Working Experience

kostas_laptop

As a student on AUEB I worked as a programmer, as a webpage developer and designer and as a teacher of ECDL courses.

The years 2015 and 2016, I had been working as a Senior Web Developer and IT Engineer for an IT Organization based in Athens, Greece.

For some years, periodically, except volunteer or professional freelancer software and web developer, I worked as a Computer Science Teacher on various educational institutions in Athens both in public and private sector.

I work partially from 2000 developing many custom web applications and software systems using PHP & MySQL, Joomla and WordPress CMS.

I have developed many computer applications in various programming languages using C, C++, C#, Java, Visual Basic and Delphi – Lazarus. These are on areas of  Mathematics, Statistics, Cryptography, Neural Networks, Operations Research, Civil Engineering, Maritime, Football Statistics, GIS Applications, Medical Applications and many many more!

I have designed many databases using MS SQL Server and MS AccessMySQL and SQLite.

I worked in the Banking sector of Greece for a small amount of time in 2007.

If you are interested or have a sophisticated idea for a software system or a web application don’t hesitate to contact me.

At last see some of the main applications I’ve developed till now:

 

COMPUTER SOFTWARE & WEB APPLICATIONS

File Sizes Reporting Software Utilities  in C# (VS 2015) and C++ (Code::Blocks Win32 App) (2016)

Massive File Encryption Software in C# (C-Sharp) (2015)

MS Word Documents to Plain Text Converter in C# (C-Sharp) (2015)

Dynamic Webpage development with PHP & MySQL,  Joomla & WordPress. (2002 – today)
Massive File Encryption Windows Software using AES (Rijndael) algorithm with 256-bit key in C++. (Implementation of California Institute of Technology Algorithm written in C). (2009 – 2010)
Neural Network Application developed with C++. (2006)
Linear Regression Software in C++. (2009)

Spreadsheet Application with VB 6. (2002-2003)
Multilingual Thesaurus Software in VB 6. (2001)
Civil Engineering Software in VB 6. (2006)
Maritime Vessel Valuation Software in VB 6. (2003)

StoreHouse Management Application in VB 6 (2009)
Football Games Statistical Software in VB 6 (2002)
Development of simple but useful Media Player with Lazarus. (2002)
Random Data Generator Application using C++. (2004)

Bidirectional Greek to Greeklish Text Converter using C++. (2009)

Geographical Information System using Visual Basic (2002-2004).

Optical Discs Database Application written in Lazarus. (2002)
Online Medical Application for Microbiological Analysis in Adobe Flex SDK. (2009)
Car Rental Offices Application Development with NetBeans and Eclipse. (2009)

Development of Java Applets like scrollers and media players for use on webpages.
Statistical Software for Laser Sensors in C# (2014)
Automatic Data Integration Software for Fuel Stations Equipments Representative using Excel VBA (2014)
Drug Interaction Software using C# (2014)
Nutrition Software using VB.NET  (2014)

Images Viewing and Browsing Software in Visual Basic 6 (2000)

Automobiles Service Stations Software using Microsoft Access 2000 (2001)

Travelling Salesman Problem (TSP) optimization software using C++ with Visual Interface (2002)

Operations Research Knapsack problem solver using Java and AWT. (2000)

Development of many custom applications on Medical Science using C# (2009-2014)

Many software utilities with free IDEs not to be listed here. (2000 – 2016)