Have +10 years of professional experience working for a Convergent VoIP Telecommunications System developed by Altice Labs, with current responsibilities ranging from Product management to Client requirements analysis and design.Previously was responsible for the customization and support team.During the initial period, my development tasks have covered almost all components of the system, from development on a web portal front-end (Ruby on Rails), as design and development of real-time SIP/IMS services based on JSLEE standard, SQL design and performance, Oracle PL/SQL development and interfaces for backend provisioning.Experience with Agile methodologies (Scrum, Kanban)Experience with Project management and issue tracking tools (JIRA)+6 years experience with Java development+6 years experience with Oracle PL/SQLGood knowledge of 3GPP IMS architecture and MMTEL servicesGood knowledge of JAIN SLEE standards 1.0/1.1Experience with development of NGN services for Rhino SIP ASKnowledge of IETF standards/RFCs related with SIP, SDP and XCAPGood knowledge of relational database (Oracle)Experience with SQL and JDBCExperience with development of web services (Rest, SOAP)Experience with web server Apache, JBossExperience with MVC web frameworks (Ruby on Rails, Django)Good knowledge of UML and Design PatternsPositive attitudeTeam playerModern board games enthusiast, drone operator and craft beer brewer.