Client - Publishing company. Distributed agile team (Bristol, UK and Kyiv). Web based platform with scientific content - articles, journals, books.Tech stack: Java 11, Spring Core/MVC/Boot, Oracle, PostgreSQL, NoSQL (MarkLogic), Hibernate, JPA, JSP, Apache Tiles, JavaScript, jQuery, Tomcat, Maven, Git (GitHub), Bamboo, Docker

Project “LWM2M Server”I designed and developed an automation framework for automation and performance testing of IoT cluster that will support up to 500M online devices.Technologies used: Java 8, Spring (Boot, MVC, Data), Hibernate, MariaDB, TestNG, Maven, Docker.Project “Smart Home Cloud”I built adaptor microservices for cloud to cloud integration with many different vendors like Nest, Honeywell, Amazon Alexa, Philips Hue. Also implemented features for admin server like IFTTT scenarios and role based permissions.Technologies used: Java 8, Spring (Boot, MVC, Data, Security), Hibernate, MariaDB, Redis, MQTT, Amazon (SQS, Alexa Skills Kit), Maven, Gradle, JUnit, Mockito, AngularJS.Project “Virtual agent”I wrote unit tests and refactored code for client app of virtual-agent tool for customer care that automates interactions between organizations and their customers.Technologies used: Java 8, Play Framework, MS SQL Server, JUnit, Selenium WebDriver, Knockout.js.

Support and refactoring of a couple of services written on RoR.

Occasional jobs from freelance exchange websites.