Okan Dolay

Experience

• 

  TELKOTEK Bilisim Teknolojileri San. ve Tic. A.S.

  Jun 2009 - Mar 2011

  ZTE IP-Dslam Field Support Specialist

  IP DSLAM ZTE Bursa Regional Management • ZTE IP Dslam Maintenance & Operation • Ericsson SSG Router Operation & Troubleshooting

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  Reysas Insaat Ltd.

  Feb 2011 - Jun 2011

  ZTE IP-Dslam Field Support Specialist

  IP DSLAM ZTE Bursa Regional Management • ZTE IP Dslam Maintenance & Operation • Ericsson SSG Router Operation & Troubleshooting

• 

  Bilişim Destek Hizmetleri

  Mar 2012 - Nov 2013

  GPRS Operations Support Engineer , Packet Core at Turkcell

  Gprs End-to-End Problem-Solving • To localize the problem (SGSN / GGSN / PCRF / OMM / DNS / RADIUS) • First level of intervention to the problem • Coordinaton with the related groups and escalationHandling inquiries from firms in Corporate GPRS Infrastructure • Establishment of the Ipsec / Gre / L2tp tunnels according to the needs of the customers between Turkcell and the firms. • Improvement of the network established • Immediate response to the problem and providing customer satisfaction Show less

• 

  Turkcell

  Nov 2013 - now

  Administration of Turkcell NFVI(Network Function Virtualization Infrastructure) PlatformDeployment and Maintenance of Unix/Linux Operating Systems ( RedHat , FreeBSD and Debian ) in the Openstack Cloud Enviroment .Deployment and Maintenance CEPH storage clusters Work with multiple vendors routinely for support,feature enhancement and design strategyDefining , automating and monitoring KPIs (Key Performance Indicator) including Python / Bash Scripts and SNMP based countersWriting Ansible Playbooks for automation purposesMonitoring Operating System and Cloud Enviroment with tools such as Nagios , GrafanaUsing SQL , NOSQL databases Using GIT Show less Main Responsibility : • Operation of Turkcell NFVI platform - RedHat Openstack• Data Optimization Operation• Maintenance of Unix/Linux OS ( RedHat , FreeBSD and Debian )• URL, Domain,IP Filtering Process Managament• DPI Infrastructure and DPI Services Operation• CGNAT Logging Infrastructure Operation• Work with multiple vendors routinely for support,feature enhancement and design strategy when required• Defining , automating and monitoring KPIs (Key Performance Indicator) including Python / Bash Scripts and SNMP based counters for the systems that I am responsible Show less

  • Data Network Services Manager

    Feb 2021 - now

  • Expert Telco Cloud Engineer

    Mar 2019 - Feb 2021

  • Expert PS Services Engineer

    Jan 2017 - Mar 2019

  • GPRS Operations Engineer , Central Operations

    Nov 2013 - Mar 2019