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Data Scientist

  • Profile Created:
  • 3 years ago


IT Director with Over a Decade of Experience in Managing IT Departments – Senior Data Scientist with Hadoop Analytics hands on – Proven Ability to build Econometric models, Forecasting and Implement Machine Learning Techniques in Parametric and Nonparametric data.

  • Highly driven Data Scientist who has successfully undertaken demanding and complex projects of various types of companies. MBA thesis in nonparametric Econometrics.
  • IT Director with great experience which included negotiations with providers, procurement execution, leading functional changes in the business model, new hardware and network installation without shutting down company operations, personnel recruitment, budget design as well as many other managerial functions.
  • Software Development Manager who has designed and developed complex Management Information Systems.
  • Experienced IT Business Analyst with a portfolio of Public and Private Sector projects.

Core expertise includes:

Data ETLEconometricsPython
StatisticsMachine LearningTime Series Analysis & Forecasting
R developmentBusiness AnalysisSoftware Development
Hadoop ConsultingIT Department ManagementDatabase Admin. & Develop.




  • PCC Hellas 2020 - Present

    Data Scientist

    PCC Hellas is a Patient Support Program Provider. My job is to analyze the data, perform the necessary ETL procedures and develop Machine Learning models. The ultimate goals are under investigation but in general I will: • Develop a model to classify the customers depending on their adherence in treatment. • Predicting Customer dropouts.

  • University of Patras 2019 - 2020


    I participated in a new project (Business Administration Dept). It had to do with Time Series Analysis and Forecasting. I used Deep Learning Technics (Sequential Networks, LSTM, MLP, Keras, Tensorflow, Python, Anfis and Fuzzy Networks): • Maximizing profits on Bitcoin trading. • Predicting Economy Shocks • Discover most important factors in Covid 19 mortality.

  • Computer Technology Institute and Press \ 2018 - 2020

    Scientific Consultant

    The Computer Technology Institute and Press \Diophantus\ is a research and technology organization focusing on research and development in Information and Communication Technologies (ICT). I am hired as Data Science Consultant and Software Engineer. • Help on Design and Development of a new department in CTI whose main object will be Data Science applications for Public Sector. • Lead the new department. • Create a Hadoop Cluster Installation • Participate in application Development called “MySchool” in ASP.NET platform. This application serves as Management Information System of Ministry of Education. • Consultancy in Data Management and Data Administration of “MySchool”

  • HCL Technology, Denmark 2017 - 2017

    Data Scientist

    As an HCL consultant, I worked on a project for Tryg Insurance Company in Denmark. • Built a classification model for Accidents sector, to recommend insurance covers (like Disease cover, Critical Illness cover, etc.) • Developed forecasting model for Private Injury Sum that will be recommended to the client. • Built classification model in Travel sector, to recommend the most suitable Destination for the customer, and which insurance covers should be recommended.

  • DCSI 2017 - 2017

    Data Scientist - Financial Analyst

    DCSI is a company which offers maritime services. I had worked there in the past. Now my role was more as Data Scientist. • Built a forecasting model which will be based on several indices measurements to calculate the type of damage that is about to happen. • Created Business Analysis reports from financial statements and develop finance forecasting using econometric models

  • DCSI 2016 - 2016

    Data Analyst Consultant

    DCSI is a company which offers maritime services. • Developed a study for installing Hadoop and Hadoop Ecosystem Tools. Hadoop 5 nodes cluster setup. • Data Analysis with the help of Hadoop. Map Reduce techniques for calculating the deviations from default values. Use of Python with Spark (pySpark) to validate results.

  • Grekis Inox 2015 - 2016

    Data Scientist Consultant

    Grekis Inox is a company which specializes in manufacturing metal tanks and piping networks. • Econometric and inferential Analysis of financial data combined with Monte Carlo simulation. After my study, the company was able to adjust its production in more effective ways in order to satisfy future demand. The company reduced the expenses for raw material at 5% and reduced the production risk at 10%.

  • DCSI 2013 - 2013

    Software Developer

    DCSI is a company which offers maritime services. • Developed of the 3D representation software for vessels. It offered the ability to measure surfaces and lengths of parts of the vessel. At the same time, it could measure the same features from 2D photos of the vessel parts. • Developed real time reporting application based on NodeJS, SocketIO and dygraphs.

  • Myself 2013 - 2021

    Android App Developer

    My work as Android App Developer resulted in an app called “GeoSurprise”. It is a free app in Google Store. Its main functionality is geo-location. • Geolocation features implementation and Facebook API incorporated. • Server is based on NodeJS and CouchDB Technology

  • School of Sciences 2009 - 2016

    Managing Director and Tutor

    School of Sciences is a company which specializes in providing teaching services to university students. • Provided class lessons for Advanced Mathematics, Statistics, Econometrics and Financial Mathematics.

  • Casino Rio 2004 - 2009

    IT Director

    Casino Rio is one of the biggest casinos in Greece. When I undertook the position, there was no IT department, and the IT infrastructure was so obsolete that was barely functioning. I had to rebuild everything from scratch. One of my main roles was that of Data Scientist where the goal was to support Finance and the Marketing Department in decision making. • Conducted Data Analysis to provide great support to Marketing and Finance department. I implemented techniques like ETL, econometric models, Response modeling, Machine Learning, Forecasting, Inferential Statistics. The inferences revealed at least 10% margin in cost reduction. • Redesigned of data and voice network • Recruit the IT department and negotiate with IT providers (Microsoft, Dell, etc.). • Installed Active Directory, Exchange Server, SQL Server and Organized the internal Technical support. • Developed on-line games in company\'s web site, Software Applications and Databases.

  • Computer Technology Institute and Press \ 1998 - 2021


    The Computer Technology Institute and Press \Diophantus\ is a research and technology organization focusing on research and development in Information and Communication Technologies (ICT). Particular emphasis is placed on education by developing and deploying conventional and digital media in education and lifelong learning; publishing printed and electronic educational materials; administrating and managing the Greek School Network; and supporting the organization and operation of the electronic infrastructure of the Greek Ministry of Education and Religious Affairs and all educational units. • Business Analyst in \IT Projects for the Public\ Sector. I participated in several projects for private and public organizations. Some of them are, ASEP (High Council of Personnel Selection for the Public Sector), OPAP (Gambling Organization), ODIE (Horse Races Organization), Ministry of Foreign Affairs. • In \Further Education\ Sector, I designed two very complicated MIS\'s (Management Information Systems) which served, near 200,000 clients. After that I managed the development of these MIS\'s. The platform we used was .net and the language C#. • Designed and organized the project Help Desk. • One of my biggest successes was achieving consensus among stakeholders especially those found in public sector. That was one of the most difficult tasks I undertook. • I designed the certification software that has been used for the certification of 150,000 teachers in all Greek State; a software that received positive feedback and was commented very highly by the Ministry of Education and Religious Affairs when compared with the world famous ECDL.