Deniz Ulker (MBA), (MSc), ITILv4 Strategic Leader

Experience

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  Istanbul Technical University

  Dec 1998 - Jul 2002

  Research and Teaching Assistant

  I have been worked at Electrics & Electronic Engineering Faculty. My department was Electronics and Telecommunications Engineering and my specialty was Wireless Telecommunications Systems (GSM, GPRS and UMTS systems).

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  Ericsson Mobility World

  May 2003 - Mar 2004

  VAS Evaluation Specialist

  After completing my military service in Turkey, between August 2002 and March 2003, I have started to work at Ericsson Mobility World (former Crea-World), Turkey, Istanbul as Value Added Service Evaluation and Test Speacialist. I have tested all of the value added services (VAS) of Turkey's biggest and first GSM operator: Turkcell. Job responsibilities include;- Testing VAS services' availability and functionality,- Making consumer perceptions related to tested VAS services,- Preparing monthly VAS service evaluation reports in order to present VAS services' availability and functionality to CEO level of Turkcell,- Making suggestions about how to improve current VAS services usage by Turkcell customers and for brand-new and creative VAS services. Show less

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  T. Şişe ve Cam Fabrikaları A.Ş.

  Mar 2004 - Aug 2004

  Computer and Network Support Engineer

  Gave system and computer support to HQ personnel. Monitoring network traffic and installing new network (Cisco) devices to the remote sites. Configuring network devices for the best network performance. Reporting network traffic diagnostics to the computer support services manager.

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  Avea Iletisim Hizmetleri A.S.

  Aug 2004 - Nov 2007

  Responsible of upgrading current services and platforms, user acceptance testing, installing new platforms and integrating them into the current VAS and charging systems.Leaded various VAS projects. Notable ones are listed below:- Mobile Streaming and Video-on-Demand Platform installation with Huawei,- BlackBerry service's pre-production responsible: Testing and verifying new BlackBerry handheld devices and software versions and also deploying new BES and BIS versions to test platform and performing tests,- SMS content flow management project with E-kolay. New information services enabled and provided to the subscribers.Worked as a team member in the projects listed below:- BSCS-IX integration tests of various services running on SDP and RBT platform,- New 128K SIM Card project and testing new STK applications on this new platform,- Mobile Number Portability (MNP) project,- Digital Mobile Signature project,Administered test systems and weblogic platforms. Show less Responsible of Avea's various Interactive and Portal Value Added Services that are running on production. Worked as first technical contact of these services. Notable services and VAS platforms which were in his responsibility are listed below:- Credit Transfer Service- Avea Chat Platform and Messaging Portal Service- AveaMerkez customer care tool that is used for solving customer problems (AveaMerkez)- Content-based services (SMS Info Packages, SMS Alerts, Logo-Melody Download services)- Bulk SMS and Wappush sending platforms- OTA (Over The Air) platform and customized OTA service of Avea (BenimMenum)- Phonebook Backup service- Push to talk and BlackBerry Provisioning Services- Mobile Multimedia Platform services for 3rd Party companies- Donation services- Sonic MQ messaging bus system administration- M-Government Platform and related services- USSD services (*100# services of Avea)- Avea Web and Web Portal- Mobile Banking, payment and ordering services Show less

  • Senior Value Added Services and Platforms Enabler Specialist

    Jun 2006 - Nov 2007

  • Interactive and Portal Services Specialist

    Aug 2004 - May 2006
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  Turkcell

  Nov 2007 - Apr 2013

  - Worked at Information & Communication Technologies department, Customer Relationship Management unit, Channels Operation team.Job Responsibilities include;- Managing 20+ different Oracle Weblogic servers for 15+ distinct test environments of Turkcell Extranet (Dealer and Call Center) and Internet (Customer Self Service Online Channels) production applications,- Deployment of new applications, troubleshooting, problem root cause analyzing and automatizing deployments to these Weblogic environments.- Integrating Weblogic environments with middleware systems and alarm monitoring tools (HPOV and HP-RUM), monitoring system performance with Wily tool before delivering applications to production environment.- Assuring desired Operation Level Agreements (OLA) with measuring system performance and availability with alarm monitoring tools and applications.- Taking preventive actions and constructing architecture in order to assure high availability and performance for frequently changing test environments. Show less Group: Information & Communication TechnologiesUnit: Customer Relationship Management & Business Intelligence SystemsTeam: ChannelsJob responsibilities include;- Administrating Siebel CRM Application on both production and test environments, which is used for Call Center and Order Management Projects at Turkcell.- Working on Order Management and CallCenter projects that uses Siebel CRM infrastructure. Installing, configuring and troubleshooting of Siebel Enterprise Environments which are used for testing purposes by Quality Assurance team of Turkcell,- Assuring availability of Siebel CRM SFA and Call Center test environments for both company's related departments and call center (Global-Bilgi). - Installing new CRM environments and operating for test team (Making deployment of new releases on CRM SFA v7.8 and v8.0 environments and maintaining service and system availability)- Making service and tariff definitions on test BSCS platforms and giving support to test and operation team of Turkcell about service and tariff definitions,Used technologies;- Oracle Database 9i&10g,- Oracle Siebel CRM SFA and CallCenter platforms version 7.8 and 8.0.x,- Weblogic 9.x and 10 platforms,- Unix and Windows server environment,- Oracle PL/SQL Query language,- BSCS Online Tool and VPE GUI (developed by ATOS),- Microsoft Office Tools. Show less

  • Weblogic Applications Administrator

    Aug 2012 - Apr 2013

  • Siebel CRM Systems Administrator

    Nov 2007 - Jul 2012
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  Garanti BBVA Teknoloji

  May 2013 - now

  Has been working at Data and Platform Administration Unit, Unix Applications Administration team as a Senior System and Application (Middleware) Administration Expert.Job Responsibilities include;- Install, configure and administrating banking applications running on Unix based platforms,- Performance tuning and troubleshooting of these applications and assuring highly-available service platformsUsed Technologies,- Unix / Linux based operating systems,- IBM Websphere (version: 6.1 / 7.0 and 8.5) and Oracle Weblogic application servers,- Apache and IBM web servers,- Performance monitoring tools: Wily,- IP Networking (Firewall, Load Balancer, etc.) Show less

  • Information Technology Operational Process Management Lead Expert at Garanti BBVA Teknoloji

    Jul 2023 - now

  • Information Technology Operational Process Management Senior Expert

    May 2020 - Jul 2023

  • Java Based Unix/Linux Applications (Middleware) Administrator, Senior Expert

    May 2013 - Apr 2020