Java DevOps: Jenkins, Docker, Kubernetes, Ansible, Git, Maven, Gradle, JIRA, SonarQube, Nexus Repository, Artifactory, Prometheus, Grafana, Terraform, Chef, Puppet, GitLab CI, Travis CI, CircleCI, Selenium, ELK Stack, Splunk, AWS CodePipeline, Azure DevOps, Bitbucket Pipelines, JFrog Xray, Harbor, Spinnaker, Bamboo, TeamCity, Octopus Deploy, SaltStack, Rancher, Consul, Vault, Packer, Vagrant, JMeter, Logstash, Kibana, Zabbix, Nagios, New Relic, Datadog, Dynatrace, AppDynamics, Sysdig, Gatling, LoadRunner, CodeClimate, Coverity, Fortify, Black Duck, Sonatype CLM, WhiteSource, Snyk, Twistlock, Aqua Security, CloudBees Core, Argo CD, Flux, Helm, Skaffold, Kustomize, Tekton, Buildkite, Concourse CI, Jenkins X, Semaphore CI, Trivy, Bridgecrew, Codefresh, GitOps Toolkit, Istio, Linkerd, Envoy, NATS, RabbitMQ, Apache Kafka, Mosquitto, ActiveMQ, RocketMQ, Eclipse Paho.