Infosys Engineering Services embedded interview prep

Roles they hire for

• Embedded systems engineer
• Embedded test engineer

What they emphasise

• Engineering services and product engineering
• Embedded Linux and device work
• Test automation

Brush up on

Embedded CLinuxPythonCAN basicsTest automation

How the rounds usually run

A typical engineering services loop for embedded roles. Companies vary by team and seniority.

Online test

• Aptitude and reasoning
• C programming, electronics and OS basics

Example: What does sizeof return for a struct with a char, an int and a char, and why?

Technical 1: C and fundamentals

• Pointers, memory, data structures in C
• Your projects and the tools you used

Example: Reverse a singly linked list in place.

Technical 2: Domain for the project

• Depends on the project: AUTOSAR, Linux drivers, RTOS or protocols
• Scenario questions from real client work

Example: Explain how you'd add a new peripheral driver in the stack you know best.

Client interview (for project roles)

• The client's own technical screen for their programme
• Communication and ownership

Example: Explain your last module's design to someone who didn't build it.

HR

• Notice period, location and compensation

Example: Are you open to onsite assignments?

Practice questions

Original questions written for Infosys Engineering Services's focus areas, not leaked ones.

1. Explain pointers to pointers with an embedded example.
2. Write a function to check if a string is a palindrome without extra memory.
3. How would you automate testing of a device's serial command interface?
4. What is the difference between a process and a thread on Linux?
5. Walk through how you'd debug a crash in code you didn't write.

Your prep playlist

Design rounds to practise

Themes are inferred from Infosys Engineering Services's public product lines.