The people behind GFOSS
The GFOSS team brings together professionals from different backgrounds — from public administration and communication to software development and linguistics — who join forces to advance open technologies in Greece.
Core team
6 members
Alexandros Melidis
Alexandros Melidis studied Political Science and Public Administration (International and European Studies) at the University of Athens and holds an MA in Mass Communications from the University of Leicester, UK. He is an active member of the open governance movement in Greece and works on applying open technologies and standards to digital public participation.
Kostas Papadimas
Kostas Papadimas (pkst) has been GFOSS’s Content and Community Manager since 2015. He studied Communication, Media and Culture and has contributed actively to open source projects since 2001.
Elena Barka
Elena Barka holds a degree in Sociology from the University of Crete and an MA in Film Studies from the University of Sussex, Brighton, UK. She joined the Open Technologies Alliance in 2019.
Kleio Kazana
Kleio Kazana studied Political Science and Public Administration at the University of Athens and holds an MA in Political Science and History (Political Philosophy and Social Theory) from Panteion University. She has worked in administrative roles and as a journalist in the media. She joined the Open Technologies Alliance in December 2024.
Konstantinos Papadimitriou
Konstantinos Papadimitriou has worked professionally in web development for over 15 years, using open technologies that he also passes on to new users. A graduate in Agricultural Technology from the TEI of Crete, he focuses on quality assurance and process optimisation. He has worked at the Open Technologies Alliance since January 2019, using PHP, JavaScript, shell scripting, MySQL, MariaDB and SQLite, with experience in designing and integrating APIs.
Efstathios Iosifidis
Efstathios Iosifidis started out in Veterinary Medicine before turning to Computer Science, and holds an MSc in “Code Development and Cloud” from the University of Macedonia. He is an active contributor to the open source community, working on projects such as openSUSE, Ubuntu, Fedora, GNOME, Nextcloud, ONLYOFFICE and GNU Health. As founder of the University of Macedonia’s open source group, he promotes its value and use. He specialises in information systems analysis and project management and has been a committed free software user since 2006. His toolkit includes shell scripting, Ansible, Nginx, Java, Spring Boot, Python, SQL and Docker containers. He joined the Open Technologies Alliance in 2025.
GlossAPI team
5 members
Myrsini Ioannou
Myrsini Ioannou studied Applied Mathematics and Physical Sciences at the National Technical University of Athens and holds a Master in Sound and Music Computing from Universitat Pompeu Fabra in Barcelona. She has worked as a Data Scientist and joined the glossAPI team in March 2025 as a Software Engineer, where she develops and optimises natural language processing technologies.
Nikos Tsekos
Nikos Tsekos is an undergraduate Computer Engineering student and developer with a particular interest in Machine Learning applications. He currently works with the Open Technologies Alliance (GFOSS) as part of the GlossAPI team, contributing to data pipelines and applied Machine Learning solutions.
Ioanna Moura
Ioanna Moura is a linguist and a candidate interpreter in Greek Sign Language (GSL). She completed her undergraduate studies in Greek Philology and a master’s in Language Technology at the National and Kapodistrian University of Athens. She has also worked in archival research at the National Hellenic Research Foundation and was a researcher at Istorima. She joined the Open Technologies Alliance in April 2024.
Dimitrios Athanasopoulos
Dimitrios Athanasopoulos is an undergraduate Informatics and Computer Engineering student at the University of West Attica who joined the GlossAPI team through Google Summer of Code 2025. His work focused on maintaining and evolving the original dataset extraction pipeline, and he also helped enrich the repository with more than 5TB of raw open Greek data. In 2026 he returned to GSoC as a Mentor, supervising and managing two new GlossAPI projects.
Katerina Spanou
Katerina Spanou studied Digital Systems at the University of Piraeus. She completed a master’s at the National and Kapodistrian University of Athens in “Digital Communication Media and Interaction Environments”, focusing on Natural Language Processing (NLP) and training machine learning models. She has worked as a data analyst and data engineer, designing and building solutions for processing, analysing and correlating linguistic and quantitative data. She joined the GlossAPI team in February 2026.
Former General Directors
1
Despina Mitropoulou
Despina Mitropoulou completed her BSc (Hons) in Digital Media at the University of Portsmouth, UK, followed by an MSc in Child-Computer Interaction at the University of Central Lancashire. She played a decisive role in establishing GFOSS as a widely trusted organisation in Greece and abroad for over a decade, and she remains an active member of the GFOSS family.
Want to join the team?
GFOSS is always looking for volunteers, collaborators and interns who share a passion for open technologies. Check the open positions or get in touch.