Experience in software development about 3 years; Strong knowledge of Java core, production experience with Java EE; Understand design patterns, OOP; Experience designing architecture for multi-component distributed system using Apache Spark and Flink; Familiar with both sql databases (MySql, PostgreSQL) and nosql(Redis, Neo4j, Elasticsearch, Cassandra); Know hot to build stabile asynchronous application; Have a lot of experience with social networks APIs (Facebook, Twitter, Reddit, Youtube); Have experience in creating own Android application from scratch for Play Market;