About HiLabs
HiLabs Interview Questions and Answers
Updated 21 Feb 2026DevOps Engineer Interview Experience
Candidate: Emma R.
Experience Level: Senior
Applied Via: Company career fair
Difficulty: Hard
Final Result:
Interview Process
3 rounds
Questions Asked
- Explain CI/CD pipelines and tools you've used.
- How do you troubleshoot a failing deployment?
- Describe your experience with cloud infrastructure management.
Advice
Be prepared for scenario-based questions and hands-on technical tests.
Full Experience
After an initial HR screening, I had a technical interview with practical problem-solving questions, followed by a final round with senior engineers. Although I received an offer, I decided to pursue another opportunity.
UX Designer Interview Experience
Candidate: David L.
Experience Level: Mid-level
Applied Via: Recruiter outreach
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- Walk us through your design portfolio.
- How do you incorporate user feedback into your designs?
- Describe a time you disagreed with a stakeholder and how you handled it.
Advice
Prepare a strong portfolio and be ready to discuss your design decisions.
Full Experience
The interview process included a portfolio review, a practical design challenge, and a final cultural fit interview. The team was friendly and encouraged open discussion.
Product Manager Interview Experience
Candidate: Chloe S.
Experience Level: Entry-level
Applied Via: LinkedIn job post
Difficulty:
Final Result:
Interview Process
2 rounds
Questions Asked
- How do you prioritize features in a product roadmap?
- Describe a time you managed a project under tight deadlines.
Advice
Focus on demonstrating communication skills and understanding of product lifecycle.
Full Experience
The first round was a video interview with HR focusing on my background and motivation. The second round was with the product team, discussing scenarios and my approach to product challenges.
Data Scientist Interview Experience
Candidate: Brian K.
Experience Level: Senior
Applied Via: Referral from current employee
Difficulty: Hard
Final Result:
Interview Process
4 rounds
Questions Asked
- Explain how you would handle missing data in a dataset.
- Describe a machine learning project you led.
- Write SQL queries to extract data from multiple tables.
- How do you evaluate the performance of a classification model?
Advice
Prepare for both technical and case study questions; practice explaining complex concepts clearly.
Full Experience
The process started with an HR screening, followed by a technical phone interview, then a case study presentation, and finally an onsite interview with the data science team. The case study was particularly challenging and required quick thinking.
Software Engineer Interview Experience
Candidate: Alice M.
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- Explain the difference between REST and SOAP APIs.
- Write a function to reverse a linked list.
- Describe a challenging bug you fixed in a past project.
Advice
Brush up on data structures and be ready to discuss past projects in detail.
Full Experience
The first round was a phone screening focusing on my resume and basic coding questions. The second was a technical interview with a live coding exercise. The final round was with the team lead and included behavioral questions and system design.
Frequently Asked Questions in HiLabs
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Common Interview Questions in HiLabs
Q: In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?
Q: A man has a wolf, a goat, and a cabbage. He must cross a river with the two animals and the cabbage. There is a small rowing-boat, in which he can take only one thing with him at a time. If, however, the wolf and the goat are left alone, the wolf will eat the goat. If the goat and the cabbage are left alone, the goat will eat the cabbage. How can the man get across the river with the two animals and the cabbage?
Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Q: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
Q: Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on.
Q: 9 cards are there. You have to arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
Q: A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: 3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thieves and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?
Q: T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.
Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: Jarius and Kylar are playing the game. If Jarius wins, then he wins twice as many games as Kylar. If Jarius loses, then Kylar wins as the same number of games that Jarius wins. How many do Jarius and Kylar play before this match?
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.
Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...
Q: If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?
Q: In a country where everyone wants a boy, each family continues having babies till they have a boy. After some time, what is the proportion of boys to girls in the country? (Assuming probability of having a boy or a girl is the same)