My Account Manager with Pay Gateway

We are looking for a plug-and-play account manager system that we can purchase and have installed into our jobboard so users can access their own My Account and process payment orders, post jobs, post resumes, etc. Our job board is live but needs this account manager. We have the payment gateway but it needs to be installed into a My Account (account manager). This account manager should be sophisticated enough to allow employers to post jobs and jobseekers to post their resumes, and allow employers and jobseekers to purchase products through the account manager. We also need the account manager to be able to store and manage jobs and resumes posted, and collected into folders for folder management and submissions management. We are looking for a similar account management system to that of the big job boards with similar features. There will also be some customizing to the account manager for our unique products and services. Development should be in PHP/Msql