Your username is well chosen - Tcl is a very underrated language. I'll wager they engineer rings around their competition. Good luck with the Java. You know it's the new COBOL right?
Tcl may be the best language in the known universe (highly doubt it) but try running a job search for it in linkedin. Then do the same for java.
I'm not the damned CEO you know. I need to think of my own employability/career.
That is the saddest part of our industry. There are so many cool and interesting technologies we'd like to work with, but we can't if we actually want to feed our families.