Security Groups, C, Aws Services, Openssl, Route 53, Elb, Route Tables, VPCs, Firewall IPS, firewall technology, Transit Gateway, Network Firewall, Linux operating systems, NACLs, Subnets, BSD

software security , Socket Programming, Unix Shell Scripting, Perl scripting, Software Engineering, C/C++ programming, Unix system-level programming, Multi-threading and synchronization