1. There is an online assessment, it's the same question every year
2. There is then a behavioural interview, basic questions regarding how you work in a team, using STAR technique
3. Then there's the final technical round - the coding round was merging two arrays, super simple and basic. You need to consider all edge cases and lay them out and write out test cases. Everything needs to be perfect and quick in order to pass
System design is regarding netflix, you get given requirements like:
Customers should be able to browse the TV shows and movies we have in our catalog. We’ll list titles by genre and perhaps other categories like “recently added” or “top ten”.
Customers should be able to play videos at different resolutions on different devices.
We should remember the customer’s play position so they can finish a movie they started the day before.
You have to be perfect with the system design, get the requirements down asap, draw out the diagram asap and describe everything in low detail, then you will be asked questions regarding aspects of the design e.g. what would API requests look like, what technologies to use, etc. Be quick and polished.
I received a rejection for dumb arbitrary reasons, they're super tedious about the process and really care about you having everything down really perfect and polished. I know multiple other people to have been rejected for small reasons too, so you have to be quick and polished.
Interview questions [1]
Question 1
Merge two arrays up to a given length and return that merged array
Design netflix given requirements
I applied through university. I interviewed at HubSpot (London, England)
Interview
I went through several rounds, including an initial screening, a technical assessment, and follow-up interviews. The process was well structured, but I found the technical part challenging because it required both problem-solving and clear communication under time pressure. The interviewers were professional, and the questions were relevant to the role. Although I did not receive an offer, the experience was still valuable and helped me understand the company’s expectations better.
Coding assessment with multiple levels. levels open up as you pass them. Time constraints looked tight. I could not get through all levels. It was related to Designing banking system.
I applied through an employee referral. I interviewed at HubSpot (Dublin, Dublin)
Interview
Consists of an Online Assessment, followed by 3 rounds (2 System Design, 1 coding)
One of the System Design interviewer was less experienced (with an experienced shadow interviewer). I feel like they didn't drive it correctly, didn't ask me the right follow-up questions and eventually gave negative feedback.
Interview questions [1]
Question 1
Online Assessment: Multi-part question involving incremental development of a memory cache database
System Design 1: Design a weather widget to get data from upstream and display to customers
Coding Round: Incremental question involving API calls to get data, parse and do calculation
System Design 2: Design video streaming system (like Netflix)
