AWS architect
Data center, network, and application architectures
Local and Networked File Systems (e.g. NFS, CIFS, AFP, DFS, NTFS, Hadoop)
Virtual/Cloud Environment technologies (e.g. VMWare, OpenStack, CloudStack, Amazon AWS: EC2, RDS, Route53, S3 )
Experience with PHP, Perl , Python and Ruby, mySQL, Cloudstack, Openstack, configuration management (Puppet, Ansible)
Automation technologies and Configuration Management (Puppet, Ansible)
Experience on scm tools like GIT, SVN, CVS
Systems Toolsets and protocols (e.g. SNMP, Nagios, tcpdump,Zabbix, Cloudwatch)
Application Performance and Scaling. (JVM Tuning, Load Balancing, Clustering, Caching with Redis, Memcached, CouchDB, et...