Role & seniority: Cellular/Connectivity Product System Test Engineer (mid-level)

Stack/tools: 4G/5G NR and LTE protocol stack; IMS; UE, RAN, Core Network concepts; PHY/L1; WiFi; Bluetooth; performance testing; Network Simulator (Callbox); eNB/gNB testing; Python, Shell scripting

Top 3 responsibilities

Perform functional testing of Baseband, Telephony, WiFi, and Bluetooth features on iPhone/iPad/Watch
Troubleshoot, logAnalyze, and identify cellular/connectivity issues to ensure high-quality releases
Collaborate to validate new products, document defects, and drive issue resolution

Must-have skills

Bachelor’s degree in Electrical Engineering or Computer Science
Hands-on troubleshooting and log analysis in 4G/5G environments
Deep knowledge of NR/LTE protocol stack and IMS; understanding of UE, RAN, and Core Network

Nice-to-haves

PHY/L1 experience; WiFi/Bluetooth performance testing
Experience with Callbox or eNB/gNB testing
Coding/automation: Python, Shell; ability to work independently; detail-oriented; strong communication (Chinese & English)
Location & work type: Not specified in provided text; no explicit work-type stated.

Full Description

Apple is one of the world’s most successful businesses. We are primarily a consumer electronics business producing hardware (iPhone, iPad, Mac, Apple Watch, AirPods, Apple TV), software (iOS, MacOS, Safari) and services (Apple Music, App Store, iCloud, News+ and Apple TV+). Over 1.4 billion of our devices are currently in use across the world, whilst Apple Music has over 60 million subscribers globally We care about what we do, and believe Apple is a force for good. Apple is a company full of exciting ideas and innovative people, who are also committed to upholding the highest moral, legal and ethical standards in everything we do. We believe technology can serve humankind's deepest values and highest aspirations. Protecting individuals’ privacy, promoting diversity and inclusivity, providing products that educate, and are accessible to all needs, are fundamentals within our business.

DESCRIPTION

WTE PST team is looking for a motivated, highly-technical Cellular/Connectivity Product System Test Engineer with excellent problem solving and communication skills. You will join a dynamic team responsible for qualifying the latest iPhone/iPad/Watch. Your focus will be testing the Baseband, Telephony, WiFi, Bluetooth features in Apple’s innovative new products. The successful candidate will complete the functional testing and identify cellular/connectivity issues to ensure high quality releases.

MINIMUM QUALIFICATIONS

Bachelor’s degree or above in Electrical Engineering/Computer Science. Hands-on

experience in trouble shooting and log analysis: 4G/5G and beyond Deep Knowledge in NR & LTE Protocol stack and IMS flow Good Understanding on Wireless

communication system: UE, RAN and Core Network

PREFERRED QUALIFICATIONS

PHY/L1 experience on Cellular or WiFi, Bluetooth Experience with Cellular, WiFi, Bluetooth performance testing Experience with Network Simulator (Callbox) or eNB/gNB testing Coding & Automation scripting skill with Python, Shell, etc. Able to work independently with minimal direction Must be details-oriented Excellent communication & interpersonal skills, both in Chinese & English