1/1/2009 - Today
Research fellow at the dept. of Electrical Engineering, University of Patras, Greece.
 14/2/2007 – 31/12/2008
Bytemobile European Development Center: Software Quality Assurance Technical Lead Engineer [Bytemobile European Development Center Patras Science Park, Bytemobile, Inc. 2025 Stierlin Court Suite 200 Mountain View, California, USA]
 1/4/2006 – 13/2/2007
Participant as a senior programmer in the development of the Greek Army’s project “Unified Personnel Management System” (Eclipse, Java, Oracle) during the military service at the Centre of Information Technology of the Greek Army in the Ministry of National Defence, Athens. - Participant in the design and implementation of a computer domain network in a brigade based on Windows 2003 Advanced Server and Active Directory during the military service.
 3/1/2002 - 31/12/2006
Instance ltd: Co-founder of Instance ltd, Software Design and Development, a company specialized in the design and development of software applications for personal computers and web sites by means of modern software tools and methodologies.
 1/11/2002 – 31/3/2003
Participant in the Greek founded project : ”Penelope: Model’s Creation". An open computer collaborative learning system developed at Electrical and Computer Engineering Department, University of Patras,Greece. A project funded from Institute of Technology of Computers
 1/5/2001- 31/10/2002
Participant in the project "IST -2000-25385- Modelling Space ". Space of idea’s expression, modeling and collaboration for the development of imagination reasoning and learning, Project funded from European Union
 1/4/2000 – 31/8/2001
Participant in the project PENED 99 – ARTIO: Development of a system for the interconnection of heterogeneous industrial networks. A project funded from GSRT (Greek Secretariat for Research and Technology) and developed at the Electrical and Computer Engineering Department, University of Patras,Greece and the Industrial Institute.
 12/10/1999 – 31/3/2000
Participant in the project EKBAN 1,3,-76 : A system for the remote monitoring and administration of industrial devices. A project funded from GSRT (Greek Secretariat for Research and Technology) and developed at the Electrical and Computer Engineering Department, University of Patras,Greece and the Patras’ University Hospital
 1/6/1995 – 31/8/2000
Rhesos ltd: Developer of database management systems for GIS. Programming of GISs, multimedia and internet applications.