Ask HN: Practical advice for finding high-paying software job?

Looking at the BufferApp post, the salaries posted are well above those I hear about locally (in a medium-sized US city). Where should one look to find a job with comparatively high salaries (e.g., locations, industries, specialties, company types)? I think this information is common knowledge in certain circles, but I think it'd be wonderful if you would share your knowledge and experience in this area with HN readers more broadly.