Project: DealersPortal for dealers and admins of payment terminals. It’s ‘facade’ between real terminals and payment system.Reports, creation/editing of terminals, control of terminals, user management, terminal updates, commissionsRole: lead developer, responsible for all project and team Other team is 2 developersUsed Technologies: AngularJS, jquery, SemanticUI, SPRING (MVC, Security, Core), Hibernate, Liquibase, ApacheMQProject: Freelance ProjectSite for freelancers and their customers. Allow customers to create projects, and hire freelancers for them, rank. There are customers part, and amdin part.I mostly worked on pre-release bugfixes.Used Technologies: Spring (webmvc, security, social), Jetty, Freemarker, YUIProject: Electronic payment system customer siteThe major functions of the customer site are: allow users to register and login, provide their transactions history,online payments options (send/receive payments), user profile management.I worked on moving this site from YUI/FreeMarker to AngularJs and Bootstrap - complete redesign UI layer.Used Technologies: Spring (webmvc, security, social), Jetty, Freemarker, Maven, Bootstrap, AngularJS

Big Internet System for B2B payments around the world (Largest and Fastest-Growing Settlement Network). It’s about 230 000 companies registered.My team and I working on UI layer of this system. Tables, Reports, Graphs, etc.Used Technologies: JSP, Spring MVC, JQuery,

Project: Data VirtualityData Virtuality creates a product which is able to create so called Data Warehouse automatically - the alternative to classical data warehousing. It can provide queries from various data sources in real-time without delay or time-consuming data warehouse implementation. All needed reports can be created and run instantly. Also it analyzes the data usage and data structure and automatically builds a Data Warehouse speeding up the reports. Mostly i worked on UI part.Used Technologies: Eclipse RCP, JBoss, JDBC, MySQL, Postgres, Oracle

Project: ColumbusA Nearshore Development Center (NDC) was established to develop and maintain web-based system ‘Columbus’ designed for online hotel booking. Columbus system provides hotels search and booking functionality across one of the direct or partner brands, through web or XML interface.System contains of several core applications: Shopping App (web site for end-users), Site Mgmt App (administration console) and XML API App. NDC at EPAM provides full cycle delivery services (technical analysis and design, implementation, testing, transition and further support). NDC consists of several development teams applying SCRUM methodology, several projects are executed in a time (e.g. integration with 3rd party payment systems, UI enhancements etc.)When starting NDC Columbus was hosting 50 brands across the globe (several direct brands and numerious partner brands such as eBay, RBS, Amex and others.I worked on bug fixing, development of some new userstories.Used technologies: J2EE, Spring, iBatis, JBoss AS, JBoss Drools, JBoss

STPThe goal of this project is to sort queue of payments by custom criteria. Bank's payment system is generates payments in XML format, and our project checks them by amount of criteria, and then, if all right, send them one queue, otherwise to other. I made completely from scratch: roles\rights subsystem (every role has set of rights, and all menu items or some page blocks are displayed depending on the rights), reports subsystem (based on JasperReports framework), receipts subsystem (recieving from another WebSphere MQ queue and storing receipts for payments), small enhancements in DB, small enhancements in script subsystems, some new dictinaries (tables with CRUD), bug fixingUsed technologies: Spring, JSF, Hibernate, JavaScript, HTMl\CSS, EJB, Ant, MQ, ESB, Jasper ReportsCredit Bureau ConnectorIt's project for Raiffeisen Bank Aval. This application sends and receives encrypted data (about credit history) to PVBKI (www.pvbki.com) by SOAP protocol. Received data is presented by Jasper Report system as PDF file.I worked on most pages, localization, integration (SOAP) subsystem, encrypt subsystem (it was developed with help of IVK security library), roles\rights subsystem (was made from scratch, roles was recieved from LDAP, and rights was stored in DB, menu items and pages blocks are rendered based on right), reports subsystem, some enhancements in DAO subsystem, bug fixing, supportUsed technologies: Spring, JSF, Hibernate, JavaScript, HTMl\CSS, Jasper ReportsCredit eCSpertUnified System of Automating Lending Process. This system generates credit deal, based on data, collected by credit agent, then this deal passes through some verifiers and other bank employees, and sends to Main Automated Banking System. I worked on most pages for client's profile (address, income, outcome, contacts, credit info, insurance, property, credit history, etc)Used technologies: EJB, Hibernate, JSP, JSTL, DWR, JSF, Richfaces Ant, JavaScript, HTML/CSS, XSLT, XML, PL\SQL, JDBC

TeamDev License Server (internal TeamDev project)It's application for generating licenses and activation keys for products, for making reports (sales and downloads statistics), and managing products (versions, prices), resellers, etc, it's deployed in JBoss Server, and used by TeamDev.com site, sales, and director. All pages war written in jsf, there one template for main design, side based on Ajax, created with OpenFaces frameworkMostly I worked on reports part (tables and graphs, graph was draw with help of OpenFaces framework, data for tables was calculated on DB side), all reports part was made from scratch, administrative part (settings for system). Also, i worked on license generation part, refactor (there was a lot of bad code and antipatterns), backing beans for reports pages and administrative part pages, js scripts, and tests (selenium and Junit).Used Technologies: JSF, Richfaces, OpenFaces, Spring, Hibernate, JavaScript, Junit, SeleniumDigiPixArt (http://digipixart.com)E-shop of high-quality hardcopy prints and personalized photo products. Application for site clients. Part of big system written by customerI have developed print on mugs module. I wrote back-end, GUI pages, and writing js scripts. User can choose mug, choose picture, or write some text (and choose font, size, and color of it), and then, move this object (text, or picture) by mug, change size of object, or move it to one or another side of mug. It's works with help of Ajax and JS framework Prototype.Used Technologies: JSF, JavaScript, Prototype, HTML/CSS