Quote from: ilovecoins2014 on February 20, 2018, 02:23:35 AM

Since my coding abilities are very limited, I want to hire a professional coder who can teach me how to code a simple SPV wallet generating the QR code of a raw unsigned transaction composed of:
. One Sending Address
. Three Receiving Addresses
. Modular mining fees.

The hardest part in making a light wallet is that it needs to get the needed info of current blockchain from somewhere. Electrum solves this by having servers that maintain a copy of the full blockchain

Here is some info of how to make the unsigned transaction and signing it.
http://www.righto.com/2014/02/bitcoins-hard-way-using-raw-bitcoin.html

for generating QR-codes you can use qrencode. It is a simple interface for generating QR-codes.