The center I applied at advertised that they were hiring full-time, part-time, and substitute teachers, but after an hour long phone interview, I was informed they were only hiring substitute teachers. Additionally, I was given the phone interview and then unofficially offered the subbing job. A few weeks later was asked to come in and fill out paperwork, at which time I was "officially" offered the job and told the pay rate. As others have mentioned, the pay rate for teachers is set based on education level and experience, the highest of which is about $24/hour with a Master's degree with a TESOL certificate.

I sent a resume from a job listing (which may have been on Glassdoor). I was called very shortly afterwards for an interview. I was interviewed. They checked my references. I was hired. The interview was thorough. They asked a lot of questions about my teaching experience. They really seemed to want an experienced teacher.