SafeMarket was established in 2011 with the aim of providing high-quality software and algorithmic design for demanding standalone and web applications. The company has two fully-equipped independent offices in Athens and Thessaloniki Greece, employing 17. These are augmented by many associated specialists and external collaborators, expanding and enriching the company’s capabilities. SafeMarket is equipped with a complete in-house IT infrastructure, utilizing more than forty dedicated servers hosted abroad and multiple virtual machines hosted by Amazon, Google, Rackspace and Akamai functioning as a hybrid cluster. Special devices for networking, randomization and authentication, such as GPS receivers, biometric and fingerprint authenticators, touch user interface for graphical password systems, hardware-based random generators and high-quality routing systems are also deployed.

The company has strong academic connections in the fields of e-learning, software engineering, artificial intelligence and computer security on a global as well as a national level, keeping us up to date the latest developments in the field. Due to the special composition of our team, SafeMarket is able to provide an optimum blend of research, design, marketing and developing.


Board of Directors

Chief Executive Officer

George Brintalos (MSc) - Partner

With a very strong CV in the fields of correlation trading and risk analysis techniques, he has worked for more than a decade in the financial industry holding various positions with Barclays Capital (London), Credit Suisse (Hong-Kong) and BBVA (Madrid). His knowledge and expertise in neural network systems and prediction models is invaluable in the construction of data/knowledge classification algorithms. He holds a BSc in Applied Computer Science and an MSs in Financial Engineering.

Chief Financial Officer

Dr. Anastasios Kaparis - Partner

With a strong background in both academia and business, Dr. Kaparis is the founder of one of the most famous and successful search-engines for real-estate properties in Greece ( He has also been a research associate and a laboratory and teaching assistant for various courses related to informatics at the University of Macedonia, Advanced Technological Educational Institute (ATEI) Serres and Athens GSM College. Dr. Kaparis has also worked as a consultant, reviewer and project manager for a number of education institutes and accounting companies in Greece.

Chief Operating Officer

Dr. Konstantinos Chalkias - Partner

He has strong educational, research and development experience especially in the fields of computer security and cryptography, web development and trading algorithms. Konstantinos has published various high-quality scientific papers in international journals and conferences and has earned the best paper award for at least 3 times. He is mainly known for his work in Timed-Release Encryption and Graphical Passwords, having proposed some of the fastest protocols and practical solutions in this area. He has also acquired a number of national scholarships and participated in various research programs in the past. Konstantinos has been a Teaching Assistant in the Univ. of Macedonia for more than 5 years in Cryptography and Security, Chaos Theory, Statistics and OOP courses.

Expert Advisors

Lead Content Manager

Dr. Dimitrios Hristu-Varsakelis - Advisor

Dr. Hristu-Varsakelis serves as a technical advisor and the lead content manager. He holds a Ph.D. in Engineering Sciences from Harvard University and is currently an Associate Professor in the Department of Applied Informatics at the University of Macedonia, Thessaloniki, Greece. He has worked on and published in the areas of optimization, cryptography, mathematical modeling and control systems.

Lead Financial Engineer

Dr. Grigorios Siourounis

Holding a Ph.D. in Economics from London Business School (UK), he is currently an Assistant Professor in Economics (Panteion University, Athens). He was awarded the 2005 Young Economist Award from EEA and the 2008 Austin Robinson Prize from RES. He was a member of the Global FX Strategy team at Barclays Capital as global head of quantitative research where he developed 3 FX-related patents. As a co-founder in various investments companies, he is also certified from the British FCA in consulting and trading financial instruments.

Big Data Specialist

Anastasios Kichidis (PhD Candidate)

Holding an MSc degree in Network and Communication from the Aristotle University of Thessaloniki with research work and publications in security and cryptography, he specializes in server programming for high-performance, low-latency distributed systems focusing on NoSQL big-data databases (Apache Cassandra), multi-threaded application services (Java, Netty), Caching and Indexing (Redis, Memcached, ElasticSearch) and web development (JQuery, Node.js, PHP, MySQL).



Backend and Mobile Developer

Pavlos Chrisochoidis (MSc)

He is the lead backend developer for the Quizedia project and administers our dedicated network infrastructure and services. Pavlos is an expert in Javascript libraries (Node.js, Angular.js, jQuery) and an experienced PHP and Java/Android developer. His studies include an MSc in Computer Systems and Network Technology and he is currently active in projects relating to parallel processing and the Hadoop framework.

AI and Java Developer

Stefanos Stavrotheodoros (MSc)

He holds a BSc in Computer Science and an MSc in Business Informatics mainly focusing on artifical intelligence and optimization algorithms. Stefanos is a skilled Java developer and is currently working on Text-mining and Web Parsing for automatically generating questions and high-quality Trivia Games. He is familiar with a large set of related programming libraries and tools (JSoup, OpenNLP, LingPipe, SPARQL, RDF, XQuery/XPath, Hibernate, Mahout, WEKA, OpenCV).

E-learning and Web Expert

Stamatia Artemi (PhD Candidate)

She holds an MSc in Computational Physics and she is about to finish her PhD thesis (Aristotle University of Thessaloniki) in developing educational methods using e-learning tools. Stamatia actively participates on all of our Educational Projects (Quizedia, Eduiz, Flooxi) by designing the front-end UX/UI so as to meet a set of educational and gamification requirements (PHP, C++, Javascript, Angular.js, jQuery, CSS3, HTML5, MySQL).