Aon Senior Software Engineer interview questions

Started with a call from recruiter. They were very friendly and asked me to send them an updated resume so that They can submit my profile to the Engineering team. A week later I was asked to come for face to face interview with a senior business person. After that I was called the same day to schedule for another technical screening. I scheduled it a week later. On that day I was asked to take a 2 hours long computer test which was a combination of Behavioral and technical(Java questions). You will get to know whether you cleared or not when you finish the test. Once I cleared that I was called in for face 2 face technical interview 45 mins. The interviewer went through my resume and gave me a problem to solve which he wanted me to tell the approach how I would solve the problem. After a week I was contacted by the recruiter for the salary negotiation.