To whom it may concern,
Allow me to introduce myself. My name is David. I used to work in a global strategy consulting firm for several years, and therefore I have a solid background in research and data mining. Up to now, I am still using such skills on a day-to-day basis.
It will be such a great opportunity for me to contribute my skills to your needs and I look forward to working with you.
Thank you very much.
Kind regards,
David