- Delivering large scale, multi-project complex solutions throughout the agile methods from inception to operation (Scrum, sprint planning, estimation, daily stand-up and retrospective)- Execute project with agreed software requirements (cost, schedule, feature listing, functionality, test criteria and acceptance) and stakeholder management. - Actively participated in software development sprints, module tests, debugging and release procedures on a multi-site international software development projects. Producing high quality project deliverable within agile project management principles. - Conforming to client processes, quality standards, software development policies (SOLID, KISS, Clean Code.) and guidelines including GDPR and related acts. - Monitoring code quality with automated QA (Sonarqube, Scrutinizer, Gatling). Mentor other engineers in Architectural design patterns (MVC, MVVM, MVP, …), Test Driven Development, 12 factor Micro services, Message queues or message brokers, RDMS (MSSQL, Oracle, …) and NoSQL technologies (MongoDB, ElasticSearch, Redis,Cassandra,…) - Creative and innovative problem-solving in cutting-edge technologies and software design patterns. - Technical management of multi-disciplinary senior development and architect teams that enhances the re-usability, portability, test-ability and interoperability of Minimum Viable Product.

- Creating and managing robust and reliable data-bus/API gateway (sync data retrieving) with Request-Queue-Processor and Stream Data addressing. - Tracks multi-dimensional events, and trends on critical live systems. - Lead, prioritizes, and resources the work of the Business Intelligence team to ensure the delivery of quick, high-quality business solutions. - Assists business intelligence analysts and data scientists in the development of advanced modeling and simulation for optimization projects and tools development. - Manages business performance, benchmarks the competitor in market place. Develops custom Global Distribution Services for online demand management. - Code reviewing works with development teams, and Airline Platforms (SITA, Amadeus, Aircraft scheduling, airport handling). - Secure code analysis before releasing and publishing phases on Continuous integration and Delivery pipelines.

- To ensure the installation, commissioning and trouble-free operation of Network / Information Security systems.- To follow up the innovations in the field of cyber security technologies, manufacturers and solutions, to prepare and execute customer-specific services and services and to give their approval, including the supervision of RMA conditions.- To analyze the reported problems, to prepare POC test scenarios, to supervise the works. Designing and managing Disaster Center infrastructures, including labor. Archivements : Performance tuning and refactoring back-end services for TAFICS (Turkish Armed Forces Information and Communication System).Creating and maintaining Lawful Interception System for BTK (Bilgi Teknolojileri Kurulu). Run an audit and analyze the Information Systems Lifecycle and Personal Data Security through the Pen Testing, Server Hardening, and Thread Modeling, identity Access Management, DLP, Malware. Check point FW Management, Juniper vGW virtual security appliance administration. Collecting, assessing, reporting and responding to relevant information security threats, alerts and events or abnormal or potentially malicious traffic patterns and making modifications to tactical operations. Refactoring sprint plans for GDPR ready fully automated Data Lakes in GDS standard.

- Mentoring all information systems and sound transportation infrastructure teams in the international affiliates of the institution, including project development.- To follow the technological developments in open source use and application development frameworks and to advise the team to create an application area for changes in line with their goals.- Development of existing projects and new projects within the scope of the R&D center.- Leading software development teams in agile application development and Scrum management, Archivements : Cloud migration of the distributed micro services and modules including their data. Improving very complex legacy micro services for Voice Carrier Back-end (SIP). Developing new features in open-source ERP (OpenAPS including CMS). Fix lots of cross-browser and web-driver issues on current front-end web services and applications. Implementing a high available, high scalable and maintainable middle-ware and back-end products. And also used latest technologies and open source libraries/tools to make the project lifetime longer. Deal with enhance to maintain high volume distributed cache system. Development of several RESTful API for salesforce and payment gateways.Technology Stack : AWS (Amazon Web Services-EMR, EC2, S3, CloudFormation, IAM, CloudWatch-), Groovy 2.0, Spring 3.2, Grails, MongoDB, Gradle, NoSql, Spring MVC 3.1, FreeMarker Template, OpenCMS, AngularJS, jQuery, AJAX, MQ, Ubuntu, Linux, HTML, CSS, Java 6, JUnit, Mockito, Ruby, Selenium, Cucumber, WebDriver, Ivy, Hudson, Tomcat, JSON, IntelliJ, Eclipse, AWS Java SDK, Servlet/JSP, JVM/Jetty, JMeter, Terracotta, Akkaframework, DynamoDB used as NoSQL database. MySQL for RDS.

- To prepare technology planning in accordance with the goals and priorities of the institution and to supervise its execution.- To report the development daily, weekly, monthly and periodically, to design solutions for defects and losses and to provide periodic control,- To solve the possible architectural design and technology operation problems, the workforce, capacity and time losses that will be encountered, the ways of doing business (SoW) and all processes, including the current workflow, with top management units, and to take precise and permanent measures including usage efficiency.Archivements : Performing Digital Transformation of both hardware and software components, including virtualization and cloud migration of services. Planning TCP/IP and SS7 infrastructure capacities, also technology capability. Implementing resource efficiency actions within the Software Legacy Systems(Refactoring Sprint Planning of the middle-ware and back-end services) Building up multiple custom ETLs(Profile, Parse, Transform and Enrich) to stitch and tag the data to categories to refine Business Values or Legal Requirements including ad-hoc full-text search without any cost (changing format) Technology Stack : Microsoft’s Hyper-V, VMware, Solaris Container lDom, HP-UX vPar/nPar and RHELAP(RHEV), HP Fraud Management System, Oracle WebLogic Server, Spring 3, Java 6, Oracle 11g, DbUnit, JUnit, Fitnesse, JMS, TIBCO, Multi-Threading, Colorado FTP, Terracotta, Hibernate, Java security package, JDBC, JConsole, JHat, Eclipse, Swing, Socket, Struts 2, Rails, Ruby, Django, PHP Symfony and Laravel, HTTPS, XML, XSLT, JMock, Emma, UML, CVS

- Establishing the necessary monitoring and reporting methods for the predetermination of problems related to the supported application solutions.- Application problems detection, root cause analysis, finding temporary or permanent solutions or escalation and follow-up to next level solution teams.- Performing technical consultancy duties in design, acceptance and subsequent processes in projects related to new solutions.- To make and implement the necessary follow-up and planning to increase the knowledge, experience and expertise of the teamArchivements : Implementing and maintaining of ABAP applications. Planning, coordinating and monitoring SAP and AutoLine resources. Create/maintaining databases/reports on CDS and KPI’s. Establishing and managing integrations between SAP/Autoline and rest IT legacy systems. Regulating the application intensivity changes in time-beeing, Managing capability of application modules and microservices sizing.Technology Stack : AutoLine (Daimler Crysler, and Mercedes DMS-https://www.kerridgecs.com/page/industries/automotive-aftermarket-software-), CoreData Services, SAP (SD-MM-FI etc.) ALE, EDI, ALV, SmartForms, user-exit, IDoc, dialog programming, BAPI/BADI,

- Periodically checking the operation of Microsoft and Unix-derived operating systems services running on HP and Compaq devices, performing required tests remotely or on-site Microsoft or HP (Both pay rolled with Metis)- ERP, MRP and Specially developed custom installed on these servers to develop effective and permanent solutions for the elimination of repeated and repeated problems in their applications; to perform optimization and tuning operations on installed products,- Making technical presentations on products to customers, managing demo, POC processes, preparing kit lists, specifications writing / interpretation. Training users.Achievements : Implementing (develop services) modules in Struts and EJB, developing complex executive reports with Oracle Reports, preparing test scenarios with JMeter and analyzing database statistic and made some performance tuning(parameter) on TAS (Turk Telecom Central Fault Management System) database and Java side. Design and tuning 3-tier application architecture and develop required Struts tags(custom), business services with EJB, implement complex stored procedures in 150 tables TTS (Turk Telecom Payment System)Technology Stack : PL/SQL, J2EE, Struts, Tiles, Toplink, UML, EJB, OCJ4, Web Services, Oracle Forms and Reports 9i, Jasper, JMeter, Eclipse, JBuilder, CVS

- Infrastructure design and installation of Network and Security products. To carry out the determination and solution of the problem that may occur,- Performing the technical steps of the project, coordinating the establishment and necessary configurations, documentation, checklists etc. create,Achievements : Planning of the Switching and Routing components, Installation and Administration of the Firewalls and IPS/IDS, Executed verifying the thread model and components by developing and implementing test and behavioral driven scripts. Provided elimination support of thread concerns by monitoring and ensuring compliance of standards, policies, and procedures, conducting incident response analyses.Technology Stack : IOS or NX-OS, authentication and authorization technologies (LDAP, Active Directory, Kerberos, RADIUS, CAS, SAML, ADFS, Shibboleth, Duo Security MFA) Cisco ASA and AnyConnect, IPSec VPN, Cisco CSM, HP OpenView, NNM(Network Node Manager)

- To understand the system and project requirements related to the software. To document the identified user and system needs related to the software.- To realize the designs, code developments and debugging required in the software,- Documenting software development steps, technical and designto prepare documents. To prepare the technical test scenario of the software.Achievements : implementing modules in HYS (Hospital Management System), re-creation of PACS (Picture Archiving and Communication Systems), design and develop Client/Server applications on MERNİS (Merkezi Nüfus İdare Sistemi)Technology Stack : Visual Basic 3.0, Borland Delphi 2, PHP 3 and 4(Zend Engine 1.0), Microsoft Jet Database Engine that could read and write Jet (orAccess) 1.x databases, Java, JavaScript, R 0.60 and 1.0, Ruby 1.4 and 1.6, SSH-1 and SSH-2, IMAP, POP3

Duties;- Installing, configuring, managing and maintaining Unix and tobacco systems,- Writing shell scripting system programs, ensuring the operation of database services and reporting.Archivements : installing, configuring, implementing, and troubleshooting for the Unix/Linux based systems. Implement backup & restore (RPO/RTO) - disaster recovery projects related to data layer. Monitoring events/logs, resource utilization, perform server/application audits and health checks, and takes action accordingly within the agreed OLAs / SLAs. Analyze the technical issues on-site and hands-on work to contribute software development teams.Technology Stack : True 64 and Solaris OS (fiber channel and cluster), IBM DB2 9 for z/OS, Oracle 6,2 and 7 (OLAP/OLTP), Sun Spectrum, Delphi, VisualBasic, Perl, Python,

Duties;- To meet the support requests for the problems and other requests that may arise regarding the systems that are running to the customer.- To call the headquarters support request when necessary, or to follow the support requests that have been opened.- Regular reporting and documentation of the work done.Achievements: troubleshooting active/passive network component. Creating, building and maintaining client/server modules. Shell programming in both RISC/CISC architectures. Providing Level 1 and 2 support for application and Database Servers (includes RDBMS).Technology Stack : Digital True64, Novell NetWare, IBM OS2, Windows 3, Directory Server, TCP/IP, SMTP, FTP, Telnet, lettex and Vi, C Compiler