Antreas Dionysiou

Marinou Geroulanou 180, Kato Polemidia, Limassol, Cyprus · (357) 99041655 ·

Artificial intelligence, machine learning, neuroscience, and cyber/information security are the terms that touch my heart. Inquisitive, energetic computer science specialist skilled in leadership, with a strong foundation in math, programming logic, and cross-platform coding.

"Information is the oil of the 21st century, and analytics is the combustion engine." - Peter Sondergaard


University of Cyprus (UCY)

Doctor of Philosophy (PhD) in Computer Science
Specialization Subjects: Information Security & Machine Learning.
Fully funded by “Evagoras and Praxandros” scholarship from UCY.
January 2020 - Currently being pursued

University of Cyprus (UCY)

Master of Science (MSc) in Computer Science / Intelligent Systems
GPA: 9/10 (First Class Honors/Άριστα)

Award for the master student with the highest academic performance of the Department of Computer Science.
Award for the master student with the highest academic performance of the Faculty of Pure and Applied Sciences.
Award for the master student with the highest academic performance of the University of Cyprus.

Thesis: Assessing the Impact of Deep Learning on Internet Services' Security Mechanisms.
Fully funded by Logicom Public Ltd.
September 2018 - December 2019

University of Cyprus (UCY)

Bachelor of Science (BSc) in Computer Science

GPA: 9.05/10 (First Class Honors/Άριστα)

Award of academic excellence - Computer Science Department of UCY.
Award of academic excellence in artificial intelligence, artificial neural networks and systems security - iSignThis Ltd.
Award of academic excellence - JCC Payment Systems Ltd.

Thesis: Protein Secondary Structure Prediction using Convolutional Neural Networks in Combination with Gabor Filters and Support Vector Machines.

September 2014 - May 2018

CISCO Networking Academy

CISCO CCNA Certified

Four congratulations letters from CISCO (John T.Chambers Chairman and Chief Executive Officer) for completing the four modules (one per module) of CCNA with excellent grades.

Grade: Excellent with Distinction

September 2010 - June 2014

Kato Polemidia Lyceum

High School Apolytirion
Grade: 19.75 (Excellent)
September 2010 - June 2014

University of Cambridge

GCE A Level Computing
September 2011 - June 2012

University of Cambridge

GCE AS Level Computing
September 2010 - June 2011

University of Cambridge

IGCSE ICT Information and Communication Technology
September 2008 – June 2010

University of Cambridge

IGCSE English as a Second Language
September 2010 – June 2011

Cyprus Computer Society (CCS)

ECDL (European Computer Driving License)
Congratulations letter for gaining the highest grade nationwide.
September 2007 – June 2010


EIT Climate-KIC Accelerator: Stage 2

EIT Climate-KIC Regional Innovation Scheme Accelerator Programme

After winning the ClimateLaunchpad national final we got the tickets to enter the stage 2 of EIT Climate-KIC Accelerator. This stage includes several tasks, such as attracting potential customers, develop a prototype for our solution, and deliver the first operational results for our product. We have secured a €20.000 budget for staffing, travel/ subsistence, and consumables/services costs.

March 2020 - Present

University of Cyprus (UCY)

Department of Computer Science

Teaching Assistant.

January 2020 - Present


EIT Climate-KIC Regional Innovation Scheme Accelerator Programme

Ag Catalytic Solutions -- Ballast Water Treatment System.

EIT Climate-KIC Accelerator is Europe’s largest cleantech accelerator for early stage startups which is focused upon getting them ready for their first customers, helping them fine tune and scale their business and be ready for investors. We won the 1st prize at the national final and took the tickets to the global final in Amsterdam. During the training phase we have learned how to conduct a proper market analysis, finding our beachhead market, perform market segmentation, and develop a detailed business plan.

June 2019 - September 2019

University of Cyprus (UCY)

Cyber/Information Security Research Group (SREC)

Special Scientist / Research Associate.

September 2018 - Present

CEO (Chief Executive Officer), Co-Founder

Ecofy Ltd

Ecofy is a startup company that revolutionized the recycling process through crowdsourcing and gamification. We have created a smart recycling platform for promoting recycling by giving people inceptives. People who recycle can earn different rewards on products and services. I have been personally involved in all cycles of software development including problem definition and problem analysis, needs and requirements analysis, software development (back-end and front-end project development using MySQL for database, PHP for API and Ionic framework (Typescript, CSS and HTML) for the smartphone application), testing and debugging and finally maintenance. Our startup was hosted by IDEA incubator - accelerator.

April 2018 – August 2018

IDEA startup incubator - accelerator

Participating startup team

Business Courses, IDEA Accelerator training, which is an incubator program with entrepreneurial activities, business and marketing courses for startup companies.

April 2018 – June 2018

King Abdullah University of Science and Technology (KAUST)

Scientific research contest

Participated in the King Abdullah University of Science and Technology (KAUST) Winter Enrichment Program (WEP) Poster Competition. My personal research submission, on protein secondary structure prediction using artificial neural networks and Gabor filters, was chosen out of a very competitive pool of students from around the world. Visited KAUST university in Jeddah, Saudi Arabia, and participated in the final contest for selecting the most innovate and applicable idea to be funded by KAUST university.

20 January 2018 – 26 January 2018

Deloitte Ltd

Summer intern at Cyber Security/Risk department

Summer intern at Cyber Security/Risk department of Deloitte Ltd Limassol. The internship was about expanding as well as refactoring the warberry tool. WarBerryPi was built to be used as a hardware implant during red teaming scenarios where we want to obtain as much information as possible in a short period of time with being as stealth as possible. Just find a network port and plug it in. The scripts have been designed in a way that the approach is targeted to avoid noise in the network that could lead to detection and to be as efficient as possible. The WarBerry script is a collection of scanning tools put together to provide that functionality. The internship was about expanding the current free and paid version of warberry tool. Paid version includes hacking tools and scripts for attacking vulnerable network spots once they have been detected. Encryption of data and results was also developed. Warberry is a network scanning/hacking tool for cyber security purposes.

July 2017 – August 2017

University of Cyprus (UCY)

Computational Intelligence and Neuroscience (CIN) Research Lab

Special Scientist / Research Associate

September 2015 – Present

1st Game Exhibition in Cyprus


Participated with QuadCode team in the 1st Game Exhibition in Cyprus, hosted by Microsoft Innovation Centre in European University of Cyprus. The game that was developed and presented was Bomb the Bombs.

10 April 2016

Worldwide programing contests


Participated in Google Hash Code, Hackathon and many other computer science and programmers competitions.

7 September 2014 - Present

QuadCode startup company

CEO, Co-founder

A mobile application developing company. First project of the QuadCode was Bomb the Bombs game, available on the android play store, with more than 500 downloads with no marketing campaigns.

2 January 2016

Diosoft Computing Systems


Founder of Diosoft Computing Systems. The company provides services in the field of information technology, communications, as well as repair solutions both for hardware and software, website:

25 July 2012 - Present

Cyprus National Army


Position: Administrator in Computer Science department of ΓΕΕΦ and also administrator of the server room in Communications department in III ΤΑΞΥΠ. I am very experienced in laptop/pc/server hardware/software problems and I can fix any hardware/software problem with laptop/pc/servers. I am expert on building custom personal computers with different parts from the beginning (combining hardware parts) to the end (installing operating system and software in general format hard disks etc). I have been able to fix/build about 30 pcs/laptops in a day. I am familiar with applications for data recovery and backup. You can contact my head officer in the army to ensure you about the above information. Tel: 99444851 Mr.Kalinikou Marios.

July 2012 – July 2014

Lyceum academic excellence awards


Award of Excellence by CYTA for gaining the highest score in Selected Subject Computer Science.

Award of Excellence by P.O.P for gaining the highest general score in Lyceum Apolytiron nationwide.

Award for examined and successfully passed the module Pascal Programming, from Cyprus Computer Society CCS.

Attended 6th Nationwide Technology Contest of University of Cyprus. Award Diploma for Most Innovative Design and Clever Programming. Diploma of attendance in Team Robot Contest.

June 2012

University of Cyprus (UCY)


Attendance Diploma from Research team of Learning in Physics and Environmental Sciences of University of Cyprus, about research on MATERIALS SCIENCE, CoREFLECT and Science created by you (SCY).

29 June – 31 June 2009

Scientific Publications and Conferences

  Dionysiou, A., & Athanasopoulos, E. (2021). Unicode Evil: Evading NLP Systems Using Visual Similarities of Text Characters. In Proceedings of the 14th ACM Workshop on Artificial Intelligence and Security (AISEC). Virtual, November, 2021.

  Dionysiou, A., Vassiliades, V., & Athanasopoulos, E. (2021). HoneyGen: Generating Honeywords Using Representation Learning. In Proceedings of the 2021 ACM Asia Conference on Computer and Communications Security (ASIA CCS '21). Association for Computing Machinery, New York, NY, USA, 265–279. DOI:

  Dionysiou, A., & Athanasopoulos, E. (2020). SoK: Machine vs. Machine–A Systematic Classification of Automated Machine Learning-Based CAPTCHA Solvers. Computers & Security, 101947.

  Dionysiou, Antreas. Internet of Intelligent Things (IoIT): A Large-Scale Evaluation. LAP LAMBERT Academic Publishing, 2019.

  Dionysiou, A., Papaevripides, M., Charalampous, A. (2019). Library Information Retrieval (IR) System of University of Cyprus (UCY). International Journal of Computational Science, Information Technology and Control Engineering. 6. 09-20. 10.5121/ijcsitce.2019.6102.

  Dionysiou, A., Agathocleous, M., Christodoulou, C., Promponas, V. (2018). A Hybrid Machine Learning Algorithm for Complex Sequential Data Classification, Using a Novel Data Representation Method. Proc. of the 11th Cyprus Workshop on Signal Processing and Informatics (CWSPI), Nicosia, Cyprus, July 2018, p.8.

  Dionysiou A., Agathocleous M., Christodoulou C., Promponas V. (2018). Convolutional Neural Networks in Combination with Support Vector Machines for Complex Sequential Data Classification. In: Kůrková V., Manolopoulos Y., Hammer B., Iliadis L., Maglogiannis I. (eds) Artificial Neural Networks and Machine Learning – ICANN 2018. Lecture Notes in Computer Science, vol 11140, Part II, Springer, Cham, pp. 444-45

Refereeing for journals and conferences:

- International Conference on Artificial Neural Networks (ICANN),

- International Conference on Artificial Intelligence Applications and Innovations (AIAI),

- Computer Methods and Programs in Biomedicine,

- International Conference on Engineering Applications of Neural Networks (EANN).


Programming Languages & Tools
Operating Systems
Frameworks & Databases
Personal Skills

Good communication skills, gentle, adaptable, alert, ambitious, businesslike, careful, and confident.


I am interested in machine learning, deep learning, artificial intelligence, neuroscience, data science and cyber/information security. Also, i am interested in building custom personal computers with different kind of hardware and fixing different hardware/software problems on laptops/pcs/servers as well as mobile phones. Furthermore, i enjoy playing my guitar, singing, dancing as well as watching movies in my free time. Moreover, i have a deep love for sports cars.

My goal is to gain experience and learn from every part of life.