New relic, Datadog, Pagetduty, Grafana, Mochajs, Testify,
Ginko, CircleCI, TravisCI, Gitlab Runner, Docker, ELK, Zipkin,
Finagle, Jenkins, Spinnaker, ATLAS, Kubernetes, Istio,
Prometheus, Mesos, DC/OS, Hadoop, R, Spark, Openshift, etc.
Tools
Some of the tools that usually used by engineers. commercial, opensource or both.