Personally, I don't need many qualifications to do network optimization, but at least I need to have basic knowledge and concepts about communication engineering and a clear understanding of the operation of mobile networks. And it's not necessarily only people majoring in communication engineering can do it. As long as you are trained, you can generally do network optimization. I have several students majoring in software and computer as interns.
Technology is of course important for online optimization, but the general quality of individuals is also indispensable. For example, down-to-earth, earnest, hardworking and willing to learn. With these qualities, online optimization will be more like a duck to water. These are verified in the PHS and CDMA networks I am doing now.
If the landlord really wants to do online optimization, he hopes to strengthen the technology. After all, it depends on technology for a living, and with the qualities mentioned above, he can basically meet the requirements of online optimization. Come on!