I applied online. The process took 2 weeks. I interviewed at OnlineSales.ai (Pune) in Aug 2021
Interview
Consisted of 4 rounds
1 round: Technical round solely based on the coding question of 30 minutes.
2 round: Technical round based on coding questions and few technical terms
3 round: Technical round based on coding questions and DMBS queries.
4 round: Bar Raiser with the head of engineering
Interview questions [4]
Question 1
Round 1: 2 coding question:
1. count no. of 2 in an array without using == operator
2. Find the equilibrium point in an array expected TC:
O(N)
Round 2:
1 question:
A real-life problem, not standard DSA based,
had to open a file and do some operation on file and save the output in a file, can't explain the question but had to use a map of string and its occurrence in the whole file.
Round 3:
1. Shipping container problem: variation of painter partition, split array sum problem. Needed to use Binary Search
2. Given an array of the prime number containing one prime number which occurs more than one .find that prime number expected TC:O(N) SC:O(1)
3. A SQL based query had to used joins on three tables.
The interviewer was kind enough he gave me hints to solve it.
4 Bar Raiser:
This was with the head of engineering, had one design question which was to design an activity logger service that logs the comments for trading app ex: Zerodha, Groww.
It was more like a discussion.
After 2days got the confirmation.
I applied in-person. The process took 1 week. I interviewed at OnlineSales.ai in Dec 2024
Interview
The interview process consisted of five rounds. The first round was a screening round where I was asked basic questions, such as SQL queries and fundamental data structures and algorithms. This round also included a coding assignment, where I was given a question resembling an LRU cache problem (though not exactly the same).
In the second round, I faced coding challenges. It started with a debugging question, followed by two additional DSA questions.
The third round focused on design, including API and database design. I was asked to design a URL shortener and a distributed cache. While I answered the questions to the best of my ability, I felt the expectations were misaligned with my experience level, as I only had one year of professional experience, yet the interviewer expected knowledge equivalent to someone with seven years of experience.
Unfortunately, my overall experience with the interview process was disappointing. Apart from the second round, the interviews were poorly managed. The interviewer for the system design round didn’t even turn on their camera, and their knowledge seemed limited. This lack of professionalism left a negative impression on me, and I would not recommend applying to this company.
I applied through an employee referral. I interviewed at OnlineSales.ai (Pune) in Jun 2023
Interview
"I advise against participating in the interview process at this company. The interview consists of five rounds: Online assessment DSA (Data Structures and Algorithms) DSA (Data Structures and Algorithms) API + DB design (Application Programming Interface and Database Design) Bar Raiser and cultural fit If you're willing to invest one month of your life, then you might consider attending this company's interview process. The DSA rounds were relatively standard. However, in the API + DB design round, they expect candidates to possess the same level of knowledge as the interviewer. Unfortunately, it seems the interviewers are more focused on displaying their own expertise rather than evaluating your skills and capabilities. They tend to ask questions without providing adequate time for thoughtful responses. Most interviewers seem to have around seven years of experience exclusively within this company. This could indicate that they might not have the skills to succeed in other, more competitive companies and are looking for candidates with a similar level of knowledge. I am doubtful that the company genuinely invests in candidates. Moreover, I discovered numerous reviews on Glassdoor echoing concerns about unhelpful and arrogant senior staff who seem more interested in showcasing their own knowledge. Regrettably, I found these issues to be true during the interview process itself."
