Joseph Alzieb

Hi, I'm

Joseph Alzieb

I build robust, scalable software solutions — from backend APIs to beautiful frontends and mobile apps.

About Me

I'm a passionate Fullstack Software Engineer based in Düsseldorf. I currently work at GEBIT Solutions GmbH, where I design and develop software solutions for complex business needs.

I hold a degree from Heinrich Heine University Düsseldorf and continuously expand my expertise through professional certifications in Java, Spring Boot, Vaadin, Flutter, and other modern technologies.

I love turning complex requirements into clean, maintainable code. Whether it's building a Spring Boot microservice, a Flutter mobile app, or a responsive web application — I bring dedication and care to every project.

Location

Düsseldorf, Germany

Company

GEBIT Solutions GmbH

Education

Heinrich Heine University Düsseldorf (2019 – 2022)

Languages

German, English, Arabic

Tech Stack & Skills

Technologies I work with on a daily basis.

Frontend

Vaadin
React
CSS
Flutter

Backend

Java
Spring Boot
RESTful API
gRPC

Databases

SQL
MongoDB
MariaDB
PostgreSQL

Testing

Unit Testing
Integration Testing
UI Testing
E2E Testing

Tools

Podman
Maven
Git
Scrum

Cloud & DevOps

Microsoft Azure
Docker

Services

What I can do for you.

Web Development

Modern, responsive web applications using React, Next.js, Vaadin, Thymeleaf, and Symfony. From landing pages to complex enterprise portals.

Mobile App Development

Cross-platform mobile applications built with Flutter and Dart. Beautiful UIs with native performance for iOS and Android.

Backend & API Development

Robust REST APIs and microservices with Java, Spring Boot, and PostgreSQL. Scalable architecture designed for production workloads.

Fullstack Engineering

End-to-end solutions covering frontend, backend, database, and deployment. I deliver complete products from concept to production.

Projects

A selection of projects I've built.

Crypto Price Tracker

A cryptocurrency watchlist app to track current prices of various cryptocurrencies in real-time.

DartFlutterAPI

Crypto Wallet App

A crypto wallet application for storing and managing cryptocurrencies, backed by Firebase.

DartFlutterFirebase

Facebook UI Clone

A faithful recreation of the Facebook user interface built with Flutter.

DartFlutter

Meal App

A restaurant app showcasing dishes with their recipes — an idea for how restaurants can present their menu digitally.

DartFlutter

Product Management

A product management system for registering and managing products with a clean Java backend.

JavaSpring Boot

Portfolio Website

This portfolio website — built with Next.js, TypeScript, Tailwind CSS, and Framer Motion.

Next.jsTypeScriptTailwind CSSFramer Motion

Certifications

Professional credentials and continuous learning.

Claude 101

Anthropic Education · Apr 2026

View Credential

Introduction to Claude Cowork

Anthropic Education · Apr 2026

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Claude Code in Action

Anthropic Education · Apr 2026

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Certified Vaadin 24 Developer

Vaadin · Sep 2024

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Certified Vaadin 14 Developer

Vaadin · Sep 2024

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Java EE with Vaadin, JPA, Microservices, Spring and Maven

Udemy · Jan 2023

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Spring Boot & Spring Framework: IoC, DI, Bean-Container

Udemy · Dec 2022

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Working with Git

Udemy · Dec 2022

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Java SE

Udemy · Nov 2022

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Flutter & Dart Development

Udemy · Mar 2022

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Java Masterclass

Udemy · Feb 2021

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Python

Udemy · Feb 2021

View Credential

Get in Touch

Have a project in mind or just want to say hi? Feel free to reach out.