"Hi,
I am a React expert that have over 5 years of experience in connection with JS Framework.
I am espectially familiar with React and Redux.
I am pretty sure I can help fix your project. Because I've previously worked on the similar same project.
If you award me the project, I'd be very happy to discuss this further and get started for you as soon as possible.
I look forward to hearing from you.
Yours sincerely!
"