C, C++, Java, Pascal, Delphi, Javascript, Mathematica, Ruby, Python, and Assembly Language.
Reverser and Ethical Hacker.

Other non programming areas include AutoCAD, Revit, Vue xStream, Sketchup, Photoshop and After Effects.

Some free tools/papers I developed

Easy File Share
Easy Python Decompiler
Pyinstaller exe rebuilder
Py2Exe Dumper
Reversing Drop Box Client