My technical skills are mainly in Microsoft Development tools and techniques, in particular the .NET Framework using both C# and VB.
I also have skills in SQL Database and the Entity Framework, the Microsoft Object Relational mapper for handling Relational data.
I have written interfaces into Accounting Software packages such as Sage, so am familiar with the prnciples and techniques used.
I have written many interfaces to third party systems using a variety of communications protocols.
If you have old legacy systems that need work, I worked for many year with Visual Basic, the precursor to the .NET Framework.