About quantech
quantech Interview Questions and Answers
Updated 21 Feb 2026Quality Assurance Engineer Interview Experience
Candidate: Emily Zhang
Experience Level: Entry-level
Applied Via: Online Application
Difficulty:
Final Result: Rejected
Interview Process
3
Questions Asked
- What is the difference between black-box and white-box testing?
- Write test cases for a login feature.
- How do you handle bug tracking and reporting?
Advice
Practice writing detailed test cases and familiarize yourself with common QA tools.
Full Experience
After applying online, I had a phone screen, a technical test, and a final interview with the QA team. The technical test was challenging and required writing test cases and identifying bugs in sample code. Although I was not selected, the interviewers provided helpful feedback.
Business Analyst Interview Experience
Candidate: David Kim
Experience Level: Mid-level
Applied Via: Job Fair
Difficulty: Easy
Final Result:
Interview Process
2
Questions Asked
- Explain how you gather requirements from stakeholders.
- Describe a time you improved a business process.
- What tools do you use for data analysis?
Advice
Be clear and concise in your communication and provide examples of your analytical skills.
Full Experience
I met a company representative at a job fair and submitted my resume. The first round was a phone interview focusing on my experience and skills. The second was a video interview with scenario-based questions. The interviewers were supportive and the process was straightforward.
Product Manager Interview Experience
Candidate: Catherine Smith
Experience Level: Senior
Applied Via: Recruiter Contact
Difficulty:
Final Result:
Interview Process
3
Questions Asked
- How do you prioritize features in a product roadmap?
- Describe a time you managed conflicting stakeholder interests.
- How do you measure product success?
Advice
Prepare real-world examples demonstrating leadership and decision-making skills.
Full Experience
A recruiter reached out to me and after an initial phone screening, I had two rounds of interviews focusing on product strategy and behavioral questions. The interviewers were interested in my experience managing cross-functional teams. The process was professional and timely.
Data Scientist Interview Experience
Candidate: Brian Lee
Experience Level: Entry-level
Applied Via: Referral
Difficulty: Hard
Final Result: Rejected
Interview Process
4
Questions Asked
- Explain the bias-variance tradeoff.
- How would you handle missing data in a dataset?
- Implement a logistic regression from scratch.
- Describe a machine learning project you worked on.
Advice
Gain more hands-on experience with machine learning projects and practice coding implementations.
Full Experience
I was referred by a friend and had four rounds: a phone screen, a technical coding test, a machine learning case study presentation, and a final HR interview. The technical rounds were challenging and required deep understanding of ML concepts. Unfortunately, I was not selected but received constructive feedback.
Software Engineer Interview Experience
Candidate: Alice Johnson
Experience Level: Mid-level
Applied Via: Online Application
Difficulty:
Final Result:
Interview Process
3
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 previous project.
Advice
Brush up on data structures and algorithms, and be prepared to discuss past projects in detail.
Full Experience
I applied online and was contacted within a week. The first round was a phone screen focusing on my resume and basic coding questions. The second round was a technical interview with coding problems and system design. The final round was a cultural fit interview with the team lead. The process was smooth and the interviewers were friendly.
Frequently Asked Questions in quantech
Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.
Common Interview Questions in quantech
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: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.
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: 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: There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can't change them. Identify each switch with its bulb.
Q: Every day a cyclist meets a train at a particular crossing .The road is straight before the crossing and both are travelling in the same direction.Cyclist travels with a speed of 10 kmph.One day the cyclist come late by 25 minutes and meets the train 5 km before the crossing.What is the speed of the train?
Q: A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete
Q: A vessel is full of liquid. From the vessel, 1/3rd of the liquid evaporates on the first day. On the second day 3/4th of the remaining liquid evaporates. What fraction of the volume is present at the end of the second day
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
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: There are four dogs/ants/people at four corners of a square of unit distance. At the same instant all of them start running with unit speed towards the person on their clockwise direction and will always run towards that target. How long does it take for them to meet and where?
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: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
Q: An escalator is descending at constant speed. A walks down and takes 50 steps to reach the bottom. B runs down and takes 90 steps in the same time as A takes 10 steps. How many steps are visible when the escalator is not operating.Â
Q: There are some chickens in a poultry. They are fed with corn. One sack of corn will come for 9 days. The farmer decides to sell some chickens and wanted to hold 12 chicken with him. He cuts the feed by 10% and sack of corn comes for 30...
Q: In mathematics country 1,2,3,4....,8,9 are nine cities. Cities which form a no. that is divisible by 3 are connected by air planes. (e.g. cities 1 & 2 form no. 12 which divisible by 3 then 1 is connected to city 2). Find the total no. of ways you can go to 8 if you are allowed to break the journeys.
Q: Four persons have to cross the bridge they are having one torch light. Four persons take 1,2,5,10 minutes respectively, when two persons are going they will take the time of the slowest person. What is the time taken to cross by all of them.
Q: There are 4 cars . They all are coming from different directions. They have to cross through one square.They all arrive at the same time. Nobody stops . still there is no clash .note : They all are driving at a speed if 100 km/hr.