Is it purely security stuff?
Be fearlessly willing to pick up programming in new languages.
No security knowledge is required.
Security is a backdrop for what we're doing, but not the only backdrop; it is one of two problem domains we're starting out with.
We use security mostly as a venue for systems programming.
What's the second problem domain you're starting out with?
I hope it's to do with graphics/parallelized matrix math sort of stuff.
Is it purely security stuff?