I need a developer for an NFT launch.

I need a developer to create a button on my website where users can mint an NFT with Ethereum. I would also need this NFT to be able to show up on the buyers wallets on opensea.io. I need an experience developer who can help with a successful launch without any possibility of hacking, error or the website going out of service. I also need the developer to be available for at least 4 hours on launch day to ensure a successful launch and to troubleshoot in the event of error.

The 10,000 unique NFTs metadata will be provided.

I need a strong developer with previous successful NFT launches.

I will provide a contract prior to this service. Please no pre-written response, they will be overlooked.