is this natural expression?

Hi.
I'm not sure below expression whether natural or not.
would you please let me know how to have the natural expression?

I've really interested in the M.S. system and I always participated in the S/W(sotfware) fair to follow the tech trend. and I saw that the possibilities about open S/W(software). and I decided to work in this fields. and I found the excellent opportunity in M.S. also I love this position's the role and responsibilities and I have confidence to accomplishment to work.