Someone who installs and launch's working nodes for proof of stake protocols as a living. This individual will also configure, write scripts, and test the staking nodes for self-staking and as a validator. They will maintain and monitor the nodes so they are fully operational 24x7.
My best friend is self employed as a Crypto Staking Engineer. He runs multiple mansternodes on different blockchains earning enough passive income to make it his full time career.