Developer wanted for expansion of existing custom-module in OpenERP / Odoo.

We are looking for a developer to further develop a custom module in OpenERP/[login to view URL] module should work for both OpenERP v7 and Odoo v8. Existing custom module, and credentials for accessing external accounting-system will be provided upon acceptence of offer. Offers should include a period of bugfixing after completion of initial development. Attached excel-sheet with example from tables (in OpenERP/Odoo and external system) are from OpenERP v7. The developer needs to find out which tables that has to be used from Odoo v8. The module, as it is today, synchronises partners (customers/suppliers) with an external accounting software/system using MSSQL-database. New development: We want to export invoices and creditnotes from OpenERP/Odoo to External system, when they are validated. When validated, the module should check if an open "accounting-bundle" for the the right accounting period exists in system, if yes: alter bundle-record and add records for invoice/creditnote, If no: add bundle-record, and add records for invoice/creditnote. (Invoice/creditnote-lines with the same tax, and accounting_account should be added together, before adding records in external system.) -We need a new field/column in account_tax. This is because we need to connect Odoo/OpenERP's tax-accounts, with external codes. -We need a new setting in exisiting Module. E.g. called "Bilagserienr". This setting is used when exporting invoices/credit-notes from Odoo to Visma. -The module needs to work for companies that have departments, and companies that don't have departments (A check to see if account_invoice(department_id) exists) ====== Module as it is today: When installing module, ext_custid and ext_supid are added to res_partner table in OpenERP/Odoo. -Settingspage, with information such as: sql-server address, username, password, database. -Button: Syncronize from Visma: Traverses table (actor) in external database. Checks if partners in OpenERP/Odoo has set ext_custid or ext_supid. If yes: alter record in OpenERP/Odoo, if not: creates new record in res_partner, and sets ext_custid/ext_supid on partner in OpenERP/Odoo. -Button: Syncronize to Visma: Traverses table (res_partner) in OpenERP/Odoo. Checks if partners in OpenERP/Odoo has set ext_custid or ext_supid set. If yes: alter record in External system, if not: created new record in table actor (external system). If partner in OpenERP/Odoo is both customer and supplier, 2 records are checked/created in external system. -When creating new partner in OpenERP/Odoo (customer/supplier): If partner is a customer, created new record in external table, and sets ext_custid on partner in OpenERP/Odoo with generated external customer number. If partner is a supplier, created new record in external table, and sets ext_supid on partner in OpenERP/Odoo with generated external customer number.. If partner is a customer and supplier, creates two new records in external table, ands sets both ext_custid & ext_supid. -When altering partner in OpenERP/Odoo (customer/supplier): If ext_custid and/or ext_supid are set, updates record in external system. If a customer becomes a supplier, module creates new record in external system and sets ext_supid. (the same if a supplier becomes a customer, only ext_custid are used and set).