Looking for a Blockchain Developer

Our company will be a leader in the Security Token Offering (STOs) space. This also ties in very closely with NFTs. We have trademarked the term "Tokenizing Technology" and soon we will embark in a very large social media marketing campaign. There are two or three leading companies that have developed the platform that we would use. One of them is based 100% on open concept and we need an engineer to build the necessary infrastructure if we choose to run on their platform. The decision of which platform we build off of is a decision our hired blockchain developer would make, not the C suite. Another company we're in talks with has a tokenized crowdfunding platform. If we partner with them, we might white label their technology, which would also require some serious APIs or interfacing. This is an example of the type of work we need, but this is very high level for this introduction to the project paragraph.