About Me

hey, there

From the very beginning of my professional journey, a deep passion for creation has driven me to make software development my primary focus. With over 30 years of experience as a software engineer and developer, I have contributed to a wide range of industry sectors, including IT consulting, certification services, education, and industrial applications.

My expertise spans modern web development technologies, as well as macOS and iOS application development. I possess advanced proficiency in languages such as Objective-C, Swift, C++, C#, JavaScript, HTML, CSS, and Python. I am well-versed in both traditional waterfall and agile development methodologies.

Throughout my career, I have been part of development teams in prominent Greek companies such as PeopleCert SA, COSMOS Business Consulting SA, and GlobalCert SA, as well as international organizations like Zi Corporation in Canada. I have consistently delivered large-scale, high-quality software solutions with clean architecture and robust design principles.

As a creative problem solver, I specialize in building scalable, reusable code and have a proven track record in developing innovative client-server applications that meet high standards of performance and reliability.

Age: 56
Residence: Greece
Freelance: Available
Address: Athens, GR

My Skills

Microsoft Technologies

.Net Framework and .Net Core
MVC web apps (Razor/Blazor)
Restful API's in .Net/Core
(using SOLID principles and clean code)
Microservices Architecture
Microsoft SQL Server
(efficient complex queries, and stored procedures)
EntityFramework Core
Windows Forms Apps.
(using DevExpress or Telerik tools)

Web Technologies

Javascript and JQuery
Angular FrontEnds
Html 5 and CSS.
Bootstrap 5
WordPress 6.0 / WooCommerce
(web sites & e-shops construction)
Docker & Kubernetes
Elastik Search/Kibana
RabbitMq or Kafka
Postgres Db
Mongo Db
Third party API's and Frameworks
(AngularJS, React frameworks, Zoom and Jitsi Api's)
Python 3.5 (Flask)

Programming Languages

C# and Visual Basic
C/C++
Objective-C and Swift (Apple)
JavaScript and TypeScript
Html and CSS
Transact SQL / Linq
Python
Oracle APEX

Operating Systems / Environments

Windows (all versions)
Linux (Ubuntu, Centos, Solaris)
Apple MAC OS (all versions)
Visual Studio (up to v2022)
Rider (jetbrains)
Visual Studio Code.
Apple XCode (up to version 12).
PyCharm

IoT / Electronics

Arduino Boards (Nano, Uno, Mega)
Raspberry Pi (Zero, Pi3, Pi4)
ESP32/ESP8266 (Wifi)
Software:
Arduino IDE (C or Micro Python)
Atom IDE
Geany (for Raspberry Pi)

Graphics/Design

Adobe Photoshop CC (up to v20)
Adobe Illustrator
Autodesk Maya 2018
Cinema 4D R14
RealFlow

Current Occupation:
I work as a Team Leader for the company COSMOS Consulting SA, in major projects for public sector.

Recent Achievements:

Oracle APEX Cloud Developer Professional certification!

This achievement marks a significant step in my journey with low-code cloud development and modern web application design using Oracle APEX.

A certification for my participation in the Conflict Management & Mediation Management at Work program, which took place on May 15, 16, 22, & 23, 2025, as part of our collaboration with SEV (Hellenic Federation of Enterprises).

Most Recent Employers

Diplomas/Certifications

Seminar Certifications

Resume

Experience

Senior Software Engineer<br><i>Team Leader</i>

Feb 2023 - Present

Senior Software Engineer
Team Leader

COSMOS SA
IT Systems & Consulting

I work on a large project for Greek Ministry of Maritime Affairs, named "National Maritime Single Window". It provides all user interfaces to Captains of the ships and Marine Agents to submit declarations about sea routes, journeys and cargos. It also provides a connectivity with EMSA (European Maritime Safety Agency). The whole project consists of 4 API's, 5 Windows Services, 4 Web Services and 2 Web Apps. Web software parts are developed using Microsoft EntityFramework and MVC development pattern (with JavaScript client code).

May 2021 - Feb 2023

Senior .Net Developer

GLOBALCERT SA
INTERNATIONAL AWARDING ORGANISATION

I was the architect and the team leader of project "Certberus" it's main purpose was to create a secure environment for conducting certification exams.
The project included a Web API and a Web App (as API consumer) for the management of the entire system, as well as a client application (Windows Forms App) which performed - without setup - in candidate's system a system check, and then locked down the computer on the exam screen.
In this manner the candidate could not "cheat". It was also transmitting real time video to the invigilator in a special interface of the Web Admin application. All software was written in C#, using MVC for Web Admin and Entity framework 6.0 to fetch data from SQL Server.

2020 - May 2021

Senior MacOS Developer

PeopleCert SA
Global Leader In Certifications

My main responsibility was the expansion of one of the top products of the company named "ExamShield", by adding many new features. Examshield was a Mac OS application, written in Objective-C and was communicating with a Web API (written in C#) using http requests and web sockets. It's main purpose was to provide the exam environment to candidates. Some of the new features that I implemented was (a PDF reader written from scratch, the ability to let users login with their Google, LinkedIn or facebook accounts, the Google Analytics integration and many more).

Education

1992

Salford University

MANCHESTER

Graduated after successful exams with a BSc in Computer Science.

1997

Microsoft Certified Professional

THESSALONIKI

I gained the title of Microsoft Certified Professional MCP, after passing the exams with title 'Implementing and Supporting Microsoft Windows' at LCPC Authorized Prometric Testing Center.

2000

ACCI IT Professionalism Certificate

ATHENS

I received the certificate of competence of an IT executive from the Athens Chamber of Commerce and Industry after relevant certification examinations.

Languages

Greek (Native)
English

SEMINARS

ASP.NET Core - SOLID and Clean Architecture
Entity Framework in Depth: The Complete Guide
C# Developers: Learn the Art of Writing Clean Code
ASP .Net MVC Quick Start
C# Developers: Double Your Coding Speed with Visual Studio
OpenAPI Specification & Swagger Tools - Zero To Master
Complete ASP.NET MVC course in C#
C# Intermediate: Classes, Interfaces and OOP
Ultimate ASP.NET Core Web API Development Guide
Comprehensive macOS Development
Objective-C Crash Course for Swift Developers
Scrum for Beginners + Scrum Master Certification Preparation
iOS 12 & Objective-C - Complete Developer Course

Skills

Coding

C#
Visual Basic
JavaScript / TypeScript
C / C++
Python
Objective C
PHP
Transact SQL
Linq

Knowledge

C#
Rest APIs, MVC, Razor/Blazor web development.
.Net Framework or ASP.Net Core, SOLID principles, Dependency injections, Abstract classes, Singletons, Interfaces, Adapters, Delegates, Threads, Domain Classes, Repositories, Mediator, NLogger, Services. Test Units.
JavaScript, TypeScript
Event loops and Callbacks, Objects and constructors, Modules, Singletons, Observers, Prototypes, Invokers.
Visual Basic
Object Oriented Programming, Custom Event Handlers, Threads, Windows Forms client-server application development with internal or external toolkits (DevExpress or Telerik).
Python
Object Oriented Programming, External libraries, Graphical User interfaces with Tcl/Tk.
RDBMS
SQL Server, MySQL, PostgreSQL, Queries, Stored procedures, File Streams, Common Table Expressions, Data Migration with Sql scripts.
ORMs
Entity Framework 6.4 and Core or DevExpress XPO or Dapper. Code First or Database First implementations. Linq queries.
Versioning
GitHub or Bitbucket. SourceTree software used for Bitbucket repositories.
Cloud Services
Basic DevOps practices in Azure. Docker containers and Kubernetes.