ABAP Developer for ongoing assistance in various projects

Our company is looking for a skilled abap developer assisting in ABAP development projects (remote on our development landscape and on customer SAP systems). - must: OO ABAP development including knowledge on OO patterns, Unit testing and software design / UML - UI development with classic Dynpro, Webdynpro, BSP/ WebClient (optional) - generell understanding of Business Applications MM, SD, PP (no detailled process knowledge required) - use of or ready to learn latest SAP technologies like BRFPlus or Switch Framework - optional but prefered: c# or Java experience (e.g. for interface development) - perfect: German understanding Tasks: - development for SAP Add-On solutions (allmost no business knownledge required, Add-On tools are based on Netweaver / Basis for example a abap based certificate authorithy, role management application) - development of parts or entire solutions in individual customer projects - for example Business Workflow based process management applications, Reports, interface applications (alternative Windows clients for SAP processes like document scan terminals).