The process was very smooth and overall a very positive experience. The interviewers were very knowledgeable and adept in their area. The recruiters are very cooperative, accommodating and straightforward. Unlike other recruiters they wont keep you in the dark. They will keep you posted, informed with all the updates and expect the same from you.
The interview process includes a preliminary Online round and multiple system design rounds (at least 3) and then one optional face to face Design and last final discussion with the Managing Director of India. At least this was the case with me as I was interviewing from different city, Hyderabad. The main thing they are looking for is whether you are good with the basics, whether you have the understanding of the pieces of system.
Online Round
Two questions to be completed (you can find the questions in other interview experiences): One DS+algo question and one SQL query question which requires right knowledge of Joins, Conditions, grouping.
Round 2 (Telephonic | Real world problem Design)
In this round you are given a real world problem and you have to optimise the current situation of the system.
In my case it was a city wise top 5 keyword listing system. on a given day you have to display the top 5 keywords which were searched in that city on the previous day. They are looking for whether you can optimise query, you know about indexing , you know about NoSQLs or not. You should know the working of SQL and NoSQL systems and their difference and applicability. So the focus is always on knowing the basics right, that's how your approach should be in implementing scalable systems.
Round 3 (Telephonic with the Director)
This round is about understanding of a system, a project and all the infrastructure, setup associated with it. You must have knowledge of Microsevices, REST, containerization, deployment. The question will be simple and straight forward, suppose you want to make a shopping website with only a system (computer) what all do you need. What all softwares, technologies you will choose.
Round 4 (Telephonic | Real world problem Design round)
This round is taken by senior engineer and the question is a Design problem. How will you make a scalable system like TinyURL . After the basic solution the question will be extended with some more requirements like how will you implement security in it, how will implement rate limiting for it , aliasing for customURl, expiry feature, how will you monetize it. How will you make it scalable (Caching). What all API you will implement, datastores (remember NoSQL).
I was called for a final face-to-face round with MD where the focus is on what kind of projects I have worked upon, they tell about the company vision.A healthy QnA and two-way discussion round. It's more of a cultural fit check round.
I had one more round before this which was the same as the Round 3 , where I had to come up with pieces of shopping site (various services) and the REST APIs for GET,POST etc. Very friendly and healthy discussion just to verify that the interviewee is the same person who gave telephonic round ;)
The company environment is very positive and energetic. They have a small but very energetic, enthusiastic and efficient team. You want to learn and solve complex and challenging problems this is the place which will provide you that platform and opportunity. They entrust you with the responsibility to implement/solve something new. They provide great certification and learning opportunities.
You will get to work with new technologies, new frameworks, languages. They have a highly experienced, accomplished core design team.
