my name is Mohamad Gharishvandi , and i have M.Sc degree in electronics and electrical engineering , also i'm an instructor in many fields and i am currently teaching 4 courses on Udemy about security, networking and web development . also i'm teaching different courses on my we site :

mghacademy.tech

in there also you could find different free posts and lectures along with video courses which provide certificate of completion which are valid in many countries.

also i create different applications and do online one-to-one training on my website as well .