I applied online. I interviewed at Lumel Technologies (Chennai) in Sept 2025
Interview
I attended the Lumel interview, which had four online rounds.
1st Round – Aptitude
The first round was an aptitude test.
2nd Round – Coding
Two coding problems were given:
Problem 1: Given an array of numbers from 0 to 10, find the missing number.
Problem 2: A word pattern problem, similar to LeetCode:
Example: pattern = "abba"
string = "dog cat cat dog"
Both questions were standard LeetCode-style problems.
3rd Round – Technical HR
In this round, they focused on:
JavaScript interview questions (top concepts)
React questions
HTML & CSS questions
One Sudoku program
One more coding problem (same as problems listed on interview experience websites)
Questions about my projects and resume
4th Round – HR
This was a general HR round with typical HR questions.
Other Product Developer interview reviews for Lumel Technologies
I applied online. The process took 3 weeks. I interviewed at Lumel Technologies (Chennai) in May 2024
Interview
1.Resume shortlist
2.Aptitude test(Usually they won't consider it everybody will be directed to next round)
3.Coding round(In their office)
-one Easy question
-one medium question
Everyone who cleared two questions will be directed for 1st technical round
4.Technical 1 they will ask basic programming question and ask to explain your code in the previous round and if there any possibilities for optimising it
They will ask to present your Full stack project and need to state that how did we do that project and will ask queries related to that.
5.Technical round 2
They started with one logical thinking question.
Then one difficult level program question
We just need to say the logic and they will notice our way of approaching the problem
Then they will ask to debug the python output.
Some DBMS related question and ask to solve some easy SQL queries .
6.HR round
Interview questions [1]
Question 1
Coding round
Easy question: In the string the unique characters should be decoded to '(' if there is duplicate decode into ')'
Medium question: If the number is less than 1000 print as it is ,if it's above or 1000 print as 5k,6k,55k and similarly for 5M,2.5M and 1b,2.4b etc...
