Designing and implementing a contractor service site

I am looking for someone with experience in designing and? implementing? web sites - both? the? front and back ends. On the front end I am looking for a smoothly designed professional website for contractor services. There will be: 1. A corporate blog 2. Multiple user accounts 3. Portfolio and resume posting 4. Bidding system for jobs 5. Private messaging system 6. A "judicial" system The website must look sleek, professional, and be easy to navigate. You will only have the business's logo and slogan to guide the aesthetic design. The backend must allow: 1. Monitoring of jobs and those that have gone through 2. Integration into some form of payment system 3. The ability to control and message users, and groups of users 4. A system to delegate and control the "judicial" system 5. The ability to create logins into the backend with limited access (ie employees without admin access). I am looking for developers located in the US - if you are outside the US, only contact me if you are absolutely certain that you are? reachable? during US work hours and speak fluent english. I must be able to communicate with my developer regularly. I require seeing your portfolio before I make any choices - on top of any resumes you send me, you must include sites that you have done that I can actively see your skills in action. I will work with you throughout the project, being reachable near 24/7 to answer design questions, bi weekly meetings to discuss progress and design, as well as creating a detail document describing overall system use cases and testing plans to ensure the product is delivered as desired. I understand that this is a complicated project, but am prepared to pay accordingly. I look forward to finding someone! ## Deliverables All detailed and additional requirements will be discussed with contractors privately over vworker's private messaging system once portfolios and resumes are reviewed.