Vlad Kosulin Email & Phone Number

Verona, Nj, Us

Verona, Nj, Us

New York, Ny, Us

PROJECTS:Develop new software applications (frontend, middleware, backend) deployed in either CloudFoundry or in AWS (EB, ECS, Lambda).Migrate applications from CloudFoundry to Elastic Beanstalk and ECS.Migrate applications from Cassandra 1.2 (Astyanax) to Cassandra 3 (DataStax), and from Elasticsearch 1.X to Elasticsearch 5.Support existing applications, including production support.Main responsibilities:- manage European offshore development team of up to 15 engineers;- work with product owners and business users on business and technical requirements;- prepare design, testing, and acceptance documentation;- develop code in Java, review code written by peers, enforce best practicies;- report to management.

London, Gb

Main responsibilities:- finish migration of existing Jrun 4/Java 1.4 application to Wildfly/Java 8; refactor the code to get rid of outdated libraries. WildFly server setup, deployment and configuration. Java 8 runtime configuration and tuning. Find and fix bugs caused by migration, including rewrite of some JSP and HTML pages, proprietary JavaScript libraies and XSD, switch from xerces API to JAXP, from other outdated xml libraries, such as JXML (not the JSON one), to DOM, SAX, JAXP, and JAXB API provided by Java 8;- work with BA on requirements analysis, preparation of webservice endpoint definitions (WSDL, API, etc.), webservice coding, definition and implementation of unit and integration tests. Refactoring of existing code to reuse it in webservice environment. Created new servlets and modified existing servlets to serve as JAX-RS endpoints generating both XML and JSON response, created CDI managed beans and MDB to handle asyncronous communication;- design and implement JAX-WS web service client, deployed as part of WildFly web application, for interaction with Thunderhead and OnBase web service providers exposed through WSDL. Created Java client code based on provided WSDL, resolved interoperability issues (the server side is based on Microsoft webservices stack).- maintain Tamino XML databases, including backup and restore procedures for production and failover DB, and some performance tuning;- guide team in transitioning and using Git and TFS 2013.

Newark, Nj, Us

Main responsibilities: AWS software coding, definition and implementation of unit and integration tests, service configuration and deployment, infrastructure problem troubleshooting. Refactoring of existing code. Bug fixing. Processing and fixing of data in production databases.

Main responsibilities: analysis of business requirements in close cooperation with business owner and with accounting department, design and coding of modules aimed at input and processing of inventory data, and generation of scheduled and online inventory reports.

Ch

Main responsibilities: analysis of business requirements in close cooperation with business analysts and representatives of other Chubb departments (system architecture group, database, underwriting, etc), design and coding of modules aimed at processing of agency data and account service authorization process.Prepared physical design specifications, including structural and behavioral modeling of every use-case with UML class and sequence diagrams, prepared database and screen field mapping documentation, participated in preparation of requrements for integration with other corporate systems.Performed coding and unit testing using IBM RAD 7.5 and 8.0.4, IBM JSF and AJAX libraries.Prepared time estimates, mentored other members of my team in best software development and testing practicies, helped them solve problems and identify and fix bugs,

London, Gb

involved in design and development of modules for integration of the Dovetail payment processing solution with SEPA infrastructure. Future development of modules for integration with other clearing systems (SWIFT, ACSS, BACS, EMZ, etc.), and for integration with bank's internal systems, such as accounting, GFC, OFC.Analysis of business requirements, design, and coding (including preparation and implementation of test suites for automated testing) using Eclipse, CVS, Mercurial, ANT, Bugzilla, JIRA, Hudson. Coding involves core Java technologies (networking, multithreading, serialization, XML processing), and Java EE (EJB, JMS, JTA, JDBC), and SQL.Internationalization of previously written modules.Enhancement of web-based GUI for day-to-day payment processing operations using JSP, Struts, JSTL, JavaScript, and proprietary framework.Early morning production support of operations in the JPMC UK datacenter.

Wayne, Pa, Us

Performed analysis of business requirements, design of logical and physical structure, coding, testing and deployment of a Web-based portal for managing of data transfers, execution of data processing requests, and for on-line view and modification of primary data.Using this application, a user, based on assigned permissions and roles, can view and modify various information about client accounts, securities, and transactions, can generate and view reports, execute asynchronous data processing requests, including bulk data adjustments.The portal was implemented with Apache HTTP Server 2.0.x as HTTPS load balancer, cluster of JBoss nodes as Java EE engines, and multiple Sybase 15 database engines for data storage.During analysis and design, used UML, Core J2EE Patterns, MVC, Pipes & Filters. Performed coding of Entity and Session EJBs (stateless and stateful), Message Driven Beans (MDB), Servlets, Filters, JSP to handle HTTPS requests using JavaMail API and JMS for external notifications, JSTL and JSF to separate data from representation, and JavaScript to perform the client side input validation. Used Log4J for logging, XDoclet for code generation.Created on-line reporting facility using JExcel API to dynamically create reports as Excel spreadsheets.Created a data source description file to use Sybase ASE with JBoss before it became the part of JBoss standard distribution.Created Sybase stored procedures and triggers to use with session EJB for complex database manipulations and data validations.Created ANT-based build scripts and JUnit test scenarios; created unit and regression tests for all Java components and Sybase stored procedures. Performed continuous refactoring and testing of the existing code.Compiled, configured and deployed Apache and JBoss clusters.Created the initial structure of CVS repository for this project. Coordinated migration to Subversion.Created project documentation in UML, HTML format, and in TWIKI.

Reading, Gb

Analyzed the architecture and design for existing version 1.0 of the whole system. Participated in preparation of software requirements for the following subsystems: Query Service, User Name Service. Designed the Query Service architecture, including necessary changes to XML gateway, Profile Service, creation of new RMI-based multi-threaded Servlets, and changes to the database schema.Prepared the sample software requirements documentation for Query Service, using Together Control Center and UML, for usage as template by another developers.Developed multi-treaded Java Servlets for processing of XML requests and generation of XML response for Query Service including generation of reports about ACH transactions settlement process and cash clearing. Developed Java stored procedures to implement transformation of SQL query results to XML inside Oracle DBMS using Oracle XDK and XSL.Evaluated SOAP, XML Schema, and ebXML for future modification of external system (currently based on proprietary DTD). Evaluated IBM WebSphere and BEA Weblogic for use of EJB and JMS to resolve performance issues caused by usage of proprietary solution (Java objects in memory collection).Performed refactoring of Query Service according to changed requirements during development.Created Swing application and applet to create and send XML messages to gateway, and to receive and represent the gateway response to QA team member.Represented developers in corporate working group intended to formalize project life cycle based on RUP methodology and on Use-Case driven approach. Participated in development of software requirements documentation templates, and QA templates. Was responsible for development of templates for construction phase and elaboration phase). Participated in planning and control for all the project iterations.Trained developers in OOA&D methodologies, UML, and Together Control Center.Mentored business analysts in applying RUP and Use-Case driven approach.

Ms, Information Systems

Bs, Mathematics