I am currently working on Loki, a horizontally scalable, highly available, multi-tenant log aggregation system inspired by Prometheus.
Before I joined the Loki team, I worked on Grafana Alerting in the Alerting team. Our team operated Grafana Managed Alerts and the multi-tenant Alertmanager in Grafana Cloud. I worked on a number of features to improve usability and ease of use, and I have written a number of blog posts on this topic including Grafana Alerting: A beginner's guide to templating alert notifications and Grafana Alerting: 12 ways we made creating and managing alerts easier than ever.
I also contributed to an open-source project called Prometheus Alertmanager. You can read more about my contributions here.