I'm working for an international German company. A couple of weeks ago, I was part of a group of candidates (within the company but from different locations) which competed for a position. The position is an assignment in Germany, and one year later come back to implement some system in my original country/region.
The interviewer was the head of the consulting group (a German guy), and after the interview he gave me his card and told me I could send him an email anytime later.
I was noticed last Monday that I did not get the position. The HR Manager told me I was the second option for the project, but they went for my colleagues experiences instead. She told me it was a great exposure for me within the company, and for further project they could think of me right away.
This is my first time on a top level interview, and I do not how to proceed for the follow up. I would like to make a clear statement telling them I'm more than able and interested in further projects within the company, and be part of their consulting division.
Could you please give an advice which is the best way to approach this letter?