Whatfix Fullstack Engineer Interview Questions
& Process

So, there were 5 rounds in total. The first round was an online screening test that lasted for an hour and included both coding and aptitude questions using JAVA. It had 10 multiple-choice questions covering JAVA and HTML, plus 2 coding questions that were pretty straightforward and just needed some basic logic. The next day, the remaining rounds happened. Rounds 2, 3, and 4 were technical interviews conducted via Zoom. Round 2 focused on JAVA, OOPs, and time/space complexity. You really needed to know the Java library hierarchy and their time complexities inside out to pass this one. Round 3 was about my data structures, algorithms, and problem-solving abilities. It started with the Java map interface hierarchy and complexities, then moved to tree data structures, specifically AVL and red-black trees. Finally, two coding questions were given: Kadane's algorithm and checking for a palindromic number. Round 4 was another personal interview where I had to code three questions and explain their time and space complexities. These were also quite easy, mainly testing logic and knowledge of Java's Collections framework. Round 5 was the HR round, a phone call, which was actually pretty fun! They just asked about my future goals to see if I'd be a good fit for the company.

Total 5 rounds. Started with a screening which involved an assignment with 2 questions. This was followed by a technical interview, then some Java questions. HR mentioned there were 2 more rounds, but after waiting 7-8 days, I received an email stating they found other candidates better suited during the pre-screening. I'd advise against wasting time interviewing with such companies; they seem to be doing marketing, and even if you pass all rounds, you get the same rejection message.

Recruited via campus placement. Day one involved an online test with a coding question and technical questions on C++, Java, OOPs, time/space complexity. Day two had interviews for shortlisted candidates. I went through 4 rounds: the first two were technical, the third was directorial with some HR and OOPs questions, and the fourth was purely HR. The interviewers were very friendly, open, and encouraging, making it a detailed and fair process to ensure the right candidates were chosen.