There is a list of companies doing compiler work here: https://github.com/mgaudet/CompilerJobs https://github.com/mgaudet/CompilerJobs . I would recommend surve

There is a list of companies doing compiler work here: https://github.com/mgaudet/CompilerJobs https://github.com/mgaudet/CompilerJobs . I would recommend surveying the ones that have openings, gathering the listed knowledge requirements, choosing the ones that come up most often and then learning that.