Computer Engineer & Enterpreneurial spirit

I' m Co-founder and CEO of MarbleArts a startup which makes marble a source of light. Excellent Project Manager, troubleshooter and decision maker.

I' m also an alternative and innovative thinker, with excellent adaptability and I learn new things and technologies really quick.

I have excellent developing and design skills, especially for Windows and Web apps. I am currently working at Intrasoft International as the main developer of 3 client products of the company, using Microsoft Visual C++. But I also lead the developing and implementation of the new Data Warehouse solution that Intrasoft provides for its New Computerised Transit System (NCTS) applications.

I have also strong interest to data analysis and big data, therefore I have been participated to online courses to develop this interest. I have a background on predictive models, machine learning, visualization, data cleanup etc.

Volunteering and Mentoring

I am a mentor at New York Academy of Sciences Global Stem Alliance program (GSA). The Global STEM Alliance accelerates STEM learning by identifying the world’s best STEM talent and creating a global network of promising students and noted scientists. The GSA will give rise to a new generation of STEM innovators ready to take on the world’s challenges. During the program period students connect with each other and interact with STEM professionals around the world, they will create and design solutions to the world’s greatest challenges and develop the critical STEM skills necessary for the future of both themselves and their countries.


  • Greek - Native speaker
  • English - Excellent
    • First Certificate in English (Cambridge) June 2002
    • Certificate of Proficiency in English (University of Michigan) May 2012


Various DIY builds with electronics (Arduino), furnitures etc. Reading, digital photography, modelism and much more.


Technical & Other Skills

Organizational and leading skills, as team leader and architect of Intrasoft’s Data Warehouse solution for NCTS. This project was under my responsibility in all its stages. I started it from zero point as a new member at Intrasoft. I was also a Project Manager, team coordinator and writer on various projects on Horizon 2020 with NTUA and especially with Professor Protonotarios, on my academic studies, also on the Egg competition for the Marble Arts idea.

Excellent communication, inspiration and motivation skills at various projects, as in Google’s Online Marketing Challenge, as CEO of MarbleArts and last but not least as coordinator and Project Manager of many consortia for HORIZON 2020 projects.

Excellent troubleshooter and decision maker with great performance under strict time situations. Currently at Intrasoft I do constantly troubleshooting for the applications under my responsibility. I am also an alternative and innovative thinker with solid experience of many technologies and software tools.

Programming Languages:

C++, Java, C, C#, Visual Basic, ASP.Net, PHP, HTML, XML, Silverlight (XAML), Linq, Python


Visual Studio, Dreamweaver, Eclipse


Oracle PL-SQL and Microsoft SQL, using various development tools on both platforms

Operating Systems:

AIX, Windows, Windows Server, Ubuntu Server, Kali linux

Design, Graphics and Animation:

Fireworks, Flash, Microsoft Expression Design, Photoshop

Office and Productivity:

SAP Crystal Reports, Remedy, Atlassian's Jira, Microsoft Visio, Microsoft Project, MS Office, Open Office, Excel Power Pivots

Mathematical Tools:

Wolfram Mathematica, SPSS, data analysis with R


Arduino, Google Analytics, Google Adwords

Managing Skills
Administrative Skills
Organisational Skills
Web Design/Programming
Image Editing
Video Editing

Work Experience

Intrasoft International


Software Engineer at New Computerised Transit System (NCTS) which is the first eCustoms project in Europe. I'm the main developer for 3 client applications of NCTS in 13 European countries using Visual C++.

I'm also the Architect and Implementer of the NCTS Data Warehouse solution of Intrasoft Intl. using Oracle DBs (Oracle Streams/PL-SQL) and SAP Crystal Reports.

Finally I am having constant client communication and I do support and troubleshooting. Under my responcibility, is also the development of training and setup material for customers.


Founder - CEO

MarbleArts is a start-up which makes marble objects a source of light.



Project Manager and proposal editor for National Technical University of Athens, one of the greatests educational institutions in Greece, with Prof. Emanuel N. Protonotarios for various European Projects like Horizon 2020, 5G PPP, etc.



Software engineer in web projects as reservation and content management systems, based on Microsoft technologies such as C#, and MS SQL server.

Ministry of Culture


Worked for an eight month period at the Archaeological Resources Fund of the Ministry of Culture.


Worked on the customer’s technical support and on IT department, focused especially on application and database server administration.


National Technical University of Athens, School of Rural, Surveing and Geionformatics Engineering

PhD Candidate: Pattern recognition and signal processing on geospatial big data.

National Technical University of Athens, School of Electrical and Computer Engineering

Postgraduate Studies: Engineering - Economic Systems MBA
Thesis: Big Data Analytics: Use cases in Public Administration, Economy and Health.

University of Piraeus Department of Digital Systems

Course of Study: e-Services
Thesis: Web application GreenBay

Featured Projects

Google Online Marketing Challenge 2012

Project: Implemented an on-line campaign for Samos Summit 2012 with Google AdWords and Google AdWords Editor, supervisor Dr. Yannis Charalabidis. Our team ranked in the 70th to 89th percentile of teams globally.
Role: Campaign Administrator, Marketing Manager (SEO).

Cybertour Ltd

Project: Android “Driving School” application (2012) is an Android application based on HTML5, JQuery Mobile, SQL Lite, and Java that emulates examination tests for driving school exams.

Role: Software Engineer

“Efarmogiada” Mobile Application Contest

Project: SMS2SQL (2013) is an Android application (service) that sends SMSs based on a phone list stored in a SQL database and also stores received SMSs to a database. The final version of the system will interact with a web or local interface and implement personalized messages based on the sex, age, etc. in a more efficient way than a pure Android app. I also presented the app in an Android app contest with very good reviews. To develop the app I used Eclipse IDE and Microsoft SQL Server.
Role: Software Engineer.

Microsoft Imagine Cup 2010

Project: Designed a web application for collection of electronic devices with use of ASP.Net, C#, HTML, Dreamweaver CS4, Visual Studio 2010, Microsoft SQL Server Management Studio, Microsoft Expression Suite, supervisor Dr. Symeon Retalis.
Role: Software Engineer, Marketing Manager, Team Coordinator.


You can follow me on

Twitter Profile Linkedin Profile Flickr Portfolio

Telephone: +30 694 74 24 532
Email: c [a-t]
Address: Profitou Hlia 59, 14451 Metamorfosi Athens Greece
Download my resume


Participated in various seminars and workshops for developing business, communication skills, leadership etc.

  • edX Certificate - Machine Learning for Data Science and Analytics by Columbia
  • edX Certificate - Enabling Technologies for Data Science and Analytics: The Internet of Things by Columbia
  • edX Certificate - Leadership for Engineers by Delft
  • edX Certificate -The Analytics Edge by MIT
  • Breaking the Ice With Regular Expressions by Code School
  • TEDx Academy
  • Microsoft Unity 3 day training
  • TEDx Academy
  • The Egg seminars on various entrepreneurial subjects

Intel Technology Expert, certified at:

  • Technical & Integration
  • Selling to Business
  • Selling to Consumers


Microsoft Certified Career Conference

Nov 2009 - May 2010

Microsoft Imagine Cup 2010 Training (certified)


Scholarship from State Scholarships Foundation for my performance at the entrance exams of the academic year 2004


Title:Transferability limitations for Covid 3D Localization Using SARS-CoV-2 segmentation models in 4D CT images
Constantine Maganaris, Eftychios Protopapadakis, Nikolaos Bakalos, Nikolaos Doulamis, Dimitris Kalogeras, Aikaterini Angeli (2022)

Title:Evaluating Transferability for Covid 3D Localization Using CT SARS-CoV-2 segmentation models
Constantine Maganaris, Eftychios Protopapadakis, Nikolaos Bakalos, Nikolaos Doulamis, Dimitris Kalogeras, Aikaterini Angeli, presented at PErvasive Technologies Related to Assistive Environments (PETRA) conference (2022).

Title: “3D technologies integration in Internet travel services based on the modern tourist profile”
C. Maganaris, D. Tsikogias, A. Talavari, A. Fotopoulos, presented at eRA-6 International Scientific Conference, Digital Cities Symposium (2011).