HI, I can do it!
I am a senior software developer with 5-year exp and website and mobile dev is my major skill as well as my favorite part.
Actually, I am very confident on your project and I am sure you will be satisfied with my work.
Just do believe me!
Honestly can say that I have good skills and exp for your project and will perfectly satisfy you.
I wanna have a good relationship with my great clients like u and will do my best!
Thanx.