*Service-Level Objectives (SLI, SLO, SLA, Error Budget, Burn Rate) * Distributed Systems (system/software architectures, micro services, high-availability, elections) * Container Computing (Docker, Kubernetes) * Cloud Services and Architecture (Microsoft Azure, AWS) * Monitoring (New Relic, Kibana, Grafana) * Source Control (GitHub Enterprise, bitbucket) * CI/CD (Jenkins) * Linux (bash, debugging, tuning, performance measuring) * Programming (Python,JavaScript,GO) * Network (Envoy)