Central Bank of the Republic of Türkiye – Enterprise Services Modernization
As part of the modernization of the Central Bank of the Republic of Türkiye's enterprise services infrastructure, application development and transformation services were provided for the migration of existing DB2-based systems to a PostgreSQL infrastructure.
Project Scope:
- Migration of application modules using DB2 databases to PostgreSQL
- Adaptation of legacy data access layers to modern application architectures
- Restructuring and development of enterprise service modules
- Modernization of data access and business layer architectures
Technologies Used:
Java, Spring Framework, Spring Boot, Hibernate, PostgreSQL, DB2, RESTful Services, Enterprise Application Architecture
Key Contributions:
- Successful migration of mission-critical enterprise systems to a modern open-source database infrastructure
- Improvements in performance, maintainability, and scalability
- Alignment with modern software architecture standards
Garanti BBVA – Tami Prepaid Card Platform
As part of Garanti BBVA's Tami Prepaid Card Platform, application development services were provided for the development, integration, and modernization of Mainframe-based applications supporting card transactions, ensuring compatibility with modern service architectures.
Project Scope:
- Development of Mainframe applications managing prepaid card transactions
- Integration with the Falcon Fraud Management system for fraud control
- Development of ATM cash withdrawal and deposit transaction services
- Development of P2P money transfer integrations
- Development of credit card Top-up services
- Management of card transaction authorization processes
- Integration of customer SMS notification services
- Development of integrations between Mainframe applications and Java-based service layers
Technologies Used:
IBM Mainframe (z/OS), COBOL, CICS, DB2, JCL, Java, RESTful Services, ISO 8583 Messaging, Falcon Fraud Management Integration
Key Contributions:
- Development and integration of mission-critical prepaid card transaction infrastructure
- Implementation of secure transaction processing through fraud management system integration
- Integration of ATM, card, and digital channel transactions with Mainframe systems
- Support for a high-performance and secure card transaction architecture
Mainframe & Pega Development Services
(In partnership with Softtech)
Application development services were provided for Mainframe and Pega platforms supporting core banking systems.
Areas of Responsibility:
- Development of commercial lending systems
- Development of loan pricing processes
- Accounting and financial integration modules
- International banking transaction systems
- Mainframe-based application development and integration
- Business process development on Pega PRPC
Technologies:
IBM Mainframe (z/OS), COBOL, CICS, DB2, JCL, Pega PRPC
Akbank – Mainframe Application Development Services
Application development services were provided for the development, enhancement, and integration of Mainframe-based applications supporting internet banking, deposit management, and regulatory reporting systems at Akbank.
Project Scope:
- Development of Mainframe applications supporting internet banking transactions
- Development and enhancement of deposit account management modules
- Development of Mainframe applications supporting regulatory reporting processes
- Development of transaction and batch applications integrated with core banking systems
- Development of integration services connecting internal and external banking systems
Technologies Used:
IBM Mainframe (z/OS), COBOL, CICS, DB2, JCL, Batch Processing, Banking Transaction Systems
Key Contributions:
- Development and sustainable operation of mission-critical banking applications
- Improvements in the performance and reliability of deposit and internet banking systems
- Support for the secure and accurate execution of regulatory reporting processes
Oracle Türkiye – Istanbul Metropolitan Municipality SOA Project
As part of the Istanbul Metropolitan Municipality (İBB) SOA Project, application development services were provided for the analysis, development, and integration of J2EE-based enterprise applications enabling users to perform Advertisement Declaration and E-Declaration transactions through web-based channels.
Project Scope:
- Development of Advertisement Declaration and E-Declaration modules
- Development of applications for displaying customer information
- Development of functions for listing, querying, and updating approved and pending declarations
- Development of web-based customer registration and verification processes
- Implementation of Web Service-based data integrations between enterprise systems
- Development of processes for validating customer and address information through institutional systems
- Integration of user information with LDAP systems and support for authentication infrastructure
- Development of reports for enterprise reporting requirements
Technologies Used:
Java, J2EE, JSF, EJB 3.0, ICEfaces, Oracle WebLogic, Oracle Database 10g, Web Services, LDAP, iReport
Key Contributions:
- Support for the digitalization of E-Declaration processes through web-based channels
- Development of digital integrations between citizen-facing and institutional systems
- Integration of registration, verification, and authentication processes with enterprise systems
- Support for secure data exchange between applications through SOA-based architecture
- Contribution to the digitalization of enterprise reporting and operational processes
Yapı Kredi Bank – Open World Project
As part of Yapı Kredi Bank's Card and Merchant Systems, application development services were provided within the Open World Project for the development, integration, maintenance, and production support of Mainframe-based applications supporting credit card and POS transactions.
Project Scope:
- Development of Mainframe applications supporting credit card and merchant transactions
- Development of tariff and transaction applications for POS systems
- Development of services for transferring card authorization information to IVR systems
- Development of card PIN setup services through IVR channels
- Development of data preparation and formatting applications for transferring card and transaction data to DWH systems
- Development of batch applications supporting card campaigns, statement processes, and installment transactions
- Development of online applications for Opet Card brand point transfer processes
- Execution of daily batch processes in test environments and preparation of test environments for operational use
- Analysis of production issues and implementation of required software changes
Technologies Used:
IBM Mainframe (z/OS), COBOL, PL/I, CICS, DB2, JCL, SORT, Batch Processing, Online Transaction Systems
Key Contributions:
- Development and support of credit card and merchant transaction infrastructure
- Development of integrations across POS, authorization, IVR, and card systems
- Support for the operational continuity of online and batch card processing
- Contribution to the operational sustainability of test and production environments
- Problem analysis and production support for mission-critical card applications
Yapı Kredi Bank – Harmoni Project
As part of Yapı Kredi Bank's Harmoni Project, application development services were provided for the maintenance, enhancement, and troubleshooting of J2EE-based enterprise banking applications supporting credit card transactions.
Project Scope:
- Maintenance and enhancement of Credit Card Cash Advance applications
- Development and maintenance of Credit Card Payment interfaces
- Analysis of application issues and implementation of required software changes
- Support for the operational continuity of existing enterprise banking applications
Technologies Used:
Java, J2EE, Enterprise Web Applications
Key Contributions:
- Support for the sustainability of credit card payment and cash advance applications
- Analysis and resolution of application issues
- Support for the uninterrupted operation of mission-critical credit card functions
- Contribution to the maintenance and enhancement of enterprise Java/J2EE applications