Mixed-Signal Modeling/Verification Engineer

Apple

Apple designs and develops world-class devices and technologies, focusing on innovation and engineering excellence.

San Diego, CA, USA

$166,600 - $296,300

Embedded

Staff Software Engineer

In-Person

5,000+ Employees

10+ years of experience

Hardware

Description For Mixed-Signal Modeling/Verification Engineer

Apple's wireless silicon development team is seeking an exceptional Mixed-Signal Modeling/Verification Engineer to join their innovative hardware team. This role combines analog/RF expertise with digital verification, focusing on creating behavioral models and verification environments for complex mixed-signal systems.

The position offers an opportunity to work on next-generation Apple devices, contributing to the development of revolutionary products. As part of the modeling and verification team, you'll be responsible for creating SystemVerilog-based behavioral models, testbenches, and verification environments for analog/RF/mixed-signal blocks and SOCs.

The role demands a strong background in both analog circuit design and digital verification methodologies. You'll work with cutting-edge technologies and collaborate across teams to ensure the highest quality standards in Apple's hardware development. The position offers competitive compensation ($166,600 - $296,300), comprehensive benefits, and the chance to work with industry-leading professionals.

Key technical areas include SystemVerilog, real-number modeling, UVM framework, and experience with various analog/RF blocks like ADCs, DACs, PLLs, and Serdes. The ideal candidate will have 10+ years of experience, strong problem-solving skills, and the ability to work in a fast-paced, collaborative environment.

This role presents an exceptional opportunity to be part of Apple's commitment to engineering excellence and innovation, working on products that impact millions of users worldwide. The position offers professional growth, technical challenges, and the chance to contribute to Apple's next generation of groundbreaking hardware solutions.

Last updated 2 months ago

Responsibilities For Mixed-Signal Modeling/Verification Engineer

Develop accurate and simulation-efficient analog behavioral models for Analog/RF blocks in SystemVerilog
Build and reuse real-numbered analog behavioral models of the Analog and Mixed-Signal Circuits
Verify behavioral models accuracy against analog circuits
Review specifications and collaborate with design team
Build and reuse monitors and checkers for RF, Mixed-Signal, and Digital blocks
Debug failures and manage bug tracking
Write scripts for automation and improve Mixed-Signal verification methodology
Develop top/block-level Mixed-Signal and Digital testbenches

Requirements For Mixed-Signal Modeling/Verification Engineer

Python

Linux

BS with 10+ years of relevant industrial experience
Hands-on experience in Mixed-Signal Verification and Real Numbered Modeling of Mixed-Signal Systems
Analog circuit design knowledge and understanding of basic analog devices

Benefits For Mixed-Signal Modeling/Verification Engineer

Medical Insurance

Dental Insurance

401k

Equity

Education Budget

Relocation Benefits

Comprehensive medical and dental coverage
Retirement benefits
Employee stock programs
Education reimbursement
Discretionary bonuses
Relocation benefits
Employee Stock Purchase Plan
Product discounts
Free services

Apple

Apple designs and develops world-class devices and technologies, focusing on innovation and engineering excellence.

San Diego, CA, USA

$166,600 - $296,300

Embedded

Staff Software Engineer

In-Person

5,000+ Employees

10+ years of experience

Hardware

Apple

Count Numbers with Unique Digits

Data Structures & AlgorithmsMedium

Given an integer n, return the count of all numbers with unique digits, x, where 0 <= x < 10^n. For example: Input: n = 2 Output: 91 Explanation: The answer should be the total numbers in the range of 0 <= x < 100, excluding 11,22,33,44,55,66,77,88,99 Input: n = 0 Output: 1

Dynamic Programming

Recursion

Apple

How do you debug a lagging, mission-critical server using only a terminal?

System DesignMedium

You're troubleshooting a mission-critical server (cannot be rebooted) that is experiencing severe lag. You only have terminal access. Describe your debugging process, including specific commands and tools you'd use to diagnose the issue. For example, would you start by checking CPU usage, memory consumption, or disk I/O? What commands would you use to identify the most resource-intensive processes? How would you investigate potential network bottlenecks or file system issues? Be as detailed as possible in outlining your approach to pinpointing the cause of the lag and suggesting potential solutions, keeping in mind that a reboot is not an option.

Arrays

Strings

Two Pointers

Stacks

Binary Search

Sliding Windows

Linked Lists

Trees

Recursion

Graphs

Dynamic Programming

Greedy Algorithms

Bit Manipulation

Database Problems

Apple

Describe your approach to debugging malfunctions.

Behavioral

Let's discuss your approach to debugging malfunctions. Imagine you are on call for a critical e-commerce platform, and users start reporting that they are unable to complete their purchases. The error logs show a vague Transaction Failed message with no clear indication of the root cause. The customer service team is overwhelmed with complaints, and the business is losing revenue every minute the issue persists. Describe your initial steps in diagnosing the problem.** What tools or techniques would you use to gather more information? Would you focus on the front-end, back-end, or both? How would you prioritize your debugging efforts?** Would you start by examining the most recent code changes, monitoring server resources, or checking database connections? Explain your strategy for isolating the fault.** What methods would you employ to narrow down the potential causes of the malfunction, such as bisecting the code, using debugging tools, or performing hypothesis testing? Outline your approach to resolving the issue.** Once you have identified the root cause, what steps would you take to fix it quickly and effectively? How would you ensure that your fix does not introduce new problems? Discuss how you would prevent similar malfunctions from occurring in the future.** What proactive measures would you implement to improve the platform's reliability and resilience, such as adding better logging, implementing automated testing, or improving monitoring? Walk me through your thought process and provide specific examples of how you would tackle each step of the debugging process. I'm interested in hearing about your experience with similar situations and how you have successfully resolved them in the past.

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