There are many advantages of DevOps in terms of Technical and Business benefits and they are:
Technical benefits are listed below:
Business benefits:
Newly updated features are fastly delivered than ever before.
More firm working settings
Saves time which can be used to add value (instead of spending time in fixation/maintenance)
If you want to learn DevOps at a deeper level and wish to get certified then check out DevOps Training Course.
And to get an answer to who is a DevOps Engineer, check out this video: