Our Team
Vasiliki (Betty) Charalampopoulou – CEO
is a geologist, with a specialization in remote sensing, photogrammetry and GIS applications. In 1992, she graduated from the National and Kapodistrian University of Athens and since then, she has been working on research projects in the area of photogrammetry, Earth observation and geoinformatics. Since 2011, she is the CEO of Geosystems Hellas S.A., providing consulting, solutions and services on GIS and WebGIS, photogrammetry and Earth observation applications. As CEO and President she has established methodologies and formulated strategies, gaining many distributions and collaborations. She has also established several international collaborations with EARSC, ESA, CNR, ESA, NASA, ISA, UNESCO, FIG, OGC, etc. and several international universities, local governments and industries, under the framework of collaborative H2020 and Interreg calls participation. In 2012, she established the company’s R&D division and had successful R&D projects under her supervision, with transferability to many industries and countries. She is also responsible for the distribution of roles and responsibilities in the company.
Christos Kontopoulos – CTO
received his diploma from National and Technical University of Athens (NTUA) – School of Rural & Surveying Engineering. His main research interests and areas of specialization lie in the fields of Εarth Observation and remote sensing, GIS, photogrammetry and geospatial data analysis. He has been enrolled in several research projects and research teams, in the aforementioned domains while also presenting a great experience on photogrammetric, LIDAR data analyzing, cadastre and satellite data exploitation projects. His main expertise also include the development of Machine Learning and Deep Learning models for EO data classification and pattern recognition techniques. He has also been involved in several other commercial projects, as a remote sensing and photogrammetry specialist, dealing with the processing and the analysis of multispectral and hyperspectral optical data, UAV data as well as LIDAR and SAR data.
Eirini Marinou – Project Manager
studied at the National and Kapodistrian University of Athens, in the department of Geology and Geo-environment. During her bachelor degree she completed her Bachelor thesis with the title “Geo-radar measurements to accurately locate misshapen linear targets”. Having completed her BSc studies, her MSc degree followed in Utrecht University in the program “Earth Structure and Dynamics” and more specifically in the “Physics of Deep Earth and Planets”. The title of her thesis is “Spectral Element Method used in radar modeling for asteroid imaging application”. Although she obtained a MSc degree in geophysics, she has a special interest in Remote Sensing applications. She has taken part in several research programs within her internship, both at undergraduate and postgraduate level. She has been working at Geosystems Hellas since 2022.
Odysseas Karatzaferis – Project Manager
is a graduate of the National and Kapodistrian University of Athens (NKUA), Department of Geology and Geoenvironment. He completed a thesis project that involved the creation of an online interactive Story Map that includes a historical review of the evolution of the NKUA and provides information about the current faculties, departments and museums of the university. He has also completed his postgraduate studies at the University of Utrecht, in the programme “Geographic Information Management and Applications”. During his postgraduate studies he wrote a thesis entitled “Crosswalk detection for the outdoor navigation of people with visual impairment”, in which he used machine learning techniques to detect objects in high-resolution aerial photographs. In the last 3 years he has organized, composed and continues to teach a series of GIS webinars.
Stavros Chlorokostas – Hexagon Geospatial Solutions Tech Support
has graduated from the School of Rural and Surveying Engineering of National and Technical University of Athens (NTUA) where he also earned his Msc. degree in Geoinformatics. His professional interests are focused on Geographical Information Systems, Remote Sensing and geospatial data management. He has been working for Geosystems Hellas since 2021 and is responsible for the issuing and management of licensing for digital products issued by Hexagon AB.
Christina Lydia Valdesera – Technical Sales Manager
holder of a master’s degree from the Department of Environment & Development of National Technical University of Athens’ School of Rural, Surveying and Geoinformatics Engineering. She graduated from Harokopio University of Athens with experience in Remote Sensing and Earth Observation Applications. Her experience lies in providing integrated geospatial solutions for advanced markets and applications in the fields of Geo-information. She is also interested in environmental sciences and skilled in Geographic Information Systems (GIS). She has been working for Geosystems Hellas since 2021.
Polychronis (Pol) Kolokoussis – Project Manager AI & Data Analysis
holds a Diploma in Rural and Surveying Engineering from NTUA (1993) and a PhD Degree in Remote Sensing from NTUA (2008). His research interests and areas of expertise include: Multispectral, hyperspectral, thermal, SAR, LiDAR etc sensors and (satellite, aerial, ground and underwater) platforms/systems. Acquisition and processing of remote sensing imagery emphasizing in methods and techniques for various applications like change detection, modeling of phenomena, risk assessment for natural hazards and the protection of the natural environment. Development of algorithms and methods for the analysis of remote sensing imagery as well as their integration with GIS. He has shown special interest and has long experience on processing multispectral/ hyperspectral and other remote sensing imagery using machine/ deep learning techniques, object based image analysis and their integration, while he is also experienced in cloud computing and the development of WebGIS applications. He has published his work in several international journals and conferences, and has participated in more than twenty five National and European Research Projects. He is reviewer in a range of international journals of Elsevier, IEEE, MDPI, Wiley, Springer and Sientific Research Publishing as well as evaluator of FP7 and H2020 Earth Observation proposals. He is working at Geosystems Hellas since March 2023.
Efthymios Magkoufis – Geoinformatics & Geospatial Software Engineer
has graduated from the School of Rural, Surveying and Geoinformatics Engineering of National and Technical University of Athens (NTUA). His main interests lie in the fields of geoinformatics, geospatial data analysis and Web-GIS applications development. He has been working at Geosystems Hellas since 2022.
Anastasia Anastasiou – Geoinformatics Engineer, Photogrammetry Expert
holds a Diploma of Rural and Survey Engineering from the National Technical University of Athens. She also holds a master’s degree from the programme “Protection of Monuments” at the School of Architecture of the National Technical University of Athens. She has been involved in the EU project “Hyperion: Development of a Decision Support System for Improved Resilience & Sustainable Reconstruction of Historic Areas to cope with Climate Change & Extreme Events based on Novel Sensors and Modeling Tools” and a series of projects assumed by the Photogrammetry Laboratory of the School of Rural and Surveying Engineering of NTUA as a researcher with the object of the geometric documentation of monuments. She has experience in the field of geometric documentation of monuments, using both geodetic and photogrammetric techniques. More specifically, she has volunteered as an on-site survey engineer at Tenea Project, the excavation project of ancient Tenea taking place in Chiliomodi, Corinth for five consecutive years (2018-2022).
Alexandros Paraskeuas – GIS Junior Engineer
is a Geographer with specialization in geoinformatics and remote sensing applications. He has graduated from Harokopio University of Athens (HUA) in 2022. His main interest is geoinformatics and area mapping. In 2019 he conducted his internship in Geosystems Hellas as technical staff and participated in the project for the creation of an online database of aerial photography for the national land registry. He has expertise in SAR imagery selection and process. He is the project manager for SAR processes in project STABLE.
Giorgos Voskopoulos – Software Engineer
is a graduate of Accounting & Finance from the School of Management & Economics of TEI Piraeus and a final-year student in Information Technology and Computer Engineering majoring in Software at the University of West Attica. He has been working at Geosystems Hellas since 2022.
Anna Papadima – Surveying Engineer, Junior Analyst
has graduated from the School of Rural, Surveying and Geoinformatics Engineering of National and Technical University of Athens (NTUA) and now she is completing her post-graduate studies in the MSc Urban and Regional Planning also in NTUA. Her main interests lie in the fields of geospatial data analysis in GIS, urban planning and the applications of Machine Learning with the use of Artificial Neural Networks. She has been working at Geosystems Hellas since 2023.
Aleksandros Kostaras – Geoinformatics Engineer
has graduated from the School of Rural and Surveying Engineering of Aristotle University of Thessaloniki and holds an MSc degree in “Applied and Environmental Geology and Geophysics from the department of Geology of University of Patras. He has been working within the international program Copernicus Land Monitoring Service about the environmental Land Cover Study using satellites and other datas. Attendance as Field Data Surveyor to Lucas Survey of Eurostat for the years 2015, 2018 and 2022. Plus, he worked for the assessment of Natural Hazards in the territory of the Prefecture of Attica designing and digitalizing of the road network and spatial planning of land uses. Furthermore, he has participated in the study of Cadastral surveying for the creation of a National Land Registry in the remaining areas of the regional units of Evrytania and Fthiotida ΚΤ5-13 (2018-2021), of the Region of Central Greece. He has been working at Geosystems Hellas since 2023.
Olympia Kourounioti – Project Manager at Photogrammetry Division
holds a degree from the School of Rural and Surveying Engineers – Department of Geomatics Engineering and Geoinformatics from the National Technical University of Athens with a specialization in Photogrammetry. Additionally, she has obtained a postgraduate diploma in “Artificial Intelligence and Visual Computing” from the University of Western Attica and the University of Limoges. Furthermore, she is a prospective Ph.D. candidate at the Geospatial Technology Laboratory of the University of Western Attica, focusing on the processing and fusion of multispectral, hyperspectral aerial, and satellite images using engineering techniques, deep learning, and remote sensing methods. She, also, participated as a researcher in the European project “Multiscale Sensing for Disease Monitoring in Vineyard Production.” They have professional experience in surveying, photogrammetric representations, as well as in the management and organization of projects related to Geographic Information Systems. She has been working at Geosystems Hellas since 2023.
Eirini Baltzi – Geoinformatics Engineer
is a senior student in the School of Rural, Surveying and Geoinformatics Engineering of National and Technical University of Athens (NTUA). My main interests include remote sensing, applications in Geographic Information Systems (GIS) and the development machine and deep learning methods. My thesis topic is the study of data augmentation techniques using deep learning models and neural networks. I also have working experience in the field of Telecommunications and specifically in the design and planning of optical fiber networks. She has been working at Geosystems Hellas since 2023.
Giannis Karaparisis
graduated from the School of Production Engineering and Management at the Technical University of Crete. Currently, he is pursuing post-graduate studies in the MSc program ‘Mathematical Modeling’ at the National Technical University of Athens. His primary interests revolve around data science and neural networks. He has been working at Geosystems Hellas since 2023.
Lysander Giannikas – GIS Specialist
is a Geographer specializing in geoinformatics and area mapping. In 2003 he conducted his internship in engineering company “ANYSMA SA”. The scope of his work included digitization of elements from aerial photographs for the national land registry. He has worked in engineering and construction companies as well as the Technical Service of a Municipality. He has been working at Geosystems Hellas since 2023.
Sofia Koukoura – Urban Planner, Geospatial and RS Engineer
is an Urban Planner with a degree from University of Thessaly. In addition, she holds postgraduate degrees in Urban Geography (Utrecht University) and Geoinformatics (National Technical University of Athens). She has worked in Spatial and Urban planning consulting companies. Her professional and scientific interests are urban planning and spatial analysis in combination with the use of Geographical Information Systems. She has been working at Geosystems Hellas since 2023.
Thomas Papakosmas – GIS Junior Engineer
is a Physicist with a diploma from National and Kapodistrian University of Athens (NKUA) since 2018, and also holds an MSc in ”Environment and Development of Mountain Regions” from the National and Technical University of Athens (NTUA) since 2021. His main research interests lie in remote sensing and GIS applications and geospatial data analysis. He has been working at Geosystems Hellas since 2021.
Besjan / Ioannis Bici
is currently pursuing their undergraduate studies in the School of Rural, Surveying, and Geoinformatics Engineering at the National Technical University of Athens . He completed his internship in 2023 as a Remote Sensing Analyst and he possesses a strong interest in the fields of remote sensing and GIS and are dedicated to deepening their knowledge in these areas. He has been working at Geosystems Hellas since 2023.
Nikos Fragkos – Junior Geospatial Engineer
is currently studying in the School of Rural, Surveying and Geoinformatics Engineering of National and Technical University of Athens. His main interests lie in the fields of earth observation and Remote sensing, photogrammetry and GIS. In 2022 he conducted his internship in Geosystems Hellas as technical staff, participating in earth observation projects and creating maps. He has been working at Geosystems Hellas since 2023.
Sofia Fidani – Sales Manager
is an agronomist with specialization in food technology. She graduated from Democritus University of Thrace in 2012 and also holds an MSc in Sustainable Management of the Environment and Natural Resources (Direction: Sustainable Management of Mountainous Watersheds with Intelligent Information Systems and GIS) from the same university. Her field of expertise and main interests lie in geoinformatic applications. Since 2014 she has been working at Geosystems Hellas as a marketing/client manager and technical support operator in geoinformatics, from 2022 working as a sales manager.
Giorgos Daskalopoulos – Communication Expert, Senior Analyst
is a Communication and Marketing Specialist. He earned his bachelor’s degree in Economic Science from Panteion University and holds a master’s degrees in Marketing from Strathclyde University in Glasgow, United Kingdom.Through work experience as a communication specialist and communication manager for two NGO’s, he specializes in creating persuasive copy for websites, emails, print advertisements, press releases as well as in using integrated digital tools such as email, social media platforms, website etc. to communicate the main purpose of the organisation. He has been working at Geosytems Hellas SA since 2023 and is responsible for the company’s communications activities.
Chrysa Arsenaki – Marketing & Accountant Assistant
graduated from the AKMI Vocational Training Institute in 2020 as an Animation Technician – Electronic Graph Designer. She specializes in Autodeck 3D Max and other graphic programs. She has been working at Geosystems Hellas since April 2021.
Erietta Vlachou – Customers & Partners Support
is currently studying in the department of Geology and Geoenvironment of National and kapodistrian University of Athens, since 2013. She has been working at Geosystems Hellas since 2021.