NFT website and minting for opensea or solanart

We are releasing a collection of 10,000 NFTs in one month and are needing a developer for our project. The attributes have been created; we need a developer to generate all of the NFTs with the attributes. We will then need a developer to develop minting through our website to be posted on Opensea. This project has digital and hard asset. The digital assets will be fix price assets and minting. The hard asset will be auction style biding and winner address has to be collected to be able to ship the hard assets to the winner.