Professionally / productively:
- Java: Spring Framework, Google App Engine, Liferay 6.2+, Seam 2.x - 3.x, JSF 1.2 - 2.1, RichFaces, PrimeFaces 5+ with extensions, Hibernate 3.0+ , EJB 3.0, JPA, Maven, Ant, JCO, JRebel, SAP CrystalReports, Apache WAFFLE, integration with Active Directory, Quartz, JVisualVM, JBoss Wrapper, Jasypt, WaveMarker, Lucene
- PHP: PhalconPHP, Blitz, Zend Framework, Yii 1.x - 2.x, Symfony 1.4 - 2.x, Doctrine, SOAP, Protocol Buffers, Smarty,
- databases: MySQL, PostgreSQL, PostGIS, SQL Server, Lucene (GAE)
- servers: JBoss 4.x - WildFly, Tomcat 7, Apache 2.x
- JavaScript - JQuery, Node.js, Angular JS
- HTML5 i CSS3 (WebSockets)
- Other : design patterns, GIT, SVN
- databases: Oracle 11g, NoSQL: Cassandra, MongoDB,
- PHP - engine Sphinx
- Java - Scala, tuning JVM, Hibernate Search
- Scala with Play Framework (Hibernate/JPA),
- Hadoop: MapReduce2, HBase, Hive, Avro, Parquet,
- basic: Apache Spark,