About ada
ada Interview Questions and Answers
Updated 21 Feb 2026AI Research Scientist Interview Experience
Candidate: Anita S.
Experience Level: Senior
Applied Via: Conference networking
Difficulty: Hard
Final Result:
Interview Process
5 rounds
Questions Asked
- Discuss recent advancements in natural language processing.
- How do you approach publishing research papers?
- Explain your experience with reinforcement learning.
- Coding challenge: Optimize a neural network training loop.
- Behavioral: How do you handle criticism of your research?
- Presentation: Present your recent research to the panel.
Advice
Be prepared to discuss your research in depth and present it clearly. Also, expect rigorous technical and behavioral questions.
Full Experience
I met a company representative at a conference and was encouraged to apply. The interview process was extensive, including multiple technical rounds and a presentation of my research. The team was highly knowledgeable and passionate about AI research, making the experience rewarding.
Software Engineer Interview Experience
Candidate: David M.
Experience Level: Mid-level
Applied Via: Recruiter outreach
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- Implement a function to reverse a linked list.
- Explain RESTful APIs and how you have used them.
- Describe a challenging bug you fixed.
- Behavioral: How do you handle tight deadlines?
- System design: Design a URL shortening service.
Advice
Prepare thoroughly for system design and coding interviews. Also, consider the company culture and role fit before accepting offers.
Full Experience
I was contacted by a recruiter and went through a coding test, a technical interview, and a system design interview. The process was challenging but fair. Although I received an offer, I decided to decline as I found another opportunity better aligned with my career goals.
Product Manager Interview Experience
Candidate: Sophia L.
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 cross-functional team.
- What metrics do you track for product success?
- Behavioral: Tell me about a challenge you faced and how you overcame it.
Advice
Focus on your communication skills and understanding of product lifecycle. Be ready with examples from internships or projects.
Full Experience
The interview process was straightforward with two rounds: a phone screen and an in-person interview. The interviewers were supportive and interested in my previous internship experience. I felt the company values learning and growth for entry-level candidates.
Data Scientist Interview Experience
Candidate: Jason K.
Experience Level: Senior
Applied Via: Referral
Difficulty: Hard
Final Result:
Interview Process
4 rounds
Questions Asked
- Explain A/B testing and how you would design an experiment.
- How do you handle missing data?
- Walk me through your experience with deep learning models.
- Case study: Analyze a dataset and provide insights.
- Behavioral: Describe a conflict you had with a team member and how you resolved it.
Advice
Prepare for case studies and be ready to explain your thought process clearly. Also, practice behavioral questions with real examples.
Full Experience
I was referred by a current employee which helped get my foot in the door. The process was intense with multiple rounds including a case study that required on-the-spot analysis. Despite strong technical skills, I was told my communication during the case study could improve.
Machine Learning Engineer Interview Experience
Candidate: Emily R.
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- Explain the difference between supervised and unsupervised learning.
- How do you handle imbalanced datasets?
- Describe a machine learning project you worked on end-to-end.
- Coding challenge: Implement a decision tree classifier.
- Behavioral: Describe a time you had to work under pressure.
Advice
Brush up on coding skills and be ready to discuss your past projects in detail. Also, prepare for behavioral questions focusing on teamwork and problem-solving.
Full Experience
I applied through the company website and was invited to a coding test followed by two technical interviews. The coding test was challenging but fair, focusing on algorithms and data structures. The interviews covered both technical questions and behavioral aspects. The team was friendly and the process was well-structured.
Frequently Asked Questions in ada
Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.
Common Interview Questions in ada
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 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: 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 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: 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res...
Q: The citizens of planet nigiet are 8 fingered and have thus developed their decimal system in base 8. A certain street in nigiet contains 1000 (in base 8) buildings numbered 1 to 1000. How many 3s are used in numbering these buildings?
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
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: 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: 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: 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: 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: 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)
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: A family X went for a vacation. Unfortunately it rained for 13 days when they were there. But whenever it rained in the mornings, they had clear afternoons and vice versa. In all they enjoyed 11 mornings and 12 afternoons. How many days did they stay there totally?