Implementation and support of several modules in CARD/1 GIS Application (www.card-1.com). (C++, MFC, Delphi, Qt, ODBC, FireBird, WinAPI, GIS, Data Structures, Algorithms).

Design and implementation of several BackEnd modules for Oracle CoBrowse product. (Node.js, JavaScript, Java, WebSockets, Async Programming, Spring, Spring Boot).

Design and implementation of DB structure and Backend Modules for Puzl platform. (Java, MySQL, Spring, Spring Boot, AWS).

Design and implementation of several modules in Credit processing system of BelVEB Bank (Belarus) using Pega 7 platform.

Took part in migration of Taxpayer3 system Oracle production database to Oracle Exadata. (Oracle 11g)Took part in definition and implementation of Development Department structure and process workflows.All kinds of administration tasks related with Development Department.

Architecture design and implementation of different modules in File-Online portal (external system for tax declarations submission by tax payers).Architecture design and implementation of different modules in Taxpayer3 (internal system for State Revenues Committee of RA) build on J2EE (EJB3, JSF, Ajax, Oracle, PL/SQL, CouchDB, JBoss4, Tomcat 6.0, Spring).Migration of old State Revenues Committee internal system DB data (Taxpayer2) to new system DB (Taxpayer3) (Oracle 10g).All kinds of technical administration tasks within Taxpayer3 project.Taxpayer3 project Release Management.

System architecture design and implementation of social network system build on J2EE (EJB3, JSF, MySQL, JBoss4, Tomcat 6.0).Design and implementation of several Web Portals based on IBM WebSphere Portal (DB2, Servlets, JSP).Design and implementation of different modules in one complex web application (PHP5, MySQL 5.0, Smarty, SOAP, Ajax).All kinds of technical administration tasks.

Took part in new communication web product system architecture design and development organizing (J2EE, EJB, Struts, RMI, iBatis, JBoss, MySQL, Tomcat 4.1).All kinds of administrative tasks related with development of new features and projects within the bounds of Lycos Mail product.

Working in Lycos Mail project.Development of Lycos Mail Admin site (Java, JSP, XML, XSL, MySQL, MSSQL).Implementation of ActiveX components for Lycos Mail front-end part (Visual C++, ATL).Took part in full transition of Lycos Mail product to Armenia (Java, C/C++, MySQL, MSSQL, SOAP, Lynux scripting).Several other projects in scope of Lycos Mail product

Hardware and software support in all phases of network development and installation under USAID Customs Reform Project.Implementing data conversion during the upgrade of ASYCUDA (Automated System For Customs Data) system (Delphi, SQL, Informix).Software development for Customs Committee, Customs Houses and Points as well as for internal use of Barents Group programmers and trainers (Delphi, Visual C++, Informix).Development and implementation of data load/unload module of Budget Data Claim Forms System (Delphi, SQL Server).

Within the bounds of WebShop project implementation of database-related tasks including database structure and data conversions (Visual C++, Java, MySQL, MS SQL Server, Oracle, MS Access), ASP/JSP-generator development (Visual C++).Web-based applications development (ASP, JSP, MySQL, MS SQL Server, Oracle, Postgree SQL, MS Access).Server/Client applications development (Visual C++, Java).E-Shop templates development (ASP, JSP).

Took part in development and deployment of National Book-Entry System based on three-tiered architecture.Developed and implemented secure network communication modules between Application Server and Client parts using Win Sockets and symmetric cipher algorithm (Borland C++ Builder, Visual C++, Informix).