Kostas Gialantzis

Greece

@ghostas33

Badges

Java

Certifications

ghostas33 has not earned any certificates yet.

Work Experience

  • Entry Software Engineer

    Novidea•  February 2025 - June 2025•  Athens, Greece

    Developed RESTful services and internal tools using Java Spring Boot and React, improving system efficiency and usability. Designed relational schemas and implemented queries. Containerized backend services with Docker and successfully deployed on Raspberry Pi, proving scalability on resource constrained environments. Gained exposure to collaborative workflows (Git, code reviews, team meetings).

  • Technical Support Representative

    Cyta Hellas•  January 2017 - December 2018

    Assisted clients in resolving telecommunication issues and escalated complex cases to 2nd level support. Gained early experience in troubleshooting, teamwork, and direct customer communication.

Education

  • University of Piraeus

    B.Sc. Computer Science•  October 2025 - Present

Skills

Docker
Maven
Git
Intellij IDEA
Android Studio
pgAdmin
PostgreSQL
MySQL
Firebase
Spring Boot
Hibernate
React
Java
SQL
Python
JavaScript
TypeScript
HTML
CSS