2 samples + my answer, please help on my writing!

Sample 1, Basicaly, I look forward to this job as a good career
move. Moreover I think I can do better with more
responsibilities and at higher level.

Sample 2, I want to change my current job to get opportunity in term
of new challenge, extra responsibility, better technical future &
more scope of my professional growth to wide up my
experience meet the changing world.

My answer: Right now, I work at a clinical site. I handle of phases of the study, from regulatory, IRB submission, patient appointment, and data review. I hope I can focus more in the data management field. Your company is a great fit for my career development.