Swiggy Interview Experience for SDE-1

Status: A backend developer with 2+ years of experience in a service-based company.

Position Interviewed for Swiggy SDE1

Location: Bangalore (Interviews were completely virtual)

Month: January 2021

Application Process:

Applied in LinkedIn.

Round 1: (Online coding)

• Conducted in Hackerrank platform.
• Duration: 1.5 hrs.
• Question 1: Some array-based questions.
• Question 2: A string is given and we have to reverse the string in such a way that each word are at the same position and it should be reversed For example if input string is ” do coding from geeksforgeeks” then the output string will be “od gnidoc morf skeegrofskeeg”.
• Question 3: A square matrix is given and we have to rotate that matrix element with 90 clockwise and print the output matrix.

After 2 days, I got call for the interview.

Round 2: (Machine coding round)

• Duration: 3 hrs.
• This round is essentially about resolving a real-world design problem. The task assigned to me was to create a calendar application that schedules meetings, displays different users’ calendars, and allows users to accept or reject meetings. It’s similar to creating a Google Meet calendar.
• There was an interviewer available. He was extremely helpful, and he even extended the duration because this round was only blocked for an hour.
• At the end of two hours, I had not completed all seven of the requirements given to me, but he looked into my design further and also asked my design for the remaining requirements that I had not completed. We had a good discussion about various extra requirements that lasted about an hour.
• The code should be working at the end without any errors.
• I had the next round on the same day.

Round 3: (Data structures and algorithms)

• Duration: 1 hr.
• 3 questions. The approach, time & space complexity, optimization if any were all discussed. I solved only 2 of them but still was selected for the next round.
• Question 1: A 2D matrix is given we need to find a unique path while there is a obstacle. https://www.geeksforgeeks.org/unique-paths-in-a-grid-with-obstacles/
• Question 2: This was the standard question of travelling salesman problem using greed method. https://www.geeksforgeeks.org/travelling-salesman-problem-greedy-approach/
• Question 3 : A binary tree is given and we need to print all the nodes that are seen from the top. https://www.geeksforgeeks.org/print-nodes-top-view-binary-tree/

Round 4: (Hiring Manager round)

• Duration: 1 hr.
• He asked me about the specifics of my project and we had a few discussions about it. He asked few questions on my technical skills that I have mentioned on my resume & also the best practices and few behavioral questions.
• It was more like a conversation more than an interview.

Following that, I had a phone call with HR. I won’t consider it a new round, but we discussed the package and other benefits, as well as a few questions. HR had been extremely helpful throughout the entire process. He kept me up to date on my feedback in each round, which was beneficial.

General Thoughts:

• The interviewers and HR team were so friendly, and the interviews were extremely well organized.
• Writing clean code, such as relevant variable naming, reusability, and so on, was expected.
• The project details and technologies mentioned in the resume were questioned in depth.