Cellular 4G/5G System Performance Engineer

Apple Inc

Confirmed live yesterday High trust

Quick summary

Work type
On-site
Location
San Diego, CA
Salary
$122,700–$214,300 / yr
Posted
36 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $191k
This role $168k
$110k most similar roles pay here $237k

This role pays less than 66% of similar roles. Most pay $159,750–$222,425 — the shaded band above. At the midpoint, this role pays about $168k 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.

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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 productizing state-of-the-art cellular SoCs and developing embedded firmware. You will work within a cross-functional team to collaborate with system engineers and firmware developers to understand feature designs and troubleshoot performance issues. Your daily responsibilities include designing performance verification lab use cases, developing test scripts over network emulators, and guiding test executors during the validation of new features. The role requires expertise in 4G/5G physical layer protocols, software engineering principles, and core computer science fundamentals. You will utilize Python, C, C++, or Java to program and automate tests using Keysight, Anritsu, or R&S equipment. This role addresses the technical challenge of optimizing multi-mode cellular systems and ensuring high-performance connectivity for integrated mobile hardware designs.

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 bugs.
  • Troubleshoot performance-related issues in collaboration with system engineers, firmware developers, and integration teams.
  • Analyze and debug cellular device performance issues to work with design teams on resolution.
  • Guide test executors during the validation of new and existing features.
  • Ensure overall UE performance meets expectations through rigorous testing and verification.

What we're looking for

  • A bachelor's degree is required, with a Master's or PhD in wireless communication or electrical engineering preferred.
  • Knowledge of 4G/5G physical layer, protocol stack, and procedures.
  • Knowledge of 4G/5G development, system engineering, and device performance verification.
  • Experience 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 vendors like Keysight, Anritsu, or R&S.
  • Knowledge of network performance optimization, network emulators, silicon prototyping, and emulation systems is preferred.

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