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ROITI interview questions
based on 3 ratings - Updated Dec 16, 2025
Averageinterview difficulty
Mixedinterview experience
How others got an interview
50%
Other
Other
50%
Applied online
Applied online
Interview search
3 interviews
ROITI interviews FAQs
Glassdoor users rated their interview experience at ROITI as 50% positive with a difficulty rating score of 3 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Junior ERTM Dev. and Data Engineer rated their interviews as the hardest, whereas interviews for Junior ERTM Dev. and Data Engineer roles were rated as the easiest.
The hiring process at ROITI takes an average of 8 days when considering 2 user submitted interviews across all job titles. To compare, the average duration of hiring at similar companies like BlackRock, Inc. is 14 days, Fabricated Software, Inc. is 2 days, and Apple Inc. is 21 days. Candidates applying for Data Engineer had the quickest hiring process (on average 2 days), whereas Junior ERTM Dev. roles had the slowest hiring process (on average 14 days).
They had an assessment to be submitted pre hand and the interview went over general past experiences and what type of problem solver are you,
It was held with the team managers and senior analyst
Interview questions [1]
Question 1
If you are a given a task and you have no idea how to go about it how would you approach it?
I applied online. The process took 2 weeks. I interviewed at ROITI in Nov 2024
Interview
I had 5 tasks, leet code challenge, this alone made me feel like I don't want really to bother with it since I have worked in Denmark and have a recommendation letter, this just made me feel like they are mocking me and my previous experience, the interview was easy but lengthy and useless. One of the interviewers joined from his car. Really unprofessional. I'd accept if he was late for the meeting if he just rescheduled it. It feels like waste of time.
I applied through other source. The process took 2 days. I interviewed at ROITI (Sofia, Sofia (city)) in Apr 2021
Interview
Interview required knowledge of Numpy, Pandas and SQL, as well as some basic data manipulation to transform data into a format suitable for subsequent tasks. Moreover, some basic Python programming skills were tested, such as implementing generator functions.