IBM interview experience Real time questions & tips from candidates to crack your interview
Associate System Engineer
IBM
3 rounds | 5 Coding
problems
Selected Interview preparation journey
Journey
In the technical interview round, firstly I was asked to explain about my college major project and based on that technical questions were asked. Supposedly my college major project was based on AI & ML. So, basics on AI & ML were asked also some case studies were given based on my project, which I had to solve.
Lastly they had given a coding question which I needed to solve instantly and explain the algorithm.
Application story
Our College placement cell had informed us about IBM's recruitment then Firstly there's a IBM recruitment portal where we had to create our profile and fill the application form provided by IBM in the portal. Our application was considered then further exam details was informed in the registered email.
Why selected/rejected for the role?
In my resume I had mentioned all my technical skills and my previous internship experiences highlighting the keywords as per job role requirements for which I had applied.
Preparation
Duration: 5months
Topics: Data Structure, OOPS, Algorithms, Data Science, Machine Learning
Tip 1 : Competitive coding atleast in 1 or more language should be mastered.
Tip 2 : Detailed knowledge of Major Project
Tip 3 : Clear knowledge of Theoritical questions from each topic is necessary for interview
Application process
Where: Campus
Eligibility: 6 CGPA above
Tip 1: Technical skills and internship experience count a lot
Tip 2: Atleast 1 project should be mentioned in the resume
Interview rounds
01
Round
Medium
Online Coding Interview
Duration100 minutes
Interview date6 Oct 2021
Coding problem3
The test was held in an afternoon
The environment was proctored
There were 72 questions in total
10 for English
50 for Apti
6 for coding
6 for gaming
1. Binary to Decimal
Easy
15m average time
80% success
0/40
Asked in companies
Ninja is given a binary number as a string ‘S’ of size ‘N’, he is asked to convert it into its decimal equivalent (as an Integer) and print it.
Note:
A binary string is a string in which all characters are either ‘1’ or ‘0’.
2. Reverse vowels in a string
Easy
15m average time
85% success
0/40
Asked in companies
You are given a string 'S'. Your task is to reverse the vowels in the string while keeping the consonants unchanged.
Note:
The alphabets 'a', 'e', 'i', 'o', and 'u' are vowels, while all the remaining alphabets are consonants.
Problem approach
Step1:- I first traversed through sentence
Step2:- If character is not a,e,i,o,u r store character in new string else ignore.
3. Check If The String Is A Palindrome
Easy
10m average time
90% success
0/40
Asked in companies
You are given a string 'S'. Your task is to check whether the string is palindrome or not. For checking palindrome, consider alphabets and numbers only and ignore the symbols and whitespaces.
Note :
String 'S' is NOT case sensitive.
Example :
Let S = “c1 O$d@eeD o1c”.
If we ignore the special characters, whitespaces and convert all uppercase letters to lowercase, we get S = “c1odeedo1c”, which is a palindrome. Hence, the given string is also a palindrome.
Problem approach
Step1:- First we have to get the length of input string.
Step2:- Then I did the following while low index ‘l’ is smaller than high index ‘h’ where l is initialised to 0 and high to n-1
If str[l] is not same as str[h], then return false.
Increment l and decrement h, i.e., do l++ and h–.
Step3:- If all character match, return true.
02
Round
Medium
Coding Test - Pen and paper
Duration45 minutes
Interview date12 Oct 2021
Coding problem1
It was a gaming round
1. Puzzle
Random puzzle games were given which we had to solve with concentration
Problem approach
Tip 1: Reading the game question carefully
Tip 2: Working on it with concentration
Tip 3: Taking care of time
03
Round
Medium
HR Round
Duration30minutes
Interview date14 Nov 2020
Coding problem1
1. Basic HR Questions
Questions were asked based on major Project as mentioned earlier from ML . 1 coding question was asked
Problem approach
Tip 1: Answering the questions based on the logic used in Project
Tip 2: Trying to answer maximum no. Of question with confidence
Tip 3: Elaborating answers for every question
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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