Jubilant Foodworks

Role: Graduate Engineer Trainee (SDE 1)

College: NIT (Tier 1)

Interview Date: 2022-11-09

Interview Type: On-Campus

Result: Selected

Difficulty: Medium to Hard

Rounds: 3 rounds

Topics Asked: DSA, DBMS, System Design Concepts, Computer Networks, Resume Discussion, Projects, Behavioral

Experience:

This experience details the interview process for a Graduate Engineer Trainee (SDE 1) role at Jubilant Foodworks, leading to an offer.

Round 1: Online Assessment (Day 1)
This round was considered quite easy. It included 2 DSA-based coding questions (20 minutes each) and 30 MCQs on DSA, DBMS, SDLC, and Computer Networks (50 minutes).

Coding Question 1: Given a number n, find if it is a prime number. The candidate used the traditional approach with `sqrt(n)` for checking divisibility.

Coding Question 2: Leetcode Jump Game II. The candidate had solved this before and directly applied the known approach.

MCQs were of medium difficulty, including output-finding questions and questions about ACID properties.

Round 2: Technical Interview I (Day 2)
This round lasted 60 minutes. The interviewer was frank, starting with an introduction and hobbies. They asked about favorite subjects and why.

Q1: How will you delete an element from a linked list? The candidate explained the general approach.

Q2: What are ACID properties? Give examples of all. The candidate provided definitions and examples. A follow-up question was asked: If two people try to book a ticket at the exact same time, what will happen? The candidate initially didn't know but recalled concurrency control algorithms with hints.

Q3: This question involved deleting a specific element from an array, requiring a switch case for user input (index or element). The interviewer insisted on an O(n) solution, which the candidate found challenging to achieve. Despite this, the candidate was shortlisted for the final round.

Round 3: Technical Interview II (Day 3)
This interviewer was described as chill. The round began with an introduction, discussion of life goals, and "Why Jubilant?".

Questions were asked about personal projects and hackathons. Finally, the interviewer asked if the candidate had any questions. The candidate asked about the work culture.

Result: The candidate received an offer later that night.

Tip: Consistency in preparation is key, even if starting late.