Duties: Design and implementation of command-line tools to control Red Hat Cloud based Kafka instances. Merged in Quarkus source tree.

Technologies: Java 17, Quarkus Java framework, Red Hat Cloud Kafka SDK

Duties: Design and implementation of retail store information system.
Performance testing via REST API.
Technologies: Java 11, Postgresql, Micronaut Java framework, REST web-services, Open API, JMeter, VirtualBox

Project planning, project execution monitoring

recruitment (preparation of requirements for vacancies, interviewing)

Communication with the customer.

Preparation of design documentation.

Coordinating of two projects and two development teams.

Cross-functional development team leadership.

Technologies I had deal with:

Java, Spring Boot, REST Web services, Amazon AWS, S3, EC2, MySQL, MS SQL, MongoDb, Hibernate, ElasticSearch.

Other technologies used by teammates in the project:

Ruby, JS, Angular, jQuery, Zabbix monitoring.

Environment: Amazon AWS, Amazon cloud servers (AMI Linux), GitHub, Jenkins, Circle CI, GoCD, Windows, Linux, Docker.

Design and implementation of corporate website for one international company (the company name is under NDA)

Implementation of issue tracking software system

Duties:

Design and implementation of Java framework to collect and process data files from different sources such as (S)FTP, Google cloud storage, Amazon S3, etc.

Also played roles of build engineer and release/deploy engineer.

Technologies:

Amazon AWS, S3, EC2, Java, Resin, REST Web services, Oracle, Hibernate

Google storage API, Google ads, Facebook Rest API,

Environment:

Amazon AWS, Amazon cloud servers (AMI Linux), Solaris, GitHub, Jenkins

Duties:

Day by day management of the team consisting of up to 10 java developers as well as cross-functional scrum team (Java and C++ developers and QA engineers);

Design, redesign and bug-fixing of gambling software running on Videobet slot-machines and on the server side;

Work planning, reporting, meetings, scrum ceremonies;

Projects:

Several project in Videobet mainstream for wide variety of gambling customers having specific hardware, requirements and restrictions from local regulations.

Technologies:

Spring, Java, Jboss, Jetty, Servlets, JDBC, Hibernate, ActiveMQ, OSGI, Oracle, HSQL, JmDNS, JNI, Google Protobuf, TCP/IP

Environment:

Windows 7 dev. PC, Windows XP embedded slot-machines, Linux servers,

Jenkins, Cruise control, Jira, Confluence

Duties:

Design and development of the information systems

Project:

Universal logon service

LDAP based logon service implemented on top of Apache Directory server expanded by embedded java DBMS H2

Technologies:

Spring, Java, JBoss, Jetty, Servlets, Web services, JDBC, Hibernate, JMS, OSGI, LDAP, Active Directory, MS SQL, H2 embedded

Environment:

VPN, VMWare, Remote desktop.

Hudson, Jira, Confluence

Windows XP, Windows 2003/2008 servers

Duties:

Design and development of the information systems

Java projects:

Several Internet related projects.

Customers in different countries USA, Sweden , Canada, Israel, Ukraine.

• Designed, developed and deployed information system for the biggest application service and solution provider in Sweden - Telia. The system itself states for management, event registrations and reporting in several business activities. I.e. municipal authorities, elderly care service, cleaning service, etc.

(Java, PostgreSQL, J2EE, EJB3, JMS, Servlets).

• Designed, developed and deployed information system for Kiev subway depot. (Java/XML/XSLT/JDBC)
• Designed, developed and deployed email delivery monitoring system for one of the biggest mail-list provider located in Canada. (Java/XML/XSLT/JDBC)
• Development of the project management system (J2EE, JBoss, Tomcat, Swing, Oracle, Velocity) for on of the biggest ASP in the USA.
• Redesign and development of the ERP system for a Swedish ASP (JBoss + EJB3, PostgreSQL, Hibernate).

Environment:

WindowsXP, IntelliJ IDEA, SQL Navigator, ERWin, CVS, VSS, Subversion, VPN, Oracle, PostgreSQL, JBoss, Tomcat, Java, Servlets, JDBC, EJB3, JMS

Perl project:

Redesign and bug fixing of the webmail software running on the biggest Ukrainian freemail provider Ukr.Net (http://freemail.ukr.net) (Perl/MySQL)

Environment:

Perl, Apache, mod_perl, MySQL, HTML, XML,

FreeBSD and Linux servers, Linux and Windows workstations, Internet.