It was informal. I had about 30 minutes discussion with one of the business partners. The topic mainly focused on my role in resource management to project management from my previous employers. Just in the first 5 minutes of the interview, the interviewer mentioned that she may have 2 opportunities for me, a Resource Manager and an Account Manager. Having this, she immediately refer me to the Manager for Business Development and we had about 2 hours of discussion on Account Management. After 2 days, I was scheduled for a final interview with the company's CEO and one of the Board of Directors. Few days after i had my job offer.