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Embedded Software Engineer Interview Questions

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Embedded Software Engineer Interview Questions

Embedded software engineers ontwikkelen en onderhouden embedded systemen. Hiervoor zijn vaak geavanceerde softwarevaardigheden en een probleemoplossend vermogen voor nodig. In een sollicitatiegesprek voor embedded software engineer kan de vragensteller vragen stellen die uw vaardigheden en ervaring op het vlak van coderen toetsen. Verwacht ook vragen over hoe u samenwerkt met anderen, omdat de functie mogelijk binnen een team valt.

Meest gestelde sollicitatievragen voor een embedded software engineer (M/V/X) en hoe te antwoorden

Question 1

Vraag 1: Definieer een embedded systeem.

How to answer
Zo antwoordt u: Bewijs uw competentie door een beknopt maar grondig antwoord te geven. Leg uit dat een embedded systeem een computer is die leeft binnen een grotere machine en op een unieke manier werkt om een bepaalde taak uit te voeren. Denk aan het geven van een aantal voorbeelden, zoals een auto, een keukenmachine of een MP3-speler.
Question 2

Vraag 2: Welke programmeertalen kunt u gebruiken?

How to answer
Zo antwoordt u: Embedded software engineers zijn verantwoordelijk voor het bouwen van complexe functionele systemen. Het is dus gunstig om uw technische vaardigheden te benadrukken. De vragensteller wil misschien dat u basis programmeertalen noemt zoals C en C++. U kunt aangeven aan welke talen u de voorkeur geeft of waarin u meer ervaring wilt opdoen. Hiermee toont u passie en een doorlopende bereidheid om te leren.
Question 3

Vraag 3: Hebt u samengewerkt met engineers en ontwerpers?

How to answer
Zo antwoordt u: U moet mogelijk samenwerken met anderen aan een gemeenschappelijk doel, teamwerk is dus essentieel. U kunt een anekdote delen over een situatie waarin u succesvol samenwerkte om een probleem met een product op te lossen. Richt u op uw vermogen om om te gaan met stress, duidelijk complexe kwesties te communiceren en te luisteren naar anderen.

6,867 embedded software engineer interview questions shared by candidates

Valeo interview experience Part one : 1­ The interviewer and the interviewee introduce themselves ­I mentioned in the cv the knowledge of MISRA C and git/github, and I was asked what I know about them 2­ You are requested to talk about a project that you're comfortable with and through it, You will get to explain the main embedded systems concepts like (adc ­ pwm ­serial communications... etc ) *I explained the concepts in details using illustrations and equations ... No code was required, only how each component was configured. 3­ I was asked directly what do you know about " Data Structures " Then, I was asked to simply construct a linked list that contains the elements 1,2,3 Then, I was asked to make a linked list in an unconventional way of not using dynamic allocation or arrays 4­ I was asked to make a "complete executable program" which is a simple compression algorithm that accepts an array of 8 bytes erase the MSB and concatenate the bytes so at the end instead of having 8 bytes you will have 7 bytes Through out discussing the program, I was asked about the scope of the memory in a program where the variables are kept ... etc I was asked about the startup code and bootloaders Can I edit the memory locations ? Return by value and return by reference. Why always the array is sent as a pointer and not by its value? Part Two: At the end I asked about some carrier guidance tips : What microcontrollers are currently used in the industry and would knowing various versions of the same processor is important like for example knowing different arm versions (tiva C and stm32 for example) ? ­Currently, The industry use 8bit (which have the challenge of writing codes for small resources ), and 32bits and not the 16bit ones as their costs is too close to the 32 ones but of course the 8bits are still very cheap compared to the 32bits so they are still in use ­knowing different versions of microcontrollers is not important (...I believe bcz companies use AUTOSAR ??!) Is embedded linux used in the industry !? ­Embedded linux cannot be used widely in the automotive industry, As it doesn't “directly” support real time response (and I was asked to search on why :D), but is used in interfacing the screens. Further, I was advised to deeply study operating systems mainly “RTOS” and data structures. Review : Embedded systems interviews are all the same, in focusing on the same topics, solve several related questions and practice on an IDE.
avatar

Embedded Software Engineer

Interviewed at Valeo

3.7★
Feb 7, 2018

Valeo interview experience Part one : 1­ The interviewer and the interviewee introduce themselves ­I mentioned in the cv the knowledge of MISRA C and git/github, and I was asked what I know about them 2­ You are requested to talk about a project that you're comfortable with and through it, You will get to explain the main embedded systems concepts like (adc ­ pwm ­serial communications... etc ) *I explained the concepts in details using illustrations and equations ... No code was required, only how each component was configured. 3­ I was asked directly what do you know about " Data Structures " Then, I was asked to simply construct a linked list that contains the elements 1,2,3 Then, I was asked to make a linked list in an unconventional way of not using dynamic allocation or arrays 4­ I was asked to make a "complete executable program" which is a simple compression algorithm that accepts an array of 8 bytes erase the MSB and concatenate the bytes so at the end instead of having 8 bytes you will have 7 bytes Through out discussing the program, I was asked about the scope of the memory in a program where the variables are kept ... etc I was asked about the startup code and bootloaders Can I edit the memory locations ? Return by value and return by reference. Why always the array is sent as a pointer and not by its value? Part Two: At the end I asked about some carrier guidance tips : What microcontrollers are currently used in the industry and would knowing various versions of the same processor is important like for example knowing different arm versions (tiva C and stm32 for example) ? ­Currently, The industry use 8bit (which have the challenge of writing codes for small resources ), and 32bits and not the 16bit ones as their costs is too close to the 32 ones but of course the 8bits are still very cheap compared to the 32bits so they are still in use ­knowing different versions of microcontrollers is not important (...I believe bcz companies use AUTOSAR ??!) Is embedded linux used in the industry !? ­Embedded linux cannot be used widely in the automotive industry, As it doesn't “directly” support real time response (and I was asked to search on why :D), but is used in interfacing the screens. Further, I was advised to deeply study operating systems mainly “RTOS” and data structures. Review : Embedded systems interviews are all the same, in focusing on the same topics, solve several related questions and practice on an IDE.

• What is Cache? Explain the basics of it and how does it work at hardware level. • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What is Cache? How does it work? • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What does r14 register do? • What is context switch and how does it happen? • Explain the usage of Volatile keyword. • Explain the usage of Extern keyword • Explain the usage of Static keyword with examples • What happens if a variable has both extern and static keyword? • What is DMA? • What is MMU? • What is Mutex? What is semaphore? What is the difference between semaphore and a mutex? and few more questions
avatar

Embedded Software Intern

Interviewed at Arm

4.5★
Sep 10, 2020

• What is Cache? Explain the basics of it and how does it work at hardware level. • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What is Cache? How does it work? • Explain cache mapping • Explain cache coherence • What is interrupt? And what does the CPU do when an interrupt occurs? • Explain registers in Arm cortex processor • What does r14 register do? • What is context switch and how does it happen? • Explain the usage of Volatile keyword. • Explain the usage of Extern keyword • Explain the usage of Static keyword with examples • What happens if a variable has both extern and static keyword? • What is DMA? • What is MMU? • What is Mutex? What is semaphore? What is the difference between semaphore and a mutex? and few more questions

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