Hello,
First of all,please allow me to introduce myself. I'm Sargon,a 29 years old web developer with more than 10 years of experience in programming.
If you'll take a quick look at my profile you will notice my perfect 5 stars rating out of 235 projects with a 97% percentage of completed jobs.
That along with past client comments regarding my performance i believe will give you a rough picture about my skills.
A couple of questions regarding your project:
1) Can you give me more details about what new features you need?
2) Can you please post the url of your site so i can see myself what you have so far?
Thank you for your time,
Sargon