Experience

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  Koçsistem

  Jan 1997 - Jan 1998

  Unix system expert

  - Worked as a system support engineer setting up and configuring Sun-Solaris operating system and various software on Solaris.- Supported very large scale customer when they need help on UNIX systems which include Unisys and SunOs platforms.- Gave advice and support about Unix environment performance tuning.- Installed and configured CheckPoint Firewall security software on Sun servers.- Installed and configured many of Sun Solaris software on Sun platform. - Wrote shell programs to support customer needs on Unix platform. Show less

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  Dhl

  Jan 1998 - Jan 1999

  Solutions architect

  - Worked as an Application solution architech, designing, installing and configuring applications on related DB and platforms. - Involved in numerous projects based on Y2K upgrading on HP-Unix - Gave huge support on both Informix and Oracle databases on Unix platforms - Wrote shell script to automate user processes - Gave on-call support at any time when a user needs help

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  Turkcell iletisim hizmetleri a.s.

  Oct 1999 - Jun 2008

  Manager, billing-collection, oracle&system manager

  Manager (Operating System and DB Team Management) Turkcell . (2004 – 2008)- Got promoted as the manager for Operating System and Database team, with the role of supporting Billing and Charging Department Applications, Operating System and Database- Managing Post-paid and Pre-paid Systems and Databases - Supporting Rating and Billing applications on production environment - Installing, configuring and tuning the OS System and Databases specially Oracle DB - Maintain system performance, and continuously monitoring the Operating systems and databases - Take proactive maintenance to effective use of both life operating systems and databases - Progressively making critical decisions that define a specific direction for a system - Guide team to solve challenges during operation.System Specialist Turkcell İletişim Hizmetleri A.Ş. (1999 – 2004)- Administered core billing and Charging system on Unix (HP-UX, IBM AIX, Solaris OS)- Installing, configuring and tuning the Unix platforms.- Maintain system performance, and continuously monitoring the system and database .- Experience on batch application testing and maintenance's at Tru64 UNIX on Oracle DB.- Support system and application specific projects, which involves preparing prototype of project, testing the project and then setting to production .- Maintain and support to Rating and Billing applications supporting on production server .- Give ongoing support to billing processes. Show less

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  Turkcell

  Oct 2008 - Jul 2015

  Enterprise architect

  - Plan and implement the Technical Enterprise Architecture, including both short and long term strategies for retiring certain legacy systems, integrating existing systems and new systems implementation recommendations - Leadership of architectural alignment implementation to analyst- Refinement, documentation and communication of architectural principles (TOGAF 9.1)- Strong analytic skills, familiarity with legal documents, solid understanding of Information System Area.- Progress to Knowledge management process and maintain knowledge taxonomy and meta model (ITIL V3)- Approves changes to Target Architecture and Migration Plan - Resolve, delegate, track, and evaluate architecture issues- Coordinate Enterprise Architecture operations across the business units - Create and maintain enterprise architecture artifacts/documentation and update the EA Repository with respective to Business, Application, Data Enterprise Architect- Effective collaboration with domain architects from different divisions.- Support to Project Management, provide high level solution - Security and regulatory compliance controls (ISO and SOX)- Give ongoing support to ICT Infrastructure - Ensure an effective Information Systems architecture and architecture compliance of existing / new IT projects Show less

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  Enerjisa

  Dec 2015 - now

  - Responsible for timely and accurate strategic solutions through architectural blueprints, road maps, standards, and guiding principles that are aligned with SOA, TOGAF and ITIL.- Working horizontally across all IT Technology domains as well as Business Applications to identify opportunities for improving efficiency, enhancing quality of services, and reducing cost.- Developing road maps for technology rationalization and enabling use of open source products in various domains.- Responsible for definition of System, Network and Application level Information Technology Solutions and IT Architecture strategy.- Responsible for Architecture Governance.- Responsible for providing technical leadership for new proposals and existing projects inclusive of analysis, requirements definition, architecture, design, validation, implementation, problem identification, and resolution.- Responsible for definition of IT Infrastructure standards, in terms of IT Infrastructure security, monitoring, auditing, project implementation methodology, systems automation, work flow, management and support.- Designed and implemented Network, System, and Storage infrastructure solutions for Transaction processing application.- Produce and maintain a Capacity Plan - Work to proactively provide sufficient IT capacity- Is responsible for monitoring IT capacity levels, comparing actual levels against targets, and addressing shortfalls- Carry out the Process Manager responsibilities for the Capacity Management process- Keep IT management informed about capacity needs- Provide capacity requirements for new or modified IT services- Ensure that there is sufficient capacity to meet service level targets- Maintain an overall understanding of current service capacity and trends- Ensure that performance testing is carried out on new and modified IT services Show less

  • Enterprise Architecture Manager

    Aug 2021 - now

  • Enterprise Architect & Process Manager

    Dec 2015 - Aug 2021