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Business Profile

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Web Profile

Dr. Athanassios I. Hatzis has been active in the field of NoSQL databases and semantic web since 2010. He pioneered and implemented associative, semiotic, hypergraph multi-perspective framework for multi-model databases with a mission to build valuable relations and to establish effective communications. For this purpose he founded HEALIS to offer consultation services and training on the use of next generation business intelligence systems and software applications.

Athanassios has been writing programs since the era of Amstrad CPC 464. His passion for coding led him to research and development for a period of ten years in top UK universities. He has a strong background in clinical applications of speech technology and was the initiator and central figure in a UK NHS and EU FP5 funded research projects that were based on his PhD thesis.

In the past Athanassios has been a Health IT Managing Director in the Department of Neurosurgery, University of Athens for four years. He modernized the hospital clinic with a fully operational EMR, clinical decision support systems for chronic neurological disorders, surgical teleconferencing and out-of-hospital clinical monitoring.

He has published both in Speech Technology and Neuro-technology sectors in peer reviewed journals and conferences, he posts articles frequently in several IT blogs and social networks and he has released several open-source projects.

Professional Experience

2009-Present Founder/Independent Contractor
  • HEALIS - Healthy Information Systems/Services
2005-2009 Health Informatics Managing Director
  • Hellenic Neurosurgical Research Centre “Prof. Petros S. Kokkalis”
  • Evangelismos General Hospital, Dept. of Neurosurgery,
  • University of Athens/School of Medicine, Athens, Greece
1994-2004 Doctorate/Post-Doctorate Research Associate
  • Department of Computer Science,
  • The University of Sheffield, Sheffield, U.K


2005-2009, IT manager, Neurosurgical Research Center (€250,000 fund)

The Kokkalis Foundation

2001-2004, Work-package leader and Initiator, OLP (€2,670,000)

Quality of Life and Management of Living Resources, 5th Framework European Program, EC

2000-2003, Principle Investigator, STARDUST (€275,000)

New & Emerging Applications of Technology (UK NHS-NEAT) Program


IT Degrees
  • 1995-1999, PhD Speech Technology, Department of Computer Science, The University of Sheffield, Sheffield, U.K, Research Grade (5 / 5)

  • 1994-1995, MSc, Artificial Intelligence, Department of Artificial Intelligence, The University of Edinburgh, Research Grade (5* / 5)

  • 1989-1993, BSc, Computer Science, Department of Computer Science, Southeastern College, (GPA 3.23 / 4.0)

Music Degrees
  • 2008, Degree of Byzantine Music School of Byzantine Music I.M. Glyfadas

  • 1994, Diploma, Piano music school of Tzenny Protopapa

Military Service

  • 1992, Electronic Fire Commander, Hellenic Navy

  • 1988-1989, First Year Naval Cadet, Hellenic Naval Academy

Software Development Projects

  • 2016-2020 DBAPI-TRIADB, HEALIS

  • 2010-2012 NULON, HEALIS

  • 2009-2010 MEDILIG, HEALIS

  • 2005-2009 NeuroHealis, Department of Neurosurgery, The University of Athens, Greece

  • 2000-2004 STAPTk, Department of Computer Science, The University of Sheffield, U.K

  • 1995-1999 OLTk, Department. of Computer Science, The University of Sheffield, U.K

  • 1995, VAHISOM, Department of Artifical Intelligence, The University of Edinburgh, U.K

Professional Memberships

  • 2006, International Neuromodulation Society

  • 2004, British Computer Society (BCS)

  • 2003, International Speech Communication Association (ISCA)

Field of Expertise

  • Business Intelligence - Analytics
    Databases-DBMS/DW, Data Modeling, Data-mining, HCI, User Interfaces

  • Applications of IT in Health
    Health IT Management, Telemedicine, Brain Computer Interfaces

  • Clinical Applications of Speech Technology
    Alternative/Augmentative Communication, Computer Based Speech Training Aids

Recommendation Letters

Curriculum Vitae

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