Node.js Bot for Minting NFTs on Opensea drops

I'm looking for a Node.js developer to create a bot capable of minting NFTs on Opensea Drops using the drop's smart contract. The bot should be compatible with multiple blockchain networks including ETH Mainnet, Sepolia, Arbitrum, and other L2s.

Key Requirements:
- The bot should support various NFT minting strategies:
- Minting during public sale
- Pre-sale/whitelist minting
- It should monitor current gas fees, multiplying it by 3 for quicker execution
- The bot should check the total supply and mint accordingly
- Using my own RPC
- Installation and modification should be easy
- A Command-line interface (CLI) no need for web UI

Example contracts for drops can be found here:
- https://etherscan.io/address/0x1aa49fc26c9620135f4c0899d961e5c270bccf79
- https://sepolia.etherscan.io/address/0x2e5f7e5536546300af6727242623593ced7b577a

To create an Opensea drop on testnet: https://testnets.opensea.io/

Ideal Skills:
- Proficiency in Node.js
- Experience with NFT minting processes
- Familiarity with Opensea Drops and its smart contracts
- Understanding of gas fee calculations
- Command-line interface development experience