Hi,
I'm currently a senior software developer/tester working at a small company near Edinburgh, Scotland (Seven Layer Communications Ltd)
I've been using tcl/tk for about 5 years. My background is in Electronics / Manufacturing Automation Systems before moving to the IT side of things developing Manufacturing Systems Solutions using Tcl/Tk and Oracle.
I like tcl/tk very much as I find it is easy to learn and use, the community are very helpful when you get stuck, it's free, it's multi-platform and I have not yet had a problem that I couldn't use tcl to solve..... I'm very much a tcl'er.