QueteCom Branding Developer

We're requiring an advances developer in Python, C, and C++, within advance acknowledgment in QuteCom project, to update take the last version from Qutecom, and customize it for us for Windows, MAC and Deb. OS, by doing the following: 1) customize the integration of Logo, colors, bottom, look and feel, about us info...etc. branding the application look&feel for us, customer balance, name...etc. 3) Customize the configuration wizzard, by addiding functions if it's an existing customer, if not singup, to get the customer login...etc. 4) Add a tab showing the a2billing customer portal, by api, or whatever, where allow the user to edit his details (name, address, email, company name, tax id..etc); See rates, see invoices and receipts, setup balance alert, raise support tickets (( in this tabe, we're working in other project to remove the support module from a2billing customer portal, and place instead of it a webservice to push tickets to sugarcrm, so for now, this support part, you would do it in ahead when it's concluded, or directly push the tickets to sugarcrm, you suggest). 5) keep the app firmware updateable automatically, and weekly from the stable repositories; 7) Setup a new function to retrive the device mac number, and push it back to our network to be recorded within each giving call in the a2billing cc_cdr table into additional fields as: mac nº. 8) Write clicktocall integration functions for firefox,iexplorer, for windows, mac, & linux, to do integration scripts with the app; 9) Suggest/develop CRM integration modules for SugarCrm, Saleforce, and zoho; Please provide me your estimate time for all of this, together, or separate it, we would start immediately, and keep you working with us for other projects, and for sure, updates, and bugs solutions for this one.