The "go-to" guy with understanding of how any application works on the Operating System, Database and network level. Experience with working on complex issues granted me significant problem solving skills that helped to keep the resolution times to minimal. Specialties: UNIX/Linux Systems and Database Administration. Fast learner in rapid paced environments.

Sr System Admin @ From June 2013 to Present (2 years 5 months) Greater Denver AreaUnix/Linux System and Oracle Database Admin @ Responsible of maintaining mission critical platforms on the Authentication and the Policy side. These platforms consists of 100+ servers with many flavors of Linux and Unix such as Solaris 10, RHEL 5x & 6 and CentOS. Provided UNIX/LINUX & Oracle Administration constently adding new monitors in place for increased visibility. This role requires to be on call and work during holidays/evenings, working with multiple teams (Engineering, Network Operations, platform vendors etc..) to have high reliability systems implemented/maintained. From November 2010 to Present (5 years) Sr. UNIX/Linux System Administrator @ Specializing in Solaris and Linux design, installation, configuration, fine tuning, management, monitoring and performance management using high-end SUN and Veritas products. Highly experienced on performance management and tuning, high availability computing, clustering, disaster recovery , resource capacity planning. Advanced knowledge of Shell and Perl scripting languages. Admin knowledge for MySQL (standalone & cluster) and highly experienced on Psql and Oracle RDBMS Experience on Web page design using Apache, PHP, HTML, PSQL/MySQL Strong knowledge and experience on NAS,SAN,RAID setups Advanced Experience on ZFS,Zones,Clustering (Geo-Non. Geo), ZFS replication From December 2006 to October 2010 (3 years 11 months) AND Tiger Engineer @ Worked over ATM&IP DSLAMs (Provision / Level 1 support), at which more than 500 DSLAM’s were added to the network during this period. The below products are provisioned and supported on-site at Saudi Arabia (STC): 730xATM ASAM, 732x Remote Units, 7302 ISAM • Languages: Shell and Perl scripting, Make, HTML and PHP (customer oriented script solutions) • Operating Systems: Unix-Sun Solaris 8-10,Linux-Red Hat, FreeBSD, OpenBSD, Ms Windows 9x/ME/2000 Server/NT/NT Server, XP • RDBMS: MySQL, Oracle 10g,Psql (scripting, scheduling, maintenance) • Internal Web page design using APACHE, PHP, HTML, PSQL • Experienced on NAS, SAN, RAID setups • Advanced Experience on ZFS, Zones, Clustering (Geo-Non. Geo), ZFS replication, MySQL replication (Lab and Live setup) From December 2006 to May 2007 (6 months)

BS, Electronics Engineering @ Orta Doğu Teknik Üniversitesi / Middle East Technical University From 2002 to 2006 David Kupeli is skilled in: Solaris, Unix, MySQL, Oracle Admin, Database Monitoring, RHEL, CentOS, Linux, High Availability, Perl, Performance Tuning, SAN, Oracle Grid, SoapUI, Wireless, TCP/IP, IP, Linux KVM, JBoss Application Server, Load Balancing, Splunk, NAS, NFS, PCRF, Troubleshooting, Red Hat Linux, LVM, SELinux, Switching, Oracle RDC, SPR, HSS, AAA, OCS, PCEF, F5 BigIP, Switches, Oracle, Network Design, Lync Server 2010, Routers, Databases, Networking, Shell Scripting