VEST Inc Associate Software Engineer Interview Questions and Answers

This was a Take Home test. I got a coding assignment where in I had to make a simple iOS app which can fetch data from an API and display it as a list on the screen. I used SwiftUI as its faster to code there. It was not complicated at all if you know youur stuff and they asked me to include tests (both Unit and UI). I already had my code snippets ready (for example for a Network class) so I could write a lot more code quite easily. It was taken on Hackerrank and I had 120mins to complete it. I read the instructions carefully and did as asked. I added comments to everything and made it extremely neat and structured using all the best coding practices of a large scale iOS project. Submitted it and that was it.

This was a discussion of my assignment. Take Home Follow Up. It was taken by an SDE 3 from US and he asked all sorts of questions about my code. I explained everything in great detail and told him what all things I would do better if i had more time. Simple round. Be ready to explain everything, every word and line.

Q1. Design a Order and Cart Page in iOS. The user should be able to order an item, see it in cart, the limit of each item is set to 1. Show the various classes, network requests, APIs, information flow, etc. N...read more
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Q1. Mention a time where your had to deal with a challenging or difficult colleague and how did you deal with it?
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Q2. Mention a time where you had a conflict with your manager regarding a technical matter in your project? Where you had a different approach to a problem and had to come to a conclusion?
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Q1. A general discussion about the project and my interests. Discussing my roles and responsibilities and whether I'm comfortable with the location, commute and tech stack.
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Q1. 2 sum in array
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The Two Sum problem involves finding two numbers in an array that add up to a given target value.
• Iterate through the array and store the difference between the target and current element in a hashmap

• Check if the current element exists in the hashmap, if yes return the indices

• Time complexity can be reduced to O(n) using a hashmap
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Q2. Reverse a linked list
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Reverse a singly linked list and return the reversed list.
• Iterate through the linked list and reverse the pointers to point to the previous node instead of the next node.

• Use three pointers to keep track of the current, previous, and next nodes while reversing the list.

• Update the head of the list to be the last node after reversing.
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Q3. In given time slots , find conflicting time slots
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Q1. Asked about projects
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Q2. Longest palindrome
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Find the longest palindromic substring in a given string.
• Iterate through each character in the string and expand around it to find palindromes

• Use dynamic programming to optimize the solution

• Consider both odd and even length palindromes
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Coding Test consists of 3 Problem Question (2 Logical questions and 1 SQL Query ) and Around 20 MCQS
Platform - CoderByte

30 Aptitude Question
3 Mail Writing Question

Q1. Explain 1st Problem Solved in Coding Test. Optimize it.
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Q2. Explain 2nd Problem Solved in Coding Test. I failed 1 test case in 1st round which was told to solve again.
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Q3. Explain 3rd Question based on SQL Query.
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Q4. Write a code to Reverse Digits.
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Q5. A problem question for solving a SQL Query.
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Coding Test was on Coderbyte. Consisted 4 questions. 1 coding and 3 of web developement.

Q1. General HR questions.
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Q1. General Techinal questions
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Q1. Spark architecture.
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Q2. Narrow and wide transformations
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Coding test duration is 30 to 40 min
on paper pen and topic is simple like related to string,pattern and number's

Q1. Introduction about yourself
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Q2. Salary expectation
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Q1. Related to the basic of html css and js
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Q2. Ask run time short code and explanation
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Q1. About yourself and other
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Q2. All about company your expectation and salary disscuced
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Q1. Strecture of sql statement
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SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.
• SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

• They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

• Tables are referenced using their names, and conditions are specified to filter data.

• Joins can be used to combine data from multiple
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