Atom Technologies interview experience Real time questions & tips from candidates to crack your interview
Software Engineer
Atom Technologies
2 rounds | 5 Coding
problems
Selected Interview preparation journey
Journey
I have got the interview opportunity as I was continuously cold mailing on LinkedIn for referrals. I got response from the company and got this interview. Also, I was regularly practicing DSA and solving leetcode .
Application story
I received the mail for my interview from the recruitment and they got my refrence from the Linkedin and after my first round their was one more round (both technical)
Why selected/rejected for the role?
I got selected for this role as i have relevant projects and skill set required for the job role and for problem solving i have solved DSA question asked in the interview.
Preparation
Duration: 4 months
Topics: Data Structures. OOPS, OS , Algorithms(Searching & Sorting), DBMS
Tip 1: Do DSA regularly and try to cover all the topics.
Tip 2: Prepare the core subjects like DBMS, and OS.
Application process
Where: Linkedin
Eligibility: 7 CGPA
Tip 1:Resume should be of One page with simple template
Tip 2:Mention atleast two projects
Interview rounds
01
Round
Medium
Face to Face
Duration60
Interview date28 Dec 2023
Coding problem2
1. Authentication using JWT Tokens
How did you implement authentication in the project (using JWT Tokens)? (Link)
2. Sort linked list which is already sorted on absolute values
Moderate
20m average time
80% success
0/80
Asked in companies
Given a linked list that is sorted based on absolute values. Sort the list based on actual values.
Examples:
Input : 1 -> -10
output: -10 -> 1
Input : 1 -> -2 -> -3 -> 4 -> -5
output: -5 -> -3 -> -2 -> 1 -> 4
Problem approach
Step 1: I first thought of the brute-force approach, but it was too lengthy.
Step 2: Then the interviewer provided me with a hint by emphasizing that it is sorted on absolute values.
Step 3: Then I figured out the approach; I had to traverse the linked list, and whenever a negative node appeared, I just added it to the head of the linked list.
02
Round
Easy
Face to Face
Duration40
Interview date31 Dec 2023
Coding problem3
1. Implementing BST search with level return in code
Easy
15m average time
85% success
0/40
Asked in companies
Write a code to search an element in a BST(Binary search tree) and also return its level.
Problem approach
Step 1: As it was an easy problem, I directly used recursion to search for the elements on the left and right of the tree by comparing the elements.
Step 2: Also, I passed a variable (Level) which I incremented on every recursive call.
2. ACID Properties
What is ACID Properties? Explain with an example.(Link)
3. Normalization
What is normalization?(Link)
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 the purpose of the return keyword?
Choose another skill to practice
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