Design and implementation of Traxpay financial platform and solutions. The platform is based on Java with OSGi (Karaf container), MySQL and MongoDB.Main responsibilities:- DevOps related: deployments - OSGi & DB, scripting, Docker environments for Dev and QA, Jenkins configuration & Pipelines, Liquibase.- Feature design and implementation: backend and utility modules (SFTP connectors, File consumers, Monitoring and Configuration Management, Karaf Cellar cluster environment).- Requirements and interface documentation- Integration testing- Technical Product Owner / Technical lead / code reviews supervising an outsourced team on one of our projects.

Senior software developer / Solution Architect, responsible for customizations and add-ons for the BSCS billing system and BSS solutions in general. Participated in a pre-integration project of BSCS into Microsoft Dynamics 2011 CRM.• Customization of BSCS customer care web client CX and integration into MS CRM. Technologies used: HTML / Java Script.• Extension of BSCS “Order Management System (OMS)” and integration into MS CRM.

Senior software developer responsible for customizations and add-ons for the BSCS billing system. Specialized in customer care and order management areas. Participated as developer and back-office support in BSCS installation and migration forVelcom Belarus (BSCS iX R3 migration).• Implementation lead (team of 6 developers), design and development of “Velcom Information Center (VIX)” web application. The application is the main entry point for Velcom customer service business and is a replacement of in-built BSCS customer care client. Based on Spring Framework with Spring Web Flow and Spring Security; JSF with PrimeFaces used for UI. The application connects via BSCS SOI / CORBA interface to the backend “Customer Management Server (CMS)”. Responsible for prototype creation, internal framework design and support, team ramp-up and coordination.• Source code review and support of developers on various other Java based customizations.• Prototyping, creation and team lead for development of BSCS Batch Execution Engine (BEE) plug-ins. Based on Spring Batch and proprietary Ericsson framework, these plug-ins implement a set of batch processes required by Velcom.• Build and shipment process development and assistance (Rational Team Concert, Ant).• Creation and maintenance of VIX Wiki – ramp up and knowledge sharing platform for VIX developers.

Senior software developer responsible for customizations and add-ons for the BSCS billing system. Specialized in customer care and order management areas. Participated as developer. back-office and on site support in BSCS installation and migration project Avea Turkey (BSCS iX R2 migration).• Implementation lead (team of 3 developers), design and development of BSCS “Add-On Server (AOS)”. The server provides additional or customized customer care services through BSCS SOI / CORBA interface. Based on Spring Framework and EclipseLink as ORM. Responsible for prototype creation, internal framework design and support, team ramp-up and coordination.• Implementation lead (team of 2 developers), design and development of BSCS “CAS Simulator”. This server application is a replacement for the legacy CAS Server of BSCS 6. The server provides TCP/IP interface (proprietary text protocol) to adapt towards CORBA based BSCS customer care server CMS. Based on Spring Framework, Spring Security, is essentially a multithreaded TCP/IP adapter server.• Build and shipment process development and assistance (Rational Team Concert, Ant). Prior to RTC, temporary administration of Subversion source code repository.• On site cutover support, reimplementation of performance critical parts of the solution.• On site performance and robustness test of the three critical parts of customer care solution (web services layer, customer care web client CX, CAS Simulator) using JMeter.

Senior software developer responsible for customizations and add-ons for the BSCS billing system. Specialized in customer care and order management areas. Participated as developer in several BSCS installation and migration projects (Avea Turkey, Cosmote Group, Wind Hellas Greece).• Maintenance and enhancements of MAS / MCH batch processing modules. The modules implement a set of batch functionalities required by customers. Spring Framework with BSCS SOI / CORBA APIs.• Design and development of UBM module – application for massive batch barring of contract services. Spring Framework with BSCS SOI / CORBA APIs.• Development of EVH Plug-ins (C / C++ modules for extending basic BSCS functionality – event based customer notifications, auditing etc.)Presales activities:• Proposed Business Intelligence solution for Cosmote Greece, implemented using SAP Business Objects.

Software developer responsible for design and implementation of interface modules within “Sierra” risk management system, for integration with external systems. Analysis and application of various standard and proprietary financial interface protocols.• Maintenance of “Sierra” risk management system modules. Involved with various FX / commodity / interest rate calculations and DB persistence.• Design, development and maintenance of “SierraLink” / “GL Adapter” middleware framework (in a group of 3 to 6 developers). Project implementation lead on several occasions.• Business level protocols used: FIX, SWIFT, Reuters, GL Net, custom XML messaging, proprietary messaging systems. • Transport protocols / middleware used: TCP/IP, file based, JMS, (IBM WebSphere) MQ Series, HTTP/FTP.• Maintenance of “Cayman” (“Sierra” web based client) J2EE application and back end server applications.• SQL coding and database design in cooperation with the dedicated database development team.• 4 months on site support for Citi Private Banking project in Singapore (configuration, release support, coding, debugging).• Overall list of technologies and languages used: C, J2SE, C++, JNI, J2EE, MQ, JMS. Solaris OS (remotely via Windows workstations). RCS source code control.

Software developer for a Swiss based company. Development and maintenance of “Development Assistant for C” - a C language CASE tool. Maintenance and development of:• Internal C/Text editor, UI and editor macro framework, C language formatter.• Flowcharts module (structured and non-structured), UI and logic.• Software metrics subsystem (UI, charting and logic).• Development of a custom toolbar subsystem for implementation of docking controls, toolbars and windows. Docking algorithms, UI code and integration with other subsystems of the application.Technologies used: C++, C (Borland OWL, MFC), UML with Rational Rose.