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Team of Experts

  • Efstratios Giannopoulos

    Senior Software Engineer

    Efstratios Giannopoulos

    Senior Software Engineer


    Efstratios Giannopoulos is a graduate of the department of Computer Science and Technology of University of the Peloponnese and holds a Master’s degree on “Advanced Telecommunication Systems and Networks” from the department of Telecommunications Science and Technology of the same institute. His professional software engineering carrier started in 2012, working as a freelancer developing applications for the University of Athens and specifically in the project of Plato Academy, focusing on geospatial data management applications and location-based services. Since 2013 he is employed by CITE SA as a software engineer, working mainly on .Net ecosystem, on the development of cloud-based web applications. He has good knowledge of object oriented languages (c #, java, C++), relational databases (MSSQL, MySQL, PosgtreSQL), web application frameworks (jsp, asp .net mvc), and web technologies (JS/CSS3/HTML, jQuery, bootstrap), as well as internet and security protocols (e.g. SAML, OAuth etc).
  • Diamandis Tziotzios

    Senior Software Engineer

    Diamandis Tziotzios

    Senior Software Engineer


    Tziotzios Diamantis is a graduate of Department of Electrical and Computer Engineering at Democritus University of Thrace (DUTh). During his time in CITE, he’s mainly implementing mobile applications for iOS and Android platforms (Java, Objective-C). Apart from that, he’s also implementing Backend Services (C#) and Web UIs (JS, CSS, HTML). His interests, among others, include fast cars, basketball games, tennis and Nerf Wars at the office.
  • Panagiota Koltsida

    Senior Software Engineer / Researcher

    Panagiota Koltsida

    Senior Software Engineer / Researcher


    Panagiota Koltsida is a senior software engineer / researcher, graduated from the Department of Informatics and Telecommunications of National and Kapodistrian University of Athens and she has also received a M.Sc. on Advanced Information Systems from the same department. She has been working for more than 10 years in several research projects on behalf of National and Kapodistrian University of Athens, the Athena Research and Innovation Center and CITE: Diligent, D4Science, iMarine, EarthServer, Blue Bridge, RDA Europe and CAPSELLA. She is experienced in managing all stages of large scaled distributed software implementation, starting from requirement’s analysis, up to design, builds, deployment and testing. She has been the technical manager of the ATHENA research team in the EarthServer and Blue Bridge projects and is currently the technical manager of the CAPSELLA project. Her research interests include Information Retrieval systems, Data and Metadata Management and Web Information Systems and her technological expertise includes Java, XML and web related technologies.
  • Spyros Boutsis

    Senior Software Engineer

    Spyros Boutsis

    Senior Software Engineer


    Spyros Boutsis is a Senior Software Engineer, graduate of the Department of Informatics and Telecommunications of the National and Kapodistrian University of Athens with degree on Information Systems. He holds an MSc degree on Advanced Information Systems from the Department of Informatics and Telecommunications of the National and Kapodistrian University of Athens. Since 2006, he has been engaged, as a software engineer in the University of Athens, designing and implementing modules of a large scale distributed system for managing digital libraries, in the context of the “DILIGENT”, “D4Science” and “D4Science II” research projects. Currently he is employed as a software engineer by CITE S.A., designing and implementing service modules and user interface elements of web applications running on the cloud. He is experienced in Java, .Net and PHP ecosystems as well as JS/HTML5/CSS3 frameworks. His experience covers designing and developing IT systems based on the service oriented architecture (SOA) paradigm, as well as building web applications utilizing modern web technologies and frameworks.
  • Panagiotis Tritakis

    Branch Manager / Senior Software Engineer

    Panagiotis Tritakis

    Branch Manager / Senior Software Engineer


    Panayiotis Tritakis attended the Computer Engineering and Informatics Department at the University of Patras graduating on 2005. From 2006 and up to 2013 he taught various classes at the Department of Nursing (University of Peloponnese) and the Department of Information Technology and Telecommunications (Technological Educational Institute Of Peloponnese) on an extensive range of subjects including programming, database systems, software design and development and theoretical informatics. Since 2014 he has been working at CITE as a Senior Software Engineer. He is very much interested in all aspects of software development with an emphasis on design and programming. Having (both by choice and by requirements) used many programming languages (C, C++, Java, Visual Basic .NET), he is most proficient with C# and JavaScript and has extensively used technologies and libraries like .NET, ASP.NET MVC, jQuery and Highcharts.
  • Olga Sidiropoulou

    Systems Design & Usability Engineer

    Olga Sidiropoulou

    Systems Design & Usability Engineer


    Olga Sidiropoulou is a graduate of the Department of Product and Systems Design Engineering at the University of the Aegean (2013). Her academic courses extended from history of art, and graphic design to virtual reality and artificial intelligence. She has majored in Human - Machine Interaction (HCI), composed a thesis on Information Architecture methods in e-commerce and has particularly specialized in the field of user experience design. She has mostly worked for custom software producing companies such as Out of Bounds (2011) and currently for CITE S.A.. Through constant training on the ever-evolving field of user experience and information technology she frequently attends seminars and conferences regarding new technologies (e.g. Unity 3D, Drupal 8) and user experience methods (e.g. Gamification techniques). Her experience covers the following sectors: Design of User Experience and User Interface on large scale software from conception to implementation, Optimization of User Experience and User Interface on already functional software, Web design and website development, Game Design, 3D modeling, Animation, Graphic design. She has participated through CITE S.A. in a number of large scale projects: Academy of Plato, EarthServer2, BlueBRIDGE etc.
  • Lefkothea Katsina

    Software Engineer

    Lefkothea Katsina

    Software Engineer


    Katsina Lefkothea has graduated from Informatics and Telecommunications Department of National and Kapodistrian University of Athens. Recently she started her collaboration with CITE, working as a Software Developer. She is fluent in C,C++,Python and Android environments as well as on internet technologies and PHP/JS/HTML5/CSS3 frameworks.
  • Vassilis Floros

    Software Engineer

    Vassilis Floros

    Software Engineer


    Vassilis Floros has graduated from the Computer Engineering and Informatics Department of University of Patras in May 2014. He has been working for C.I.T.E. S.A. as a Software Engineer since the beginning of 2015.The programming languages he's most familiar with are JAVA, C# and JS, more specificallly the frameworks and technologies he uses are SPRING MVC, HIBERNATE, LIFERAY, ASP.NET MVC and JQUERY.
  • Tasos Tsalamandris

    Operational Researcher

    Tasos Tsalamandris

    Operational Researcher


    Graduated from the Department of Business Planning and Information Systems and holds a Master degree in Techno-economic Management of Digital Systems at the University of Piraeus. He started his career as a teller at ATE Bank learning the Management Information System (MIS) in the banking sector. The working experience he gained at the sales sector and the field of Marketing- advertising, as well from the workplace of Informatics and the telecommunications, helped him cultivate the communication strategies needed for an effective interaction with clients, reaching agreements for the benefit of each undertaking. He then worked at the e-Government Social Insurance at the department of technical support and the web application development. During his term there he specialized in the techno-economic analysis of insurance programs of the company. Finally his certification in Financial Accounting from the University of Athens served to expand his intellectual horizons on issues concerning the payroll, using the payroll software Epsilon net.
  • Konstantinos Apostolopoulos

    Software Engineer

    Konstantinos Apostolopoulos

    Software Engineer


    Konstantinos Apostolopoulos is a Software Engineer, graduate of the Department of Informatics and Telecommunications of the National and Kapodistrian University of Athens. In CITE he has been mainly involved with the design and implementation of knowledge management systems, like the Scarabaeus Platform and FeMME, a metadata management engine implemented in the context of EarthServer-2 research project. His interests and expertise include programming languages, technologies and frameworks in the full-stack spectrum, from datastore technologies like SQL and NoSQL databases, REST web services and other web related technologies, to front-end technologies like HTML5, CSS3, JavaScript and respective frameworks.
  • Nina Loxou

    Accounting Assistant

    Nina Loxou

    Accounting Assistant


    Nina Loxou worked briefly in the Hotel Industry and later in a commercial company as a Marketing Executive. The next three years she worked for a Consulting Company as an accounting assistant and was also responsible for the implementation of the company’s NSRF program. She joined CITE in May 2015 as an accounting assistant. She is a member of the Economic Chamber of Greece since 2011 as an accountant and an economist. She graduated from the Department of Business Administration of Patras University and has a Master’s Degree in Service Management from Athens University of Economics And Business.
  • Ermis Ioannidis

    Software Developer

    Ermis Ioannidis

    Software Developer


    Ermis Ioannidis is a junior software engineer with professional experience in implementing commercial information technology projects. He has participated in the implementation of web applications. As a developer he has experience in the full stack of web application development. He has successfully implemented user interfaces and web services. He is an undergraduate of the Department of NKUA’s Informatics and Telecommunications. His experience as a developer spans to both server side and client-side technologies such as Microsoft .Net, Java, C#, C, typescript, AngularJS, javascript, html, css, bootstrap, xml and SQL with several RDBMs (MS SQL Server, PostgreSQL, MySQL etc).
  • Panagiota Papagianni

    Software Developer

    Panagiota Papagianni

    Software Developer


    Graduate of the department Of Computer Engineering And Informatics of the University of Patras and holder of a master’s degree on “Computer And Science Technology” in “Applications And Foundations Of Computer Science” in the same department. Has worked for three years as a computer engineer at “Knowledge” company located in Patra. There she developed web applications and participated in research programs which use Machine Learning Approaches. She has knowledge of programming languages (Groovy, Python, Java, Php, Javascript), databases (Oracle, MySQL, MongoDB), web technologies (html, css, bootstrap), ElasticSearch Engine and NodeJs tool.
  • Anna Papachristou

    Software Engineer

    Anna Papachristou

    Software Engineer


    Anna Papachristou is a junior software engineer and a senior student of the Department of Informatics and Telecommunications of NKUA’s. She is experienced on JavaScript, Typescript, Angular, HTML, CSS, Sass, Bootstrap and she is familiar with SQL, C, C++, Java, Pyton and Android. During her studies she has taken part on the development of three web and one Android applications.
  • Marios Radis

    Software Developer

    Marios Radis

    Software Developer


    Marios Radis is an Electronic engineer. Currently he is employed by CITE as a Software Developer where he is mainly involved in web applications, programming in languages such as C#, Javascript, Typescript, SQL. He graduated from the departement of Electronic Engineering of TEI CRETE and worked as a Mechatronics Technician for many years in various working environments and technologies.
  • Georgia Alloimonou

    Software Developer

    Georgia Alloimonou

    Software Developer


    Georgia Alloimonou is a graduate of the Technological Educational Institute of Peloponnese at the Department of Computer Engineering. She has knowledge of programming languages HTML, CSS, Javascript, PHP and is familiar with MySQL and CMS platforms such as Drupal 8 .
  • Sotiris Sotiropoulos

    Software Engineer

    Sotiris Sotiropoulos

    Software Engineer


    Sotiropoulos Sotirios is a graduate of Computer Science Department (CSD) at University of Crete (UOC). He is employed by CITE as a Software Developer currently working on the Cloudroll project.
  • Georgios Kolokithas

    Software Engineer

    Georgios Kolokithas

    Software Engineer


    Georgios Kolokythas is a Software Engineer. Currently he is employed by CITE as a Software Developer where he is mainly involved in web applications, programming in languages such as C#, Java, Typescript, SQL. His interests also include game development and design as well as mobile technologies.
  • George Kalampokis

    Software Developer

    George Kalampokis

    Software Developer


    George Kalampokis is a graduate of the Informatics Department at the Athens University of Economics & Bussiness, and has started working with CITE as a software developer. He has an academic background on object-oriented programming and has worked with a number of technologies such as Java, C, C++, C# with .NET framework and Windows forms, as well as HTML / CSS / Javascript. In his free time he works on the Classic RBDoom 3 BFG and the development of the Open Platform library, which aims to make game development across online platforms easier.
  • Nikolaos Papazian

    Software Engineer

    Nikolaos Papazian

    Software Engineer


    Nikolaos Papazian has graduated from the Department of Electronic Computing Systems Engineering. He recently started working with CITE as a software engineer. He is familiar with the languages and technologies related to these (java, c #, angular, sql, html, css, bootstrap, spring framework, jpa (hibernate), asp.net etc.). Android and Web app development.
  • Elias Mantzoros

    Software Developer

    Elias Mantzoros

    Software Developer


    Elias Mantzoros is a graduate of the Technological Educational Institute of Peloponnese at the Department of Computer Engineering.During his studies he used C Programming Language for the various tasks required by his studies (representations of large graphs,implementation of algorithms on them, research and optimization of the respective algorithms),as well as Java for the preparation of his dissertation work. Apart from that he also has knowledge concerning android applications and has been involved with Xamarin for a short time.He is familiar with the following programming languages:C#, C++ and AngularJS.
  • Giannis Kalyvas

    Software Engineer

    Giannis Kalyvas

    Software Engineer


    Giannis Kalyvas has completed his studies in the Department of Informatics and Telecommunications of National and Kapodistrian University of Athens. Currently he is employed by CITE as a Software Developer. In the past, he has developed Microsoft Office add-ins using the Javascript API for Office. His main interests include programming in languages like Java, C# and Javascript and their respective frameworks such as Spring, .NET MVC, AngularJS and Angular2. He is also interested in Big Data storage and processing frameworks.
  • Grigorios Kassis

    Software Engineer

    Grigorios Kassis

    Software Engineer


    Grigorios Kassis is a graduate of the University of Pireaus, Department of Digital Systems. He is currently a software developer in CITE. His main interests include programming in languages like Java, C# and Javascript. He also has shown interest in data using PostgreSql, MySql and applying machine algorithms to big data problems.
  • Giorgos Beileris

    Software Engineer

    Giorgos Beileris

    Software Engineer


    Giorgos Mpeileris graduated from the Department of Informatics and Telecommunications of the National and Kapodistrian University of Athens. Currently he is working in CITE as a Software Developer. Previously tried his luck in video game development as a programmer and is now focusing on back-end technologies for software applications.His main interests include programming in C# using the .NET Framework as well as some C/C++. On his free time he enjoys playing and making video games.
  • Panagiotis Kouris

    Software Developer

    Panagiotis Kouris

    Software Developer


    Panagiotis Kouris (pkouris@cite.gr) is a graduate of the University of Peloponnese, at the department of Computer Science and Telecommunications and also a member of the university’s lab, Gav Lab since 2016, at the R&D department of innovative technologies and cultural heritage. He started working as a Software Developer for CITE developing web apps (storing, managing and visualization) over big data and geo data. He has good knowledge of object-oriented languages (Java, C#), relational or non databases (MySQL, PostgreSQL, Mongo),the basics of web development (JS/HTML5/CSS3, jQuery, bootstrap and more),expert at frameworks (Spring API & Angular), web protocols and software security. He is avidly interested in defining and solving complicated problems.