Mobcoder interview experience Real time questions & tips from candidates to crack your interview
SDE - 2
Mobcoder
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Journey
As the interview part they have very smooth on boarding process . They have 3 rounds of interview out of which two were Technical and one is Managerial / Behavioural round.
I have been working at Mobcoder from last 11 months, It is a brilliant journey till now the work culture is definitely you wouldn't find even in some of the biggest companies out there.
Application story
I saw a job opening on Naukri.com applied to it and received a call within few days, schedule interview according to my availability.
Why selected/rejected for the role?
Interviewer was happy with my problem solving skills and my Javascript and React concepts were clear.
Preparation
Duration: 5 months
Topics: Data Structures & Algorithms, ReactJs, Javascript, NodeJs, OOPS, MongoDB
Tip 1 : Focus on Data Structure and Algorithms (Prefer quality questions than quantity of questions) Atleast 2 questions everyday.
Tip 2 : Be Fluent in Javascript, As it will open a lot of doors for your career options
Tip 3 : Chose a right tech stack(mine is ReactJs, NodeJs, ExpressJs, MongoDB), because all the work you do in future will depend on it. Try to make atleast 2 Projects of your own it will help interviewee to check you grasp on tech stack.
Application process
Where: Naukri
Eligibility: Graduated with good marks and good in technology
Tip 1: Have atleast 2 projects on your resume
Tip 2: All working experience details should be short and crisp.
Interview rounds
01
Round
Easy
Video Call
Duration65 mins
Interview date25 Apr 2022
Coding problem1
1. Check If Linked List Is Palindrome
Easy
15m average time
85% success
0/40
Asked in companies
You are given a Singly Linked List of integers. You have to return true if the linked list is palindrome, else return false.
A Linked List is a palindrome if it reads the same from left to right and from right to left.
Example:
The lists (1 -> 2 -> 1), (3 -> 4 -> 4-> 3), and (1) are palindromes, while the lists (1 -> 2 -> 3) and (3 -> 4) are not.
Problem approach
Copy the linked list in array then using two pointers check it for palindrome.
next optimisation is
using slow pointer and fast pointer reverse the second half of the linked list then traverse from last to middle and start to middle check for palindrome.
02
Round
Easy
Video Call
Duration60 mins
Interview date26 Apr 2023
Coding problem1
1. Zig-Zag of Matrix
Hard
40m average time
60% success
0/120
Asked in companies
You are given a matrix ‘mat’ of ‘N’ rows and ‘M’ columns. Your task is to return the Zig-Zag order of the matrix.
The Zig-Zag order of a 5 x 5 matrix is given below
For example:
You are a given the matrix -:
‘mat’ = [[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]
Here the Zig-Zag order of the given matrix is [1, 2, 4, 7, 5, 3, 6, 8, 9]. Hence the answer is [1, 2, 4, 7, 5, 3, 6, 8, 9].
Problem approach
Use a loop to iterate through each row of the matrix.
For each row, use another loop to iterate through each column of the matrix.
Determine whether the current row and column position should be printed normally or in reverse order, based on whether the row and column indices are odd or even.
Print the value at the current row and column position, using a space or other delimiter to separate it from the next value.
Repeat this process for all rows and columns of the matrix, until the entire matrix has been printed in jigjag format.
03
Round
Easy
HR Round
Duration40 mins
Interview date28 Apr 2023
Coding problem1
1. Basic HR Questions
Behavioural questions
Problem approach
Tip 1: Stay positive
Tip 2: Try to give positive answers only
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
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