Going deeper/heavily on understanding php / relational databases (sql) More superficial/light on architecture / systems designs
Senior Backend Engineer Interview Questions
2,786 senior backend engineer interview questions shared by candidates
Sorry, but we already filled in the position last Friday
Programming Challenge - backend webserver
Would we test external libraries while testing the code base with unit testing?
The only real question was if you willing to take a couple of assessments that were a time commitment.
Implement an endpoint that returns the number of started and stopped charging sessions for the past 1 minute. The implementation has to run in O(log n)
1. Given a stair of N steps, and an array k of step sizes, write an algorithm/ function to compute the number of possible ways to climb it. (30 min) 2. Given 100 Questions with their choices as an array of JSON. Design a system that queries 10 questions at a time and records their answers. And when the user requests again for question, a new set of 10 questions and choices is sent. write a server for it. (30 min) I answered both questions with a little bit of help on the second one, but didnot get an offer. Neither did I get a feedback on what went wrong and what were they expecting. HR doesnot reply mails, nor answer calls.
Hld round Signed NDA ,Similar to chat app or slack app
Interview with the Head of SW: What types of Unit tests are there?
Build a rest api to query a graphql DB. Add rate limiting and authentication.
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