Hi, I saw your offer, and I decided to apply for this job. I think I am the right person for this job. I am very responsible and I like to think of myself as an organized person, so you should have no worries about the project due, I will always deliver it on time.
I am kinda new on this website (I haven't worked on many projects), but I'm always willing to learn new things, and I hope you give me an opportunity to do so, as I promise I would not let you down.
Looking forward to your response.