Rafal Krajnik

Development and maintenance of applications for IoT. Mostly focused on OMS (open metric system) decoding feature. Used technologies: Java 11, Kotlin, Microservices, Spring Boot, RESTful services, Docker, Kubernetes, Maven, Gradle, Git, Gitlab, Intellij, Jira Methodologies: Scrum

Development and maintenance of applications for integration with logistics providers DHL, Fedex, Hermes, etc. Used technologies: Java 11, Microservices, Spring Boot, RESTful services, Spring Webflux, Docker, Kafka, Kubernetes, GCP, JPA, Hibernate, SqlServer, Maven, Git, Intellij, Jenkins, Jira Methodologies: Scrum

Developing and maintaining backend application for data migration between systems. Used technologies: Java 10, Spring Boot, RESTful services, Spring Webflux, Cucumber, Docker, Kafka, Amazon SQS, JPA, Hibernate, Oracle, Maven, Git, Intellij, Jenkins, Jira Methodologies: Scrum

Developing and maintaining of agriculture and forestry management applications. Used technologies: Java 11, Spring, JPA, Hibernate, Oracle, Apache Wicket, Gradle, Git, Intellij, Jira Methodologies: Scrum

Developing and maintaining web application which is used to grep and deliver logs from different log servers for different applications. Used technologies: Java 8, Spring boot, RESTful services, JMS, Protobuf, Splunk, Couchbase, Mariadb Maven, Git, Intellij Methodologies: Scrum

Developing and maintaining web application which produces a sequence of flights for the Munich and Copenhagen Airport Developing and maintaining web application which manages resources and flights allocation for Copenhagen Airport Used technologies: Java 7, Spring framework, RESTful services, JMS, JPA, Hibernate, Drools, Aria templates javascript framework, AngularJS, Selenium, Fitnesse, Oracle, JBoss AS, Maven, Mercurial, Git, Eclipse, Intellij Methodologies: Scrum

Designing, developing and maintaining web application to support sales and calculates commissions in direct sales Used technologies: Java 6, Spring framework, JPA, Hibernate, Jasper Reports, Selenium, JSP, JQuery, Oracle, JBoss AS, Maven, SVN, Eclipse Methodologies: Scrum Developing and maintaining web application to support document management Used technologies: Java 6, Spring framework, Hibernate, JSP, JQuery, DB2 Database, Websphere AS, IBM Filenet, Maven, SVN, Eclipse Methodologies: Scrum

Developing and maintaining web based application for managing communication between various power suppliers. Developing and maintaining web based application for data exchange between Polish Prosecutor’s Office and various Government systems e.g. communication with Schengen System Used technologies: Java 5, Spring framework, Hibernate, Oracle, Oracle AS, Tomcat, JSP, JSTL, Xml & Xslt processing, DB2 Database, Websphere AS, Tomcat, Maven, Ant, ClearCase, Eclipse