I?m a Java Full-Stack Developer based in Germany, focused on building secure and maintainable web applications with Java, Spring Boot and React.
Aktualisiert am 01.10.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 23.09.2026
Verfügbar zu: 100%
davon vor Ort: 80%
Java 21
Spring Boot
React
JavaScript
PostgreSQL
Docker
Git
GitHub
CSS3
HTML5
Mockito
JUnit
German
B2
English
fluent
Spanish
fluent
Romanian
native

Einsatzorte

Einsatzorte

Konstanz (+20km) Zürich (+20km) St. Gallen (+20km)
Deutschland, Schweiz
möglich

Projekte

Projekte

3 Monate
2026-05 - 2026-07

EcommerceShop

Java Full-Stack Developer
Java Full-Stack Developer
Full-stack online shop with a React and TypeScript frontend, a Spring Boot API, product browsing, user registration and sign-in, a shopping cart, checkout, and order history backed by a persistent H2 database.
2 Jahre 2 Monate
2024-04 - 2026-05

Task Manager

Java Full-Stack Developer
Java Full-Stack Developer
  • Full-stack task management application combining React and TypeScript with a Spring Boot API. 
  • Features JWT authentication, task creation and editing, status and priority filters, search, and a single Docker deployment.
2 Monate
2025-04 - 2025-05

About Music in Movies

Java Full-Stack Developer
Java Full-Stack Developer
Blog platform with Spring Boot REST API, React frontend, JWT authentication, role-based access for Admin, Author, and User, rich text editing, categories, tags, comments, and video embedding.
3 Monate
2024-07 - 2024-09

FitTimer

Full-Stack Developer
Full-Stack Developer
Fitness timer app focused on a simple, usable workout flow with interval timing, configurable work and rest periods, mobile-friendly layout, and a lightweight deployed experience.
7 Monate
2023-08 - 2024-02

Internship

Full-Stack Developer
Full-Stack Developer
  • Development and configuration of a Symfony-based portal
  • Integration of backend APIs and optimization of server performance
  • Collaboration in agile development processes (Scrum)
  • Participation in code reviews to ensure code quality and maintainability
nvii-media GmbH
Halle (Saale)
18 Jahre 9 Monate
2003-01 - 2021-09

Development of project management and communication skills

Lead Art Coordinator
Lead Art Coordinator
  • Leadership and coordination of international teams
  • Optimization of workflows and logistics processes
Park West Gallery
Miami, USA

Aus- und Weiterbildung

Aus- und Weiterbildung

5 Monate
2026-04 - 2026-08

Java Development with AI Certificat

Full-Stack Java Developer, SPICED Academy
Full-Stack Java Developer
SPICED Academy
Intensive Java development program focused on modern full-stack application development using Java, Spring Boot, React, TypeScript, REST APIs, databases, testing, and AI-assisted software development workflows.
2 Jahre
2022-03 - 2024-02

Anwendungsentwicklung

Fachinformatiker für Anwendungsentwicklung (IHK) - IT Specialist for Application Development, Future Training & Consulting GmbH, Leipzig, Germany
Fachinformatiker für Anwendungsentwicklung (IHK) - IT Specialist for Application Development
Future Training & Consulting GmbH, Leipzig, Germany
Java, web development, databases, operating systems
3 Jahre 10 Monate
1998-10 - 2002-07

Economics

Bachelor of Economics, Ovidius University, Constan?a, Romania
Bachelor of Economics
Ovidius University, Constan?a, Romania

Position

Position

Java Full-Stack Developer Freelance


Kompetenzen

Kompetenzen

Top-Skills

Java 21 Spring Boot React JavaScript PostgreSQL Docker Git GitHub CSS3 HTML5 Mockito JUnit

Produkte / Standards / Erfahrungen / Methoden

Profile

Java Full-Stack Developer with practical experience in developing modern web applications using Spring Boot and React. Strong knowledge in building REST APIs, database integration, and working in agile environments. Hands-on experience gained through internship and freelance projects.

  • Designed, developed, and delivered full-stack web applications for external clients using Java, Spring Boot, React, and TypeScript.
  • Built REST APIs with Spring Boot, Spring Data JPA, validation, and structured application layers.
  • Implemented authentication and role-based authorization using Spring Security and JWT.
  • Developed responsive frontend applications with React and TypeScript and integrated them with backend REST APIs.
  • Designed and integrated data persistence using PostgreSQL and MongoDB.
  • Wrote automated backend tests using JUnit 5 and Mockito to validate service and application logic.
  • Containerized and deployed applications using Docker and cloud deployment platforms.
  • Used Git and GitHub for version control, code management, and CI workflows.


Technical Skills

Backend

  • Java 21 
  • Spring Boot
  • Spring Security 
  • Spring Data JPA 
  • REST APIs


Frontend

  • React 
  • TypeScript 
  • JavaScript 
  • HTML 
  • CSS


Security

  • Spring Security
  • JWT Authentication 
  • Role-Based Authorization


Testing

  • JUnit 5 
  • Mockito


DevOps & Tools

  • Maven 
  • Docker 
  • Git 
  • GitHub Actions 
  • Postman 
  • SonarQube

Datenbanken

PostgreSQL
MySQL
MongoDB

Einsatzorte

Einsatzorte

Konstanz (+20km) Zürich (+20km) St. Gallen (+20km)
Deutschland, Schweiz
möglich

Projekte

Projekte

3 Monate
2026-05 - 2026-07

EcommerceShop

Java Full-Stack Developer
Java Full-Stack Developer
Full-stack online shop with a React and TypeScript frontend, a Spring Boot API, product browsing, user registration and sign-in, a shopping cart, checkout, and order history backed by a persistent H2 database.
2 Jahre 2 Monate
2024-04 - 2026-05

Task Manager

Java Full-Stack Developer
Java Full-Stack Developer
  • Full-stack task management application combining React and TypeScript with a Spring Boot API. 
  • Features JWT authentication, task creation and editing, status and priority filters, search, and a single Docker deployment.
2 Monate
2025-04 - 2025-05

About Music in Movies

Java Full-Stack Developer
Java Full-Stack Developer
Blog platform with Spring Boot REST API, React frontend, JWT authentication, role-based access for Admin, Author, and User, rich text editing, categories, tags, comments, and video embedding.
3 Monate
2024-07 - 2024-09

FitTimer

Full-Stack Developer
Full-Stack Developer
Fitness timer app focused on a simple, usable workout flow with interval timing, configurable work and rest periods, mobile-friendly layout, and a lightweight deployed experience.
7 Monate
2023-08 - 2024-02

Internship

Full-Stack Developer
Full-Stack Developer
  • Development and configuration of a Symfony-based portal
  • Integration of backend APIs and optimization of server performance
  • Collaboration in agile development processes (Scrum)
  • Participation in code reviews to ensure code quality and maintainability
nvii-media GmbH
Halle (Saale)
18 Jahre 9 Monate
2003-01 - 2021-09

Development of project management and communication skills

Lead Art Coordinator
Lead Art Coordinator
  • Leadership and coordination of international teams
  • Optimization of workflows and logistics processes
Park West Gallery
Miami, USA

Aus- und Weiterbildung

Aus- und Weiterbildung

5 Monate
2026-04 - 2026-08

Java Development with AI Certificat

Full-Stack Java Developer, SPICED Academy
Full-Stack Java Developer
SPICED Academy
Intensive Java development program focused on modern full-stack application development using Java, Spring Boot, React, TypeScript, REST APIs, databases, testing, and AI-assisted software development workflows.
2 Jahre
2022-03 - 2024-02

Anwendungsentwicklung

Fachinformatiker für Anwendungsentwicklung (IHK) - IT Specialist for Application Development, Future Training & Consulting GmbH, Leipzig, Germany
Fachinformatiker für Anwendungsentwicklung (IHK) - IT Specialist for Application Development
Future Training & Consulting GmbH, Leipzig, Germany
Java, web development, databases, operating systems
3 Jahre 10 Monate
1998-10 - 2002-07

Economics

Bachelor of Economics, Ovidius University, Constan?a, Romania
Bachelor of Economics
Ovidius University, Constan?a, Romania

Position

Position

Java Full-Stack Developer Freelance


Kompetenzen

Kompetenzen

Top-Skills

Java 21 Spring Boot React JavaScript PostgreSQL Docker Git GitHub CSS3 HTML5 Mockito JUnit

Produkte / Standards / Erfahrungen / Methoden

Profile

Java Full-Stack Developer with practical experience in developing modern web applications using Spring Boot and React. Strong knowledge in building REST APIs, database integration, and working in agile environments. Hands-on experience gained through internship and freelance projects.

  • Designed, developed, and delivered full-stack web applications for external clients using Java, Spring Boot, React, and TypeScript.
  • Built REST APIs with Spring Boot, Spring Data JPA, validation, and structured application layers.
  • Implemented authentication and role-based authorization using Spring Security and JWT.
  • Developed responsive frontend applications with React and TypeScript and integrated them with backend REST APIs.
  • Designed and integrated data persistence using PostgreSQL and MongoDB.
  • Wrote automated backend tests using JUnit 5 and Mockito to validate service and application logic.
  • Containerized and deployed applications using Docker and cloud deployment platforms.
  • Used Git and GitHub for version control, code management, and CI workflows.


Technical Skills

Backend

  • Java 21 
  • Spring Boot
  • Spring Security 
  • Spring Data JPA 
  • REST APIs


Frontend

  • React 
  • TypeScript 
  • JavaScript 
  • HTML 
  • CSS


Security

  • Spring Security
  • JWT Authentication 
  • Role-Based Authorization


Testing

  • JUnit 5 
  • Mockito


DevOps & Tools

  • Maven 
  • Docker 
  • Git 
  • GitHub Actions 
  • Postman 
  • SonarQube

Datenbanken

PostgreSQL
MySQL
MongoDB

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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