You don't have to be a TDD guru to be considered, but you should have the passion to learn what TDD is, besides being a very good C++ developer and living in Israel. Good presentation skills are also nice to have. (we can always make them better, don't worry)
If you're interested, we're hiring. Send an email to royo at sela.co.il and I'd love to talk to you.
If you get in, I will personally train you and make sure you are the best trainer for TDD in C++ in the business (not that there are a lot out there..).