Hello Sir,
I have 2 years experience in React development and more than 3 years working in front-end development.
I am expert In ES6, JSX, Redux and all requirements for creating a professional product. I know you want your product on-time, So you can trust me for all of your requirements.
I know you want a professional developer, This is the reason I am bidding on your project.
As I understanding of your project description, you want to create an dashboard like for managing Users and Users can pick some plans and pay them. Also Users can navigate from current active plan to others(upgrade/downgrade).
I have some questions.
First one, What type of payment you want to use? (Credit-Card/PayPal/...)
Second, Do you need to use more than 1 payment method ? (For example: Using PayPal for primary and If user want, He/She can pay with His/Her Credit Card)
Third, Do you have a complete wire-frame of your application design?(Like a complete PSD file or PDF and etc.)
Other question can be asks in our chat discussion.
It is your right to get the best result.
Best Regards.