What is the minimum level of knowledge to work in data analysis/ML?

Question

data mining

I am a Backend web developer with 4 years of experience. Has a higher education, graduated from the department of CIS. For the past six months, I have been interested in the topic of data analysis.
During this time, I studied python3, touched scikit-learn, read the book "Programming the Collective Mind".
At work, in one production project, I implemented simple text classifiers: for spam / not spam in messages and classification of published text. Used Scikit-learn + Flask.
I do this in my spare time from my main job. The activity itself is interesting, so I ask questions in more detail to find out what a set of knowledge/experience should be in order to move into this area full-time.
Saw similar questions on a toaster that were asked over 3 years ago. I would like to update the information.
Thanks in advance for your replies.

Answer 1

There are many possible answers to your question. But if the information already three years ago is outdated for you (although I don’t understand how basic, fundamental knowledge can become outdated. Yes, and more recent versions on the Toaster are in bulk. Oh well), then here’s the latest research on a given topic
https:/ /dev.by/news/kak-izuchit-data-science