? Server - Linux and Windows Server
? Cloud Platform - AWS, Azure, DigitalOcean, Google Cloud, Rackspace, Krystal VPS
? Web Server - Apache, Nginx, IIS
? Database Server - MySQL, MariaDB, MSSQL, DynamoDB
? Automation - Ansible, Terraform, Jenkins, Rundeck
? Monitoring and Logging - Nagios, Zabbix, AppDynamics, AWS CloudWatch, ELK Stack,
Prometheus, and Grafana
? Security - Web Application Firewall, Network Firewall, Endpoint Security, IAM, AWS Secret
Manager, Hashicorp Vault
? Version Control - Git
? Container - Docker
? Scripting - Bash
? Compliance - PCI-DSS and HIPAA
? Others - VOIP, Asterisk, Wireless Gateway, PBX, Computer Networking