I've been offered a job at a Chinese company who want me to relocate to Beijing.

Hi, I currently hold an M visa - can I travel on that and then go through the application process for the residency or do I need to apply for a Z? I've been reading up on it all, but it's all very confusing...
Or, can I travel over on an M visa, then apply for a Z whilst there and then convert to residency?
SNM