WSO2 Enterprise Integrator & SAP integration

I have an existing integration between a Java based Invoicing platform that integrates to a SAP ERP system via WSO2 EI and the associated SAP adapters. I am looking for help in extending this integration. Ideally, I need an expert who understand and is familiar with WSO2 EI and associated data transformation. SAP knowledge whilst helpful, is not mandatory. Ability to dedicate time between 10am and 6pm Singapore time is a must. There is FULL TIME work for up to 2 months.

Please respond only if you are a WSO2 EI data transformations.