at Apple. Prepare your resume, hone your interview skills, and ready yourself for a career at one of the most prestigious companies in the world. Join us in pushing the boundaries of what is possible.
Learn more about Apple
Size
154,000 employees
Market Cap
$2,074.3 billion
Industry
Net Income
$63.9 billion
Founded
1976
5 Year Trend
+11.5%
Revenue
$294.1 billion
NASDAQ

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