"The most challenging problem I encountered in my career was with my most recent employer. I had a significant project that comprised most of my annual budget. Due to extensive international travel, the client was challenging to work with because he was rarely available for comment. I needed this deal to work out, so, for six months, I made my work hours reflect his time zone. That allowed us to communicate via Skype daily. It also meant a fair share of late-night and early-morning calls for me! It was a sacrifice; however, I would do it again. I understand that sacrifices need to be made for successful outcomes."