Dear Mr. XXX,
I truly enjoyed talking with you today and wanted to thank you for taking the time to interview me. The interview reinforced my strong desire to become a member of XXX Company. The job, as you presented it, seems to be a perfect fit for my skills, interests, abilities and career goals.
Having worked in projects including XXX, YYY, and ZZZ for many years, I do have a lot of experience related to the position. I am confident that I would definitely be a value-added addition to the group. I can make myself available for any further discussions of my qualifications that may be needed.
I very much look forward to learning of your decision soon. Please do not hesitate to contact me if you have any questions at (XXX) XXX-XXXX. Or you can always get in touch with me through my email address firstname.lastname@example.org.
Again, thank you for your time and consideration.