Database: MongoDB, Redis, PostGres.NoSQL databases: MongoDB, Cassandra, HBase, Couchbase.Search & log: Solr, Fluentd, Prometheus.Container orchestration: Kubernetes, GKE, Docker.Cloud services: Bigquery, Dataproc, Dataflow, Cloud SQL, Cloud Composer, AWS EMR.Other: Git, Gitflow, Jira, Gitlab, Trello...