Hi, I am sure that I can satisfy your requirement perfectly, but I will do my best to become a customer and also developer.
I think python and javascript are going to be the best one of program languages in recent 10 years.
In the era of artificial intelligence, we can build many kind of applications with python.
So, I am an experienced ✔️python , C++, Java, JS✔️ expert with deep learning , machine learning and ✔️cryptography (ECC, Rijindael, SHA3)✔️.
In my opinion, languages above can be used for complex math calculation such as cryptography.
Also, I have good experience with bot dev for chatting.
So, what kind of cryptography do you want?
Based on my skills and experience, I am confident of building your hard project perfectly.
Looking forward to hearing from you.