Hello Client @Nice to meet you@
I just understand crux of your project.
I have rich experience with web development using django, React-Express, laravel-vue, Mysql, Mongodb, Codeigniter, WebGL, ...etc in 6 years.
I already check your description carefully and I know what do you want now.
My pros is best Algorithm and strong security.
if you want fair cost and highest quality please contact.
I am ready to work anytime.
I will try my best for you.
regards
Alex