Website b2b customer login.

I am looking for someone to help me create a website b2b customer login. I am looking for an experienced programmer who is capable of handling coding, user authentication and security. The type of user authentication I need is password and the platform that should be used is WordPress. Additionally, the user permissions should be set to admin access. The website should be seamless and secure, not leaving any gaps for potential hackers. This website should be up to the highest standards and utilize the best available security practices.
Looking for website where my customer can login and then see my product range price description. and create own order. Orders will be sent to my office . No need for payment option. This is just website for existing customer to make order..
Website will have over 800 product. Need website professional person. With good design skills.