Valtech India Systems Senior Software Engineer 1 Interview Questions and Answers

Q1. Java, springboot, microservices
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Client interview - java coding, AWS

Creating a full flow of spring boot application to take input and update database

Q1. Discussion of first round code and some other technical questions including coding
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Q1. Basic questions on your profile and behavioural questions
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Q1. Salary negotiations and other perks discussion
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Q1. Previous experience
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Scenario based questions

Q1. Java 8 , Microservices, AWS
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Q1. .Net Core 7 & MVC
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Round duration - 60 minutes
Round difficulty - Medium

Mcq + Data structures questions

Q1. 
Maximum Sum Subarray Problem Statement
Given an array of integers, find the maximum sum of any contiguous subarray within the array.
Example:
Input:
array = [34, -50, 42, 14, -5, 86]
Output:
137
Exp...read more
Ans. Brute Force Approach
1. Create a nested loop. The outer loop will go from i = 0 to i = n - k. This will cover the starting indices of all k-subarrays
2. The inner loop will go from j = i to j = i + k - 1. This will cover all the elements of the k-subarray starting from index i
3. Keep track of the maximum element in the inner loop and print it.
Space Complexity: O(1)Explanation:
O(1) because the extra space being used (looping vari...read more
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Round duration - 70 minutes
Round difficulty - Medium

Standard System Design round

Q1. Design a Doctor Appointment System and provide some test cases.
Ans. 
Tip 1 : Implement using OOPs 
Tip 2 : Try to tell your approach to the interviewer as much as you can side by side
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Round duration - 90 minutes
Round difficulty - Medium

Interview of DSA + OOPS + Databse(SQL query) + Operating System

Q1. 
Left View of a Binary Tree
Given a binary tree, your task is to print the left view of the tree. The left view of a binary tree contains the nodes visible when the tree is viewed from the left side.
Inpu...read more
Ans. Recursive Approach
This problem can be solved through recursion.We will maintain max_level variable which will keep track of maxLevel and will pass current level in recursion as argument. Whenever we see a node whose current level is more than maxLevel then we will print that node as that will be first node for that current level. Also update maxLevel with current level.
Space Complexity: O(n)Explanation:
O(N), where ‘N’...read more
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Q2. What is the difference between CHAR and VARCHAR2 data types in SQL?
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Q3. What are the various types of constructors in C++?
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Q4. What is the difference between overloading and overriding?
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Round duration - 60 minutes
Round difficulty - Easy

Hr round - normal hr questions + situational 

Thoughtworks community discussion

Q1. Why should we hire you?
Ans. 
Tip 1 : Read all Thoughtworks community page and be honest

Tip 2 : Be open-minded and answer whatever you are thinking, in these rounds I feel it is important to have opinion.

Tip 3 : The cross-questioning can go intense sometimes, think before you speak.
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There were 4 sections-
1.Big data-some multiple choice questions
2.Python-2 basic programming questions
3.SQL-4 case questions on SQL queries
4.Pyspark-Basic multiple choice questions

Same as round 1 but there were no multiple choice questions,it was a subjective paper where they check your thought process and your approach.

Q1. Technical interview was based on -Your project discussion -Big data terminologies,Spark framework,working and architecture -Some case study questions and how you could have optimized it. -SQL basic querie...read more
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Q1. Share details of your previous job.
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Q2. Why are you looking for a change?
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Q3. What are your salary expectations?
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Q4. Tell me about yourself.
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