I think you ought to consult a lawyer regarding this somewhat confidentiality agreement. Or you can try asking it in Legal section.
- a crypto expert, who knows either how to develop an ethereum token of a new coin
A smart contract developer to be precise.
Why don't you just hire those people within your country? I don't know which country are you from but if you can then do so. Also, you should add to your qualifications that possessing clarity in English is a must. As we know, communication is important.