Is this setense natural? I'm anxious about making a cover letter now. are these following sentenses natural? I’m honored to have opportunity to introduce myself to you. After graduating from university, I had worked for 7 years for company that producing automated equipment in the fields of semiconductors. I had worked as a design engineer there. Mostly I took care of designing automated units as Pick and Place in manufacturing of a variety of equipment. In addition, I designed layout, frame, and diagram. And also I have experience in working as project manager. “Working for a company”, in short, it means just the next step that the person who finished school should go through in a natural way. However, reflecting 7 years past, I realized that it may be considered to be an extension of a studying. The realization gave me homework to solve and also made me keep studying as if I was still a student even though I already graduated. Without any effort or the pain in my own fields, it’s difficult to get good results. So I keep it in mind, I’m trying to study and strive to be ahead of other engineers in my own fields. For achieving my goal, I’m considering that the acquisition of knowledge on engineering is very important. Therefore, even now, I sometimes go to a library to study in an effort to get more information on engineering or to solve the problem that I faced in the company. Something new stimulates my curiosity and makes me happy. I’m searching for adventurous things that make me feel powerful alive. I want to show all my capability if I can do it. I’ll make constant effort to improve my skill in own my field. So, I will try to become a better engineer than now. I’m ready to challenge!