Vtiger Build

We are looking for a Vtiger customization with broadly the following specifications 1. Optimized for a Multi-Tenant environment (yes another one i know) 2. An enhanced invoicing module [login to view URL] and simplification of the interface without loss of functionality (new Gui) 4. Various API integrations 5. Rebuild of the installation package with the modifications into a new image for Linux deployment Plus a bit more detailed work to long to list here This project will require an lot of initial work, and then regular modifications for a couple weeks per month for at least the next 12 months The budget is flexible The quality of work is not! Requirements: - Must have intimate knowledge of Vtiger - Must Have a high satisfaction rating - Must be committed to the project - We require regular updates - Must have a testing environment we can access - Most importantly have the determination to complete the project to very high standards