- October 2019: Organised a Devoxx4kids event with Utrecht JUG and University of Utrecht
- November 2018: Facilitated Global Day of Coderetreat in Utrecht
- October 2018:
#meetoberfestwith Utrecht JUG; one week, three meetups with exceptional speakers (James Gosling was one of them)
- August 2018: contributed to jhipster-kotlin
- April 2018: Invited to DevoxxUK as Reviewer
- February 2018: Founded Thessaloniki Software Craftsmanship & Athens Software Craftsmanship communities
- January 2018: Joined coderetreat.org as Coordinator
- November 2017: facilitated Global Day of Coderetreat in Utrecht
- August 2017: created International Anniversary & Greek Namedays Chrome extensions, the very first Chrome extensions for anniversaries.
- March 2017: contributed to Jasmine framework some new functionality inspired by
- December 2016: contributed to Mozilla Web Docs
- April 2016: Founded Utrecht Java User Group
- January 2016: percircle listed in Top-100 jQuery plugins by jqueryscript.net
- May 2014: Lightgame Project published at Atmel and hackaday sites.