Cellular 4G/5G System Performance Engineer

Apple Inc

Confirmed live 2 days ago High trust

Quick summary

Work type
On-site
Location
San Francisco, CA
Salary
$129,300–$225,300 / yr
Posted
36 days ago
Freshness
Confirmed live 2 days ago

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $191k
This role $177k
$118k most similar roles pay here $237k

This role pays less than 58% of similar roles. Most pay $159,750–$222,425 — the shaded band above. At the midpoint, this role pays about $177k versus about $191k for comparable roles.

Based on 240 similar postings.

Employer

About Apple Inc

Apple Inc. is a multinational technology company known for designing and manufacturing consumer electronics, software, and online services, including the iPhone, Mac, iPad, and App Store. Industry: Consumer Electronics & Software

Apple Inc currently has 1984 open roles on FindRole.

Listed pay typically runs $175,000–$277,600 across 1590 roles with salary data.

Most-posted roles

View all roles at Apple Inc

At a glance

TL;DR · Cellular 4G/5G System Performance Engineer

As a Cellular 4G/5G System Performance Engineer, you will join a silicon design group focused on developing and productizing state-of-the-art cellular SoCs. You will work within the embedded firmware team to collaborate with system engineers and developers to understand feature designs and implement performance improvements. Your daily responsibilities include designing verification lab use cases, developing test scripts over network emulators to reproduce issues, and guiding test executors during feature validation. The role requires expertise in 4G/5G physical layers, protocol stacks, and device performance verification. You will utilize Python, C/C++, or Java for scripting and automation while utilizing Keysight, Anritsu, and R&S test equipment. This position addresses the technical challenge of integrating hardware elements into a single design to ensure high-performance mobile connectivity across various wireless systems and multi-mode cellular technologies.

What you'll do

  • Design performance verification lab use cases and test cases to identify potential UE performance issues.
  • Develop test scripts over lab network emulators to implement performance tests or reproduce issues.
  • Troubleshoot performance-related issues in collaboration with system engineers, firmware developers, and integration teams.
  • Guide test executors during the validation of new and existing cellular features.
  • Analyze and debug complex cellular device performance issues to resolve them with firmware and design teams.
  • Ensure overall UE performance meets expectations through rigorous testing and verification.

What we're looking for

  • Must have a bachelor's degree.
  • Master's or PhD in wireless communication or electrical engineering is preferred.
  • Knowledge of 4G/5G physical layer, protocol stack, and procedures.
  • Experience in investigating and troubleshooting cellular device performance issues.
  • Understanding of software engineering principles and core computer science fundamentals.
  • Ability to script or program in languages such as Python, C/C++, and Java.
  • Experience with 4G/5G signaling and physical layer test equipment from Keysight, Anritsu, or R&S.
  • Knowledge of network performance optimization and experience with network emulators or silicon prototyping is preferred.

More like this

Similar roles

Cellular 4G/5G System Performance Engineer

Apple Inc

San Francisco, CA 101 days ago $184,700$324,800
4G 5G Firmware Python C C++ Java Layer 2 Layer 3 NAS Network Emulators Silicon Prototyping Keysight Anritsu R&S Automation Scripting
10+ yrs exp

Cellular 4G/5G System Performance Engineer

Apple Inc

San Diego, CA 101 days ago $175,000$308,500
4G 5G Firmware Python C C++ Java Layer 2 Layer 3 NAS Network Emulators Silicon Prototyping Keysight Anritsu R&S Automation Scripting
10+ yrs exp

Cellular System Performance Characterization Engineer

Apple Inc

Sunnyvale, CA 99 days ago $184,700$324,800
5G-NR LTE UMTS WiFi Python C/C++ Matlab RF Signal Processing Firmware 3GPP VSA VSG Spectrum Analyzer Tableau Spotfire Automation Scripting Pre-silicon Emulation
10+ yrs exp

Cellular System Performance Characterization Engineer

Apple Inc

Sunnyvale, CA 99 days ago $129,300$225,300
5G-NR LTE UMTS WiFi RF C C++ Python Matlab 3GPP Signal Processing Firmware VSA VSG Spectrum Analyzer Signal Generator Tableau Spotfire Automation Scripting Silicon Emulation