SoC Power Modeling Engineer

Apple

A leading technology company that designs and develops consumer electronics, software, and services.

Beaverton, OR, USA

Embedded

Mid-Level Software Engineer

In-Person

3+ years of experience

Description For SoC Power Modeling Engineer

Join Apple's Silicon Engineering group as a SoC Power Modeling Engineer, where you'll be at the forefront of designing state-of-the-art ASICs integral to many Apple products. This role focuses on modeling power dissipation of various IPs, including AI/ML components, power rails, peak current requirements, and voltage-frequency operating points for next-generation Apple SOCs. You'll collaborate across multiple teams including architecture, design, thermals, PMIC, and system design to optimize power efficiency in leading-edge chips. The position offers unique opportunities to work with hardworking engineers on HW/model correlation efforts of mobile SoC design. You'll be responsible for establishing voltage-frequency design points, modeling power dissipation for customer use-cases, and working closely with lab teams for hardware correlation. This role is perfect for someone passionate about power optimization in silicon design and eager to contribute to innovative products used by millions of customers worldwide. The position combines technical expertise with cross-functional collaboration, making it an exciting opportunity for those interested in advanced chip design and power efficiency optimization.

Last updated 7 days ago

Responsibilities For SoC Power Modeling Engineer

Modeling power dissipation and power delivery
Establishing voltages for DVFM states of IPs, including Neural Engines, CPUs, Graphics, compute (AI/ML) accelerators, media IPs, caches and fabric
Modeling power dissipation for customer use-cases
Interacting with Technology team, Silicon Validation, and Product Engineering teams to establish voltage-frequency design points
Working with power lab and test teams to correlate models to HW data

Requirements For SoC Power Modeling Engineer

Bachelor's degree in relevant field
Understanding of SOC power modeling and current demand
Understanding of electrical properties of on-die PDN, power gating, package and system power delivery
Skills in scripting, data analysis and experience with EDA tools
Understanding of VLSI design flow and CMOS technology
Extensive background in EE
Ability to understand and model thermal control loops and throttling mechanisms
Familiarity with physical design tools for power optimization
Great teammate and excellent communication skills

Apple

A leading technology company that designs and develops consumer electronics, software, and services.

Beaverton, OR, USA

Embedded

Mid-Level Software Engineer

In-Person

3+ years of experience

Apple

Different Ways to Add Parentheses

Data Structures & AlgorithmsMedium

Given a string expression of numbers and operators, return all possible results from computing all the different possible ways to group numbers and operators. You may return the answer in any order. The test cases are generated such that the output values fit in a 32-bit integer and the number of different results does not exceed 104. For example: If the input is expression = 2-1-1 The expected output is [0,2] Because: ((2-1)-1) = 0 (2-(1-1)) = 2 If the input is expression = 23-45 The expected output is [-34,-14,-10,-10,10] Because: (2(3-(45))) = -34 ((23)-(45)) = -14 ((2(3-4))5) = -10 (2((3-4)5)) = -10 (((23)-4)5) = 10 Constraints: 1 <= expression.length <= 20 expression consists of digits and the operator '+', '-', and '*'. All the integer values in the input expression are in the range [0, 99]. The integer values in the input expression do not have a leading '-' or '+' denoting the sign.

Recursion

Dynamic Programming

Apple

Design API endpoint to fetch 'coming soon' show content.

System DesignHard

Design an API endpoint to fetch 'coming soon' show content. Consider factors like data structure, filtering, and sorting.

Arrays

Strings

Database Problems

Greedy Algorithms

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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