Prometheus - An open-source monitoring system and time series database.
Co-founder and actively responsible for many Prometheus core components.
Silk - A link discovery framework for the Web of Data (Python)
Zeugnis Online - An online report card management application (Python, Javascript)
MindBasket - An online note taking application (Perl, Javascript)
MicroWheels - A 2D top-down car racing game (C++)