The experiences you have is great which you can properly channelize via Management course like MBA. But for MBA you need to have any Bachelors Degree. So you have to do a Btech/any degree as you wish in order to pursue MBA.

Apart from this nowadays Data Science is a new craze and it is used in every sector. IIT MADRAS offers a online BSc Program in Data Science. You can do this course. The course will give you a proper exposure as well as a IIT tag which will help you upgrade your job profile. Now as this is a online degree this will help you to work alongside. And after completion of these you may appear for MBA (if you want else you have plenty of jobs in this field).

TO know more about the IIT MADRAS program you may visit the link below:

https://onlinedegree.iitm.ac.in/

I hope my answer helps. All the very best for your future endeavors!