• SCM- Git, GitHub, GitLab, Gogs • CI/CD Server- Jenkins • Build Tools- Maven/Ant • Servlet container- Apache Tomcat • Configuration Management Tools- Ansible • Container Engine- Docker (Docker-Compose) • Container Orchestrator- Docker Swarm, Kubernetes (Helm, Dashboard) • Scripting Language- Bash • Monitoring Tools- Prometheus, Grafana, Kibana, Cacti, Nagios • Load Balancer- Nginx, HAProxy • Web Server- NGINX, Apache • Database Administration- MySql, PostgreSQL • Cloud Platform- AWS (EC2, VPC, S3, EBS, IAM, Route53), OpenStack • Virtualization- VMware vSphere ESXi 6, Proxmox VE, VMware Workstation, Oracle VirtualBox, KVM • Storage- GFS, EMC, NFS, LVM, iSCSI • Linux Server- CentOS, RHEL, Ubuntu • Windows Server: Windows Server 2012/2016/2019