Right, and even if you're not ready to apply yet you can look at the job ad's requirements and nice-to-haves (for instance for a job working on llvm or gcc you'

Right, and even if you're not ready to apply yet you can look at the job ad's requirements and nice-to-haves (for instance for a job working on llvm or gcc you're going to need C/C++) and see how well you fit them.