Holla, I’m Siddhu Vydyabhushana from Vizag, India. Recently I applied to HackerEarth through its recruitment platform. I have gone through all the rounds and I would like to share my interview experience with you guys through cuppa labs.
Online Test
Coding Hackerearth Test
In this coding round, I was given 4 hours to develop E-Commerce cart app using React, Redux and Node. No need to be exact, you can submit your own design as well.
- I made something like above. Github repo Available here
- I submitted and waiting for result. Finally I got selected for next rounds :-)
Round 2
Skype Online Interview
In this interview It was started with introducing ourself as usual and then she explained about company and my role how it would be if I get selected.
Interview Questions:
- How the html will be rendered in browser. What is the flow when you run single page web app?
- Why <!Doctype html>? What happens if you didn’t include?
- What’s the difference between Async and Defer in script tag?
- Some css questions like
<div class=”section”>
<p class=”para dark” id=”test”>it should be dark</p>
</div>
.section #test {color: red}
#test {color: wheat}
- Explain about css display: flex property? Lot of discussion on code editor.
- Explain about closures
- Output of the following programs?
function constfuncs() {
var funcs = [];
for(var i = 0; i < 10; i++)
funcs[i] = function() { return i; };
return funcs;
}
var funcs = constfuncs();
funcs[5]();
- Javascript array functions like splice, slice and related questions.
She is done with first round. I got a call from HR next day to schedule next round.
Round 3
Skype Video Interview:
It also started by introducing yourself and then he started interview.
- What’s the importance of http headers?
- Difference between session storage, localstorage and cookies?
- Cookies time expiration related questions
- How a webpage loaded. Architecture of flow?
- How Virtual dom works in React. What is shadow dom in HTML5?
- React Component lifecycle?
- Difference between React and Angular. Which one is better?
- Javascript testing framework. Jasmine and advantages, best practices
- Event loop and how setTimeout works?
- Promises chaining and how callbacks difference from promises?
- Some javascript tricky questions like- [1,2,4] + [4,2,1] [7]*[7]
- Can you explain something you feel proud that you developed?
- Basic data structures and algorithm questions
It went almost 2 hours.it went well.The same day evening I got call from HR that I cleared first two rounds. She asked me to come banglore for next 3 more rounds. They booked flight tickets. I went to bangalore for pair programming round.
Round 4
Managerial Round: Engineering Manager
I reached bit late to office because of flight delay, Office looks soo cool as every startup looks. I had nice lunch they provided.
Not that much technical. He tested my domain knowledge and the skill set. We had a friendly conversation regarding my previous company experience. He asked about testing experience. Open source contribution lot of things which I mentioned in my resume.
Round 5
Managerial Round: Engineering Manager
-
They gave Thinkpad Lenovo laptop ( I’m a vivid mac user, depressed :-) ) and first question was Need to implement data table with pure javascript.
-
Need to implement calculator with React and Redux.
Round 6
Last round with Co - Founder:
He is so friendly, he interviewed me while showing entire company. And nothing much to share normal HR related questions he asked to check my communication and leadership qualities.
Finally I got a mail next day that I got selected as a Software Engineer.
Feel free to comment down and will help you to get selected. Thanks Happy Coding:-)
