Couchbase Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 32 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Couchbase.
Couchbase
Software Developer
Entry Difficult Positive experience No offer 4 rounds
Interview process
Technical screen Technical screen Technical screen Technical screen
Interview formats
Coding Technical System Design Coding
Amazing interview process. First round had a couple of easy dsa questions, like two sum and checking for 50% same elements in an array, followed by concepts like parallel sort, threads, and concurrency. The second round involved a design question where I had to implement malloc, free, and compact functions, keeping fragmentation in mind. The third round was also a design question, asking me to efficiently read a large file and identify prime numbers. The fourth round included a coding question with a tight 10-minute time limit, which I couldn't crack. Overall, an enlightening day.
Confirmed questions6 questions
- I was asked to implement the two sum algorithm.
- I was asked to find if the array contains 50% of the same element.
- I was asked about parallel sort.
Couchbase
Software Engineer
Mid Average Positive experience Accept offer 7 rounds
Interview process
Recruiter call Take home Technical screen Onsite Background check Offer
Interview formats
Technical Behavioral Coding
So I applied online and HR called me. Then I had a project submission which they gave plenty of time for. The team reviewed it in about a week and then set up an online interview to chat about the submission, which was fun and I really started liking the team during that. After that interview, I was called for an onsite interview in 2 weeks. It included 4 interviews, a chat with the hiring manager, and a lunch. The 4 interviews were mostly behavioral, discussing challenges, projects, and some cool stuff I built, plus 2 easy-to-medium algorithm problems. Meeting the team directly was great, they were funny, supportive, and friendly. Once I got the offer, I was sold.
Confirmed questions3 questions
- Can you tell me about some challenges you've encountered?
- Could you describe some of your projects?
- Tell me about your resume.
Couchbase
Senior Software Engineer
Senior Easy Negative experience No offer 7 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite Background check
Interview formats
Coding Technical System Design
They said it would be one or two skype screenings, followed by a full day onsite with about 5-6 rounds at their office in Koramangala. The telephonic round involved one programming question about merging intervals and some design questions about the factory design pattern. The interviewer mentioned having another programming question but ran out of time. I think it's really hard to do two programming questions well in just a one-hour Skype call. It was a Skype call and then they shared a Google Doc for me to write code. I answered everything correctly, but they still rejected me, which is weird. The interviewer also seemed like a junior engineer, not very experienced with interviews. Honestly, it was a total letdown.
Confirmed questions2 questions
- How would you merge given intervals, for example, {1, 9}, {2, 3}, {5, 10} into {1, 3}, {5, 10}? Explain the approach, like sorting by 'x' values and scanning to merge, and the complexity.
- Can you discuss a design question that could be solved using the factory method, prototype, or flyweight design patterns?
Couchbase Software Engineer Interview Questions
Quoted word for word from Couchbase interview reports.
“What data structure would you use to store words for a hangman-like game, focusing on quick word retrieval?”
Read reports →“Given a matrix containing only 0s and 1s, how would you find the largest sub-matrix that consists entirely of 1s?”
Read reports →“How do you find a word in a large corpus of text?”
Read reports →“Given a main goroutine that spawns two others, what's the approach to ensure the main goroutine completes only after the other two have finished?”
Read reports →“Can you provide the topological order of cities visited, given the cities in any sequence?”
Read report →“How would you search for a specific word within a massive text corpus?”
Read report →“Design and implement some APIs for an efficient way to store and retrieve data in memory, including for range scans.”
Read report →“Could you explain the differences between SQL and NoSQL databases?”
Read report →“Can you implement a spin-lock in C++ and explain its use?”
Read report →Formats, difficulty and experience
Across all 32 Couchbase interview reports.