Database
MS Excel, MS Access, SQL Server, Oracle, SAP, Lotus Notes, Netezza, Hadoop
Programming
SQL, VBA, HTML, C#, C++, Shell scripting
Tax Tools
One Source Data flow (with extractions), One Source Work flow, One Source General Ledger
Other Applications and Reporting Tools
Power Pivot, MS Visio, MS Project, MS Visual Studio, MS InfoPath, MS SharePoint, Rational Rose, Eclipse, Data Stage, Qlikview, Business Objects, SSAS, SSRS, Rapid Miner, Weka, Tableau