I applied online. The process took 3 weeks. I interviewed at BT Group (Ipswich, England) in Mar 2017
Interview
I had to do a competency-based Skype interview lasting around 30 minutes.
This was then followed several days later by a telephone technical interview lasting almost an hour.
A few weeks later, I then attended an all-day assessment centre in Ipswich.
All in all, it was far too rigorous for a simple summer internship
Interview questions [3]
Question 1
Whats the difference between a strongly-typed language and a weakly-typed language?
Was asked why I wanted to join the role standard questions then moved onto a technical Q&A where I was asked about Python specifically and different programming languages that I knew.
Interview questions [1]
Question 1
Explain what an object Oriented programming language is.
Good, the questions were in depth knowledge of Java and Reqct. 1 DSA question each round and LLD and HLD in round 2. The final round was on scalability and manager type questions.
I had 3 Rounds out of which two rounds are technical and last is managerial
1. Core Java, Spring boot, Streams related
2. LLD, Design related questions
3. Last Round was behavioural, scenario/situation based questions
Interview questions [1]
Question 1
1. Java 8 features, Java memory model, sql queries, stream api problems
2. LLD: Design Airline System
3. About project and general discussion