Dear Sir
I am working for IT company as mobile developer for 5+ years.
As you can see from My portfolio, developed many mobile apps and work with many clients all over the world.
I've just read your job posting line by line, and fully understood what you want now.
Your job description really caught my eye and it’s too fit to my skill.
I can finish your job from start to end with high quality in deadline.
Pls check my photofolio