Şahin Şirin Email & Phone Number

Istanbul, Turkey

İstanbul, Türkiye

Vodafone via KafeinDevelopment of billing assurance business processesPerforming data mining for investigatingand reporting cases of revenue lossPreparing risk analysis and mitigation actionsPreparing database queries for possible CRM and Billing issues and revenue / billing assurance check (PL/SQL)Responsible for revenue assurance process in order to prevent revenue leakage and overcharging for mobile serviceAnalysis of new campaigns, services and products and post-production analysis of these productsEnsuring complete testing for coding changes impacting customer facing systems and/or pricing data changes. UAT and Production testing.Identifying improvement opportunities within the department, developing ideas about improvement actions and increasing the awareness of the concept of Revenue Assurance within the CompanyCreating defect and development requests for revenue assurance control systemsCreating up-to-date control points for CRM and Billing Systems (PL/SQL)Support the projects of different units when selected as contact person Automation of work with RPA and UC4.

İstanbul, Türkiye

Turk Telekom CRM Project operational to perform requirements analysis and design in coordination with business unit and development teams for system development requests, To design the interfaces of the applications to be developed To follow and coordinate the analysis and testing process from end to end To support user acceptance tests (UAT) To perform integration tests To handle work pieces in sprints To transfer the requests whose analysis and functional tests are completed to Operations To support the development teams for live environment defects, To ensure that the necessary automations are created by working in coordination with the relevant teams to detect errors and provide solutions

A-SMGCS System Specialist at Istanbul New Airport A-SMGCS project (IGA)Responsible for the implementation and maintenance of Surface Movement Radars and Multilateration Antennas. Rf measurements for both antenna, waveguide and low loss Rf cable like VSWR, return loss and DTF by using VNA and Spectrum Analyser measurements in order to evaluate antenna and image servers for software installation purposes. Furthermore, we connected external systems that we interface, made switch configurations such as setting VLANs and ports, setting routes, checking TCP/IP and UDP connections. radome performance. I have installation experience for both servers and workstations with complex systems which run on Linux OS and used DHCP

Istanbul, Turkey

Supporting the installation and revision of the Turkcell-Ericsson project's base stations in the Marmara regionMonitoring network alarm events, service outasges and network performance deterioration of LTE Network.Provide technical service and support to customer network in LTE RANLTE eNodeb commissioningLTE eNodeb reconfigurationİmplementing network wide CR's as per customer requests.Degradation issues troubleshooting, UL RSSI (External Interference/PIM) checks, configuration change required.Corrective planned works execution.Preventive maintenance activities (backups, periodic equipment healthchecks)On-air of 2G, 3G and LTE areas, all renewal processes in related stations, intervention to alarms and malfunctions, implementation of necessary parameter changes in core networkInstalling Nokia-Alcatel Femto and Airspan LTE FemtoCellRAN and TX incidences troubleshooting.Field Engineers technicall support.

technische Unterstützung

Associate'S Degree, Sivil Havacılık Ulaştırma Işletmeciliği

Engineer'S Degree, Industrial Engineering

Bachelor'S Degree, Yönetim Bilişim Sistemleri - Mis

Master Of Computer Applications - Mca, Mis