ElectrifAi Interview Questions, Process, and Tips

Round: Test
Experience: 20 objective and 5 subjective in 1 hour; based on probability, combinatorics and puzzle-based
Duration: 60 minutes minutes
Total Questions: 25

Round: Case study interview
Experience: One case – A retail chain (eg. Reliance Fresh, Spencer, etc) has identified a location for a new outlet. You are a hired consultant to help them decide if they should open the outlet or not. Then he asked me about my thoughts about the Opera placement screening test followed by a few questions on team management: What would you do if a specific person is trying to dominate and have his way in the team?, etc.

Round: GUESSTIMATE INTERVIEW
Experience: A guesstimate – Amount of water used in IIT Kanpur campus. 4 questions on probability ranging from simple to average. Eg: There are three doors. One goes straight to heaven, one goes to hell and sends you back after 1 day, and the last one goes to hell and sends you back after 2 days and the doors are shuffled randomly after you come back. What is the expected number of days until you reach heaven?

Round: gUESSTIMATE INTERVIEW
Experience: Guesstimate : if cars are to be stacked from New York to New Delhi, how many would be required?


College Name: IIT Kanpur

Interview preparation tips for other job seekers - Remote work although partially supported, is highly discouraged.

Interview preparation tips for other job seekers - Go through the job description thoroughly
Be punctual and adhere the timings and follow the interview process
Greet the interview panel members
Mapping of your skills, competency with job requirement
Read your resume
God knowledge of company, leadership team and core business etc.
Be patient, confident and do not panic
Exhibit good body language during interview
Ask question if any doubt
Take a pause before responding to question
Don't talk too much, allow interviewer to ask further question on your response, o
Observe facial expressions of the interviewer
Close interview by thanking note. Ask any question at the end if you have. Do not ask just for the sake of it.

Round: Resume Shortlist
Experience: Resumes of the interested students were sent to the company and then they shortlisted the students for the written round.
Tips: Your resume should be at most two pages long and should contain everything about you but it must be to the point. You must be thorough with every line that is written in your resume. It's just a basic criteria which is generally met by everybody.

Round: Test
Experience: The paper consisted of objective aptitude questions. The main area of focus should be probability and combinatorics since it requires more practice than the rest of the topics.
Tips: You should brush up your aptitude skills because every company that you sit in for has a section of it in the written or online test. You must not neglect it in any cost. Although the basic aptitude skill of every student is good, but what matters during the test is the speed and accuracy and that only comes with practice. The higher the marks you get in this section, the better are your chances to score higher than your fellow peers. Although the marks in the test are not the sole criteria for the result, but it does play an important role in your selection.
Duration: 1 hour 30 minutes
Total Questions: 45

Round: Guesstimate Interview
Experience: This was the first round of four interviews that I altogether faced. The above three questions were asked to me serially. But before that, I had been asked to give a brief introduction of me. I had solved all three of them. The first question didn't take much time. Since I am not that interested in solving puzzles, I took some time in solving the second question but eventually I did it. The third question is a guesstimate. I started solving it with the inputs being given by the interviewer and I moved closer and closer to a realistic range as per the data inputs that were given to me.
Tips: The practice that I did for aptitude helped me in solving the first question. That's why putting in a little effort in improving your aptitude skills will ultimately help you. The puzzle questions can be found on the internet and you just have to go through them once. After a while, you will be well acquainted with them and you won't face any problem in solving them. And for the guesstimate, the best option you have is Google. Surf the internet and you will get loads of them and how to approach them. They are the questions that are used to check how you approach a problem.

Round: Puzzle Interview
Experience: This was my second round in which I was asked only two question and both were puzzles. I could answer both but my approach in the second question was wrong first. The interviewer made me clear and then asked me to answer. After the questions, we had a conversation on my doubts regarding the work and the company.
Tips: The puzzles as I already said can be practiced from the internet. But the most important point is you need to clearly understand the question before answering them. The second question was a conventional one but with a twist, which actually checks how attentive you are. So you need to hear and understand the questions properly. In case you do not understand in the first go, ask your interviewer to pardon again.

Round: Case Study Interview
Experience: The third interview consisted of a simple probability question and a case study. The case was a Cement Company in India that was losing its market share and I had to describe the reasons considering the constraints were given to me.
Tips: You can easily get the examples of case study problems along with the ways of solving them, on the internet. The most important thing is you need to think out of the box of all the possibilities to analyze the case from an unconventional domain.

Round: HR Interview
Experience: This round was taken by two persons simultaneously. There was one puzzle asked and the rest of the interview went on with general HR questions and answers.
Tips: HR rounds are the easiest of all in the interviews of technical companies. You only need to prove what you say. There must be no contrast in what you speak and what you think at that point of time. At no instance of the interview you must contradict yourself.

College Name: NIT ALLAHABAD

Round: Resume Shortlist
Experience: There were 3 Job profiles open of opera solutions (Solution Analyst, Analytics Specialist, and Software Engineer). Students are asked to sign just for one profile. There was a test for analytics and software profile and direct interview for solution profile (Consultant profile).
Tips: Spend enough time before choosing the profiles. Spoke to senior who had a similar job and figure out your best suitable profile and prepare accordingly.

Round: Test
Experience: Opera solution conducts workshop for shortlisted candidates. In the workshop, they mostly tell about technical part behind big data management such as Mainframe and Hadoop. After the workshop, the test was conducted. The test had two sections, the first section contains objective questions around 20-25 (I did not remember the exact number). Objective questions were of aptitude type (moderate level of difficulty). The second section contains 5-6 subjective questions, mainly focus on probability again the moderate level of difficulty. 30 students were shortlisted for next round (interview round).
Tips: Start preparing as early you can. Practice problem daily does not wait for last few day. The main point of practice is to develop a habit of increasing accuracy and speed which is the crucial points of aptitude test.
For probability practice, there are online website and blogs you can take help from them. I have listed down some which are used. You should have some prior practice before setting for test otherwise, it would be difficult to do well in the test as some questions are tricky and difficult to solve in the first time.
For aptitude practice, you can refer TIME material, I think that is sufficient.

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Duration: 60 min minutes
Total Questions: 20+5

Round: Guesstimate Interview
Experience: The interviewer first goes through my resume and ask some basic question, not in depth. Then he asked me some puzzle (similar type of question asked in the subjective paper but with a high level of difficulty) and one guesstimate.
My interview last for 10-15 mins, the interviewer is very helpful and always try to calm and comfort me.
The interviewer gave me feedback and point out some area on which I can quickly look it for further interview.

Tips: I have assigned a buddy, IIT graduate having the same specialization. (Opera solutions follow buddy program similar of other consultant company). I personally found out buddy program very useful, you should contact your buddy or at least talk to him ones. The information you get from a buddy is very helpful of preparing for an interview. You get some aspect on which domain you need to work.

Round: Technical Interview
Experience: Next round was the telephonic interview with a senior analyst. The interviewer asked me some question from my resume especially on the technical project which involves some mathematics tool.
Then he asked some probability problems which are very tough.

Tips: The interviewer was interested in your approach only, how you’re tackling the problem. How much wide can you think? The interviewer is also ready to help you and try to figure out your strength. So be calm and speak with confidence.

Round: Stress Interview
Experience: The interviewer asked me some question from my resume in depth.
He asked one guesstimate and one probability question.

Round: Behavioural Interview
Experience: The interviewer started with questions like why this company, which other companies did I appeared for.
He asked me some quick calculation problems.

General Tips: Resume: Spend sufficient time on the resume as I was the initial step of shortlisting.
You be able to speak at any point in your resume in detail, hence you must be sure of what you are writing in it.

Puzzle: Practice Daily

Guesstimate: Practice with your sincere friends
Skills: Ability To Make Quick Calculations, Puzzle Solving Capability, Knowledge Of Your Resume Points, Guesstimation Cases, Probability And Statistics
College Name: IIT Bombay

Round: Test
Experience: The test had two parts, the first part consisted of 20 objective aptitude questions and the second part had 5 subjective questions, which were of moderate level of difficulty. 30 people were shortlisted for the final round of interviews.

Round: technical interview
Experience: The first interview was mostly related to my resume and the projects related to statistics that I had done during internships. He also asked me some questions related to regression analysis followed by a simple puzzle.

Round: Puzzle Interview
Experience: The second interviewer asked me two- three puzzles and then we had some discussion related to my interest in data science.

Round: case study interview
Experience: In third interview he asked me two puzzles followed by a case. The interviewer was very helpful and he only wanted to see my approach.


Round: technical interview
Experience: The final interview was a telephonic interview with a senior analyst. He asked me some questions on my internship projects. I was also asked a guess estimate problem.

General Tips: Do’s and Don’ts :

Concentrate on at most two sectors because it is very difficult to prepare for more than two sectors. Also, do not write anything which you are not sure about in your resume because you may feel that it would be helpful for getting shortlisted but considering that your resume would drive your interviews so it is very necessary that you are confident about the things in your resume. Placement Experience (write in different section for different companies)


Final Tips :
Start preparation as early as you can. Decide what kind of work you would like to do and then decide what sectors you want to prepare for. Be in touch with the seniors who are working in the firms that you are targeting. Their advice would be very helpful. Also do some mock interviews in wing or attend the workshops conducted by SPO.

College Name: IIT Kanpur

Round: Case Study Interview
Experience: When I reached the interview room of Opera, they informed me that they were impressed with my CV and I that had a good chance there.

Round: Puzzle Interview
Experience: It was based on puzzles and machine learning questions.They told me that I had almost made it, and only a final formality round with a person from US was remaining. Between those interviews I got a call from GE saying that they are done with all the remaining candidates and if I didn’t reach there in 10 minutes, they’ll pack up and leave. I had to make a tough decision between continuing with a company that I had a good chance at or go for a company that I didn’t wish to join. I politely told them that I am busy with other companies and hence I won’t be able to come.

Round: telephonic interview
Experience: I had the 4th and the final telephonic round with Opera towards the end of Slot1, which was to judge whether I was really interested in working at Opera.

College Name: IIT Kanpur

Round: Test
Experience: Objective had 15 questions in 30 minutes. Objective section was very easy.
Duration: 30 minutes minutes
Total Questions: 15

Round: Test
Experience: Subjective paper had 5 puzzles in 30 minutes. Subjective was good but not very tough. Thirty minutes were somehow not enough for five puzzles. I think they also considered resume while short listing.
Duration: 30 minutes minutes
Total Questions: 15

Round: Technical Interview
Experience: I was first asked about my resume, intern etc. followed by why not PhD. I was asked some simple puzzles from tech-interview.

Round: Case Study Interview
Experience: They asked me one case study. Then they asked me GS or opera. I told them it would be GS (I shouldn’t have told them about GS). Then they didn’t select me for second round.

College Name: IIT Kanpur

Round: Resume Shortlist
Experience: Didn't read any material saw resumes of my friends who pass out last year to see how to organize my points. Prepare my resume and refine it with the help of my friends several times

Round: HR Interview
Experience: One HR round

Round: Guesstimate Interview
Experience: One guesstimate interview

Round: Case Study Interview
Experience: Simpler case studies

Round: Technical Interview
Experience: Suppose you are a consultant and CEO of mahindra and MAhindra comes to you and ask if he can launch a airlines just as Vijay Malaya did.. What would you say .. (give proper reasons )
Tips: a) Prepare Case studies properly.b) Remember every point in your resume.. You should be in a position to explain clearly to a layman every project, andevery point in your resume..c) Don't lie on your resume.d) Try solving some puzzles for companies coming for finance or analytic job

College Name: IIT BOMBAY

Round: Resume Shortlist
Experience: With help from seniors resumes. I did not attend PPTs. I didn't think too much about the job, since it was a backup option for me.

Round: HR Interview
Experience: The McKinsey website. Individually, though I suppose preparing in groups will be better. Written test, follo wed by interviews of the shortlisted people. 12-13 poeople were recruited finally.

Skill Tips: A senior told me this, and it actually worked.. when you're done with the interview, a simple Thank You, have a nice day goes a long way.
College Name: IIT BOMBAY

Round: Resume Shortlist
Tips: Resume building is the most important of all steps. Keep it concise and to the point.

Round: Test
Experience: Puzzles
Tips: Practice as many puzzles as possible

Round: Stress Interview
Tips: Keep your cool, divert interview towards your strong zones

Round: Technical Interview
Experience: Guesstimates (basic level) and puzzles. Also know your resume and courses well

General Tips: They want to check your thinking, try every problem given in interview. They would have simple solutions.
Skills: Critical Thinking
College Name: IIT DELHI
Motivation: Application of statistics