You can find an interview of him conducted by the CNCF here, where he talks about his experience being a contributor. To learn more and interact with him, join our telegram group or signup for all future First Commit updates here.
Prometheus: An open-source systems monitoring and alerting toolkit originally built at SoundCloud in 2012. Now a standalone open source project, maintained independently under the supervision of the Cloud Native Computing Foundation.
Cortex: An open source timeseries database and monitoring system for applications and microservices. Based on Prometheus, Cortex adds horizontal scaling and virtually indefinite data retention. It currently holds the status of incubating project at the CNCF.