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Backend architect and developer with 10 more years of experience. Most extensively used tools are PHP, Java and PostgreSQL. Strong knowledge of OOP, Data Modeling and RESTful API. Have experience with highload and distributed services from design to implementation and integration stages. Preferred operation system for products is Linux. Have knowledge in cryptography and security. Familiar with JavaScript, jQuery, HTML5, CSS, Bash, MySQL, Cassandra, Tomcat, Apache, Nginx, Gradle, Composer, NPM....