Aave, and its predecessor ETHLend, were founded by Stani Kulechov. At the time, he was frustrated at the lack of lending applications on Ethereum — and his project was built before decentralized finance even existed.
Kulechov is a serial entrepreneur who went to law school and began programming when he was a teenager. He was an early adopter in the blockchain space. The CEO has said that he wanted to rebrand ETHLend as Aave so the company could offer a wider range of services beyond Ether lending.