Infosys

Online Assessment I applied for the role, and later appeared for the Online Assessment (OA). The OA consisted of 3 coding questions with a total duration of 180 minutes. There were 2 medium-level and 1 hard-level questions. The problems were quite challenging, so having a strong understanding of DSA is important. I was able to solve all three questions within 1.5 hours. Technical Round After the OA results were announced, I was shortlisted for the L2 role. The technical interview was conducted at the company’s Kolkata New Town office, and I was informed about the interview around 8–9 days in advance. The interviewer started directly with DSA and gave me 2 medium-level problems, which I had to solve and code on LeetCode. It took me around 40 minutes to explain and code both solutions. The problems were based on Insert Interval and Circular Tour. Next, the interviewer asked several in-depth questions about one of my projects involving image processing. Unfortunately, I was unable to answer a few of the questions. After that, I was given a medium-level SQL problem based on Confirmation Rate. I was able to explain the correct approach, but I forgot the syntax for the "CASE" statement and could not code the solution correctly. The interviewer then asked some basic API-related questions, followed by two system design questions related to the Singleton Design Pattern and the Interface Segregation Principle (ISP). Finally, I was asked a few basic questions about cloud technologies and sockets, as I had mentioned using them in one of my projects. Overall, the technical interview lasted around 1.5 hours and covered DSA, SQL, projects, APIs, system design, cloud, and sockets.