Andrew Camilleri works on BTCPay Server under the handle Kukks. His GitHub profile carries both his name and the handle, and lists the btcpayserver organisation among his affiliations.
The BTCPay Server Foundation's 2019 announcement names Kukks as part of the project's distributed team alongside Nicolas Dorier, r0ckstardev and pavlenex, while making the point that the project is more than those individuals and includes translators, testers, merchants, third-party hosts, designers and educators.
BTCPay Server is MIT licensed and self-hosted. A merchant runs the server themselves, payments arrive directly in the merchant's own wallet, and the software never requires private keys in order to receive, which is the property that makes it a payment processor with nobody in the middle.
Only his public professional role and published work are recorded here.