Installation, configuration, administration and support of Linux Servers (RHEL5,RHEL7).Telecom services integration and deployment.Taking the relevant signaling/Connection traces/Troubleshooting.Working in a High Availability Environment with minimum amount of downtime.Creating trace files (Wireshark/Tshark/tcpdump) and troubleshooting network problems.Creating of necessary SS7 configuration for interconnections with the operators’ signaling network.Creating of necessary configuration for interconnecting with the client's Signaling / IP networks.Installation and configuration of Cisco Catalyst Blade Switch 3020Platform commissioning, upgrades and migrations.Integrations with HTTP, SOAP, DIAMETER, SMPP based systems.Working with LVM2 (create, modify, delete logical volumes,groups,etc).Installation,configuration,administration and support of MySQL Servers.Setting ,monitoring and troubleshooting MySQL backups (DB + FS).Security,SeLinux,IPTABLES,etc...Creation of BASH Scripts.SSH server hardening.Setting up system audit monitoring (auditd,pam).Configuring advaned networking (bond,bridges,NetworkManager,static routes).Hardware Setup of HP Based Servers/Blade Platforms/P2000 storages.User and Group Administration (Local)User and Group Quotas, Access Control Lists (Local Accounts)