John Roinos

John Roinos has extensive work experience in the field of software development, system administration, and web development. John is currently working as a Senior Software Engineer at Hack The Box, where they started in January 2022. Prior to this, John worked as a Web Developer at Hack The Box from June 2021 to January 2022.

Before joining Hack The Box, John was employed at Creative People Hellas as a Software Development Manager from February 2017 to June 2021. John also worked at LeaderSys as an Owner / Web Development Manager from March 2014 to January 2017.

John's earlier experiences include working as a Web Developer, where they were responsible for contacting customers, analyzing their needs and goals, designing and developing web applications, and providing website development and support. John gained this experience starting from 2012, though the specific start and end dates are not provided.

Additionally, John has experience in system administration. John worked at Pansystems S.A. as a System Administrator from an unspecified start date in 2011 to an unspecified end date in 2012. Prior to this, they held the same position at Pansystems S.A. from January 2006 to October 2008.

John'searliest work experience dates back to their role as an I.T. Assistant at Athens 2004, where they were involved in hardware installation, network functionality, and troubleshooting from September 2003 to October 2004.

John Roinos attended the University of Piraeus from 2001 to 2008, where they pursued Computer Systems Networking and Telecommunications as their field of study. John did not obtain a specific degree during this period. In August 2012, they obtained the Oracle Database 11g Administrator Certified Associate certification from Oracle Co.