I have a PhD in Bioinformatics and have a lot of experience dealing with data manipulation (think DNA, proteins, etc). I am also a researcher, working with ontologies (knowledge representation).
Some of my skills include high fluency in Python and Java. I also know a lot of HTML/CSS, MySQL (especially using Java and/or Python to access and manipulate MySQL databases).
On the side of knowledge representation I use a lot of OWL ontologies.
I am also fluent in TeX and LeTeX.