Cloud & Virtualization: AWS (EC2, S3, RDS, VPC, IAM, Load Balancing, Lambda, CloudWatch, CloudTrail), Azure, VMware, Hyper-V
Networking & Security: TCP/IP, DNS, DHCP, VPN, VPC, Firewalls, Routing, NAT Gateways, Security Groups, Network Diagnostics (Traceroute, Ping, Wireshark)
Operating Systems: Linux/Unix, Windows Server
Databases: MSSQL, MySQL, Amazon RDS, Aurora
Tools: JIRA, ServiceNow, Wireshark, Git, AWS CloudFormation, Terraform, Ansible
Troubleshooting & Documentation: Cloud & network issues, system errors, database performance, writing SOPs, maintaining knowledge bases