Programming Languages:
Python, Pearl, MATLAB, Octave, Prolog, C/C++, Fortran, Pascal, Basic, Arena, Siman, GPSS, Smalltalk, Mathematika
Scientific Software:
NLTK, NumPy, SciPy, scikit-learn, Splus, MS MathCAD, EASY-FIT, MODFIT, IMSL
Databases:
MongoDB, MySQL, Lucene