Olgun YILDIZ

Senior Software Engineer @Booking.com

Startup FounderITEngineerConsultingWeb DeveloperFounderDatabase DeveloperProduct Manager🔥 Startup Founder✔️ ITSolution Integrator🧑‍🔬 Engineer🧨 ConsultingSystem ArchitectBackend DeveloperFrontend DeveloperQA EngineerProject ManagerComputer engineer

Olgun YILDIZ is a highly skilled Senior Software Engineer at Booking.com, where he applies his expertise in software development and system design to contribute to the company's innovation and growth. He is proficient in various programming languages and has a strong background in developing scalable software solutions. YILDIZ is known for his problem-solving skills, strong attention to detail, and ability to work collaboratively with a team. His role at Booking.com involves not only software development but also continuous improvement of existing systems to enhance performance and user experience.

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Work Background

Booking.comSenior Software Developer

May. 2022Manchester Area, United Kingdom

DefineX-ConsultingITechnologyILabsLead of Development

Apr. 2020 - May. 2022İstanbul, Türkiye

SiemensIoT & Cloud Solution Architect

Jun. 2019 - Apr. 2020Istanbul, Turkey

SiemensExperienced R&D Engineer

Jan. 2018 - Jun. 2019Istanbul, Turkey

EricssonSenior Consultant

May. 2017 - Jan. 2018Istanbul, Turkey* Used Intellij IDEA and Tomcat for application server, git for version control system * Atlassian tools for information sharing and project management * Coded web designed interfaces using Html, Javascript, CSS, Jquery, Angular * Java 8, OSGI, Hibernate, JPA, CDI, Rest Services

Kafein Technology SolutionTechnical Team Lead

May. 2015 - May. 2017Istanbul, Turkey* Supported existing legacy system to provide newly created cases and ensured they were available in the systems in parallel until legacy systems were retired. * Prepared technical, low level design, Code review * Code and support provided through Java, Spring, GWT, Struts, Oracle 10g, Hibernate * Used Rational Application Developer for IDE and Eclipse , IBM Websphere and Tomcat for application server Clearcase for version control system * Used Jira for issue and project tracking * Coded web designed interfaces using Html, Javascript, CSS, Jquery, GWT, Ajax * Transformation project team leader in legacy side.

Kafein Technology SolutionAgile Team Lead

Apr. 2014 - Jul. 2015Istanbul, Turkey* Used agile methodologies for development processes * Code and support provided through Java, Spring, Oracle 10g, Spring Rest, GWT * Used Eclipse , Weblogic for application server, Clearcase for version control system * Used HP Mercury for issue and project tracking * Designed and Implemented new features to Selfcare channel, Dealer portal applications * Re-implement Avea-TurkTelekom and TTnet selfcare channel after their association * Coded web designed interfaces using Html, Javascript, CSS, Jquery, XSL, XML,

Kafein Technology SolutionSenior Software Consultant

Jul. 2013 - Apr. 2014Istanbul, Turkey* Support system for existing intranet for employees, including designing and developing. * Developed and implemented new credit card structure * Designed and implemented credit card structure with the PassoLig * Code and support provided through Java, Spring, Oracle 10g, Spring Rest, Graymound * Used Eclipse , JBOSS for application server, Clearcase for version control system * Used Jira for issue and project tracking

VodafoneSoftware Development Expert

Apr. 2011 - Apr. 2013Istanbul, Turkey* Collaborated with Accenture Italy and Cellfocus of new Siebel CRM software interfaces. Supported existing legacy system to provide newly created cases and ensured they were available in the systems in parallel until legacy systems were retired. * Prepared technical and low level design * Code and support provided through Java, Spring, GWT, Struts, Oracle 10g, Hibernate, Siebel 8.5 * Used Rational Application Developer for IDE and Eclipse , IBM Websphere and Tomcat for application server Clearcase for version control system * Used Jira for issue and project tracking * Coded web designed interfaces using Html, Javascript, CSS, Jquery, GWT, Ajax * Design rule structure for product eligilibility in both Siebel and Legacy systems.

Kafein Technology SolutionSenior Software Developer

May. 2008 - Apr. 2011Istanbul, Turkey* Support system for existing intranet for employees, including designing and developing the Customer Care and CRM system company wide * Code and support provided through Java, Spring, GWT, Struts, Oracle 10g, Hibernate * Used Rational Application Developer for IDE and Eclipse , IBM Websphere and Tomcat for application server Clearcase for version control system * Used Jira for issue and project tracking * Coded web designed interfaces using Html, Javascript, CSS, Jquery, GWT, Ajax * Supported Jenkins integration with current systems and code base. * Implemented the ant build processes for the legacy projects. Manually deployment processes has been changed and prepared for jenkins.

Mag YazilimSoftware Developer

Dec. 2006 - Feb. 2008Ankara, Turkey* Developed new parking software system for US Based company * Developed new music box application * Developed new CMS application * Coded web designed interfaces using Html, Javascript, CSS * Code and support provided through ASP.NET, VB.Net, C#, Microsoft SQL Server

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