Job Details

Job Information

Modem System Test Engineer
AWM-5273-Modem System Test Engineer
10/21/2025
10/26/2025
Negotiable
Permanent

Other Information

www.apple.com
Sunnyvale, CA, 94086, USA
Sunnyvale
California
United States
94086

Job Description

No Video Available
 

Weekly Hours: 40

Role Number: 200626680-3956

Summary

Apple's Cellular Software team is seeking passionate, innovative, and disciplined engineers to revolutionize the way people stay connected. In this role, you will work across the full protocol stack, spanning PHY, RF, SIM, NAS, AS, and iOS interfaces, to develop and optimize groundbreaking cellular technologies for iPhone, iPad, Apple Watch, and other wireless products. Our team is driven by a relentless commitment to pushing the boundaries of what's possible, not just improving software design but reimagining the cellular ecosystem itself. You will collaborate closely with architecture, firmware, carrier engineering, and system test teams, with your work directly impacting millions of users worldwide. If you are excited to innovate at the intersection of wireless systems and intelligent automation, we invite you to join us in transforming the future of connectivity.

Description

As a Wireless Modem System Test Engineer, you will play a critical hands-on role in ensuring the highest quality and performance of cutting-edge cellular modem technologies. You will work closely with platform architecture, firmware/protocol development, standardization, system test, and carrier engineering teams to diagnose, analyze, and optimize modem performance across LTE, 5G NR, and IoT systems. Your work will span all layers of the protocol stack from PHY and RF to NAS, AS, IP, and TCP/UDP, giving you exposure to the full modem lifecycle, including baseband and protocol optimization. You will be responsible for defining, developing, and automating comprehensive test cases using industry-leading platforms, while leveraging your expertise in Python, AI/ML, and advanced debugging tools to solve complex technical challenges.

Minimum Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, Telecommunications, or a related field

  • With solid experience in wireless system testing, firmware validation, cellular certification, and IoT/cellular performance evaluation.

  • Proven experience testing advanced modem features such as carrier aggregation, VoLTE/VoNR, MIMO, mobility procedures, ENDC CA, NRDC, FR1, and FR2, using industry-standard platforms (e.g., Keysight, Anritsu, R&S, Spirent).

  • Hands-on expertise in AI/ML concepts and their application to test optimization and large dataset analysis, using tools such as Pandas, TensorFlow, and PyTorch for data processing and visualization.

  • Advanced skills in debugging and root cause analysis using tools like QXDM, QCAT, Wireshark, and chipset-specific logging tools; demonstrated ability to troubleshoot modem issues across all protocol layers.

Preferred Qualifications

  • Proficiency in diagnosing complex system-level issues through lab/field experimentation, analytics, and log analysis.

  • Excellent analytical & critical thinking skills,

  • Excellent communication & interpersonal skills.

Pay & Benefits

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. (https://www.apple.com/careers/us/benefits.html)

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 (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12ScreenRdr.pdf) .

Other Details

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