MacLean Engineering interview questions

There were two seperare interviews. The first with the Team lead and a HR rep followed by a technical interview with three other senior members of the team. After the interviews I received a phone call about the offer.

Applied on line, got a phone interview request immediately, one HR, one from engineering department, it was fairly short interview about 20 mins. I did not prepare well so I understand they just want to end the interview ASAP