Paytm Backend Engineer Interview Questions
& Process

So the interview process had a few steps. First, there was an online assessment. Then, Round 2 involved questions on Core Java, an easy DSA problem, and a high-level design question. Round 3 was more about my work experience, discussing software architectures, and a low-level design problem based on a practical scenario.

I reached out to a recruiter for a Backend Developer role via a LinkedIn post. The next day I got a response, and a test link. The test was medium level. The very next day got a call from the recruiter for the interviews. There happened two rounds of interviews. The most shocking thing was, there was no hiring manager round. Three days after I got a call that I am shortlisted and the recruiter asked me for my documents. I shared with her all the documents. She ensured me that I will get the offer letter by the same week. It's now going to be more than 45 days, that I have not received any offer letter from them. The recruiter keeps on saying that her role is changed and she is overloaded. And she kept on ensuring me that I will receive it shortly. She even mentioned later that someone else is handling the integrations of the offer letter rollout. But there was no written communication. I only had a verbal confirmation, that she is processing for the offer letter. I have contacted the other person too, but he did not pick up my calls, nor did he reply to any of my mails. And she never kept any other person in the mail communication also when she asked me to share my documents. I am very disappointed with the management. Even they want to keep someone on hold, just tell them. Don't keep them in the shadow. Experiences like this only, defame the companies. Not expected from Paytm.

Terrible interview experience. The interviewer seemed to lack knowledge, which was surprising given their role at Paytm Payments Bank. They were unaware of basic concepts like PCI compliance and credit card tokenization. While algorithm and DS questions were asked, the interviewer was fixated on a single expected answer, even when more optimized solutions were provided. System design questions were answered correctly. The HR informed me of the rejection, which was unexpected as I felt the interview went well. I suggest that interviewers should have strong technical expertise. On a positive note, the HR was polite and provided immediate, clear feedback, even though it was negative. No hard feelings.