Freelancer profile translated to English.

Description

I am an experienced Java backend and full-stack developer with a focus on Spring Boot, microservices, and scalable enterprise applications. In projects within the transport, insurance, and medical technology sectors, I have contributed to system modernization, the development of stable REST APIs, and complex backend architectures.

I develop and optimize backend systems, design clean and efficient APIs, implement automated tests, and also support frontend development with Angular as needed. Additionally, I work with containerized environments, CI/CD pipelines, and modern monitoring tools to ensure high quality and long-term maintainability.

My core competencies:

• Java, Spring Boot, Microservices

• Development of REST APIs & Backend Architectures

• Docker, Kubernetes/OpenShift

• Oracle, SQL, Hibernate

• Test Automation (JUnit, Mockito, Testcontainers)

• Full-Stack Development with Angular

• CI/CD (GitLab, Jenkins)

• Monitoring (Splunk, Grafana)

I place great importance on clean, scalable, and well-tested code. My goal is to support companies in developing reliable backends, modernizing existing applications, and efficiently implementing new features.

If you are looking for a dedicated developer who delivers high-quality results and values professional communication, I look forward to successfully supporting your project.

Industry field of expertise

Languages

German
Native or bilingual
English
Fluent
French
Native or bilingual

Workplace preferences

Can work on-site

Bern (up to 50km), Zürich (up to 50km), Luzern (up to 50km), Aarau (up to 50km), Lausanne (up to 50km)

AKROS AG,
Fullstack Developer - Positioning Service
RESEARCH
January 2024 - April 2025 (1 year and 3 months)
Bern, Switzerland
The AKROS Positioning Service sets new standards in precise vehicle navigation by skillfully combining GNSS data with the topographical information of the railway network and the recorded driving directions and distances covered.
• Implementation of microservices with Spring Boot.
• Development of automated tests with JUnit and Mockito.
• 2nd and 3rd Level Support
• Development of concepts for the further development, migration, or new development of components and interfaces, including effort estimations.
Java Spring Boot Angular CI/CD docker-compose OpenShift
ARAG IT,
Fullstack Developer - ACTION POOL
December 2021 - October 2023 (1 year and 10 months)
40 Düsseldorf, Germany
Support for the business unit in developing concepts for the further development of applications in the insurance sector (legal protection insurance and legal services).
• Backend and frontend development, primarily with Spring Boot and Angular.
• Software development for existing and new products, as well as their maintenance.
• Development of unit tests and integration tests.
• Bug tracking and bug fixing of existing applications.
• Ensuring code quality.
IEM GmbH,
Backend Developer – HMS CS
November 2012 - November 2021 (9 years)
Aachen, NW, Germany
IEM operates its own monolithic software called HMS CS (Hypertension Management System Client Server) and is responsible for its further development, maintenance, and gradual migration into microservices.
• Backend development with Spring Boot
• Development of production software for blood pressure monitors.
• Further core task, describe it with details or adjectives
• Development of desktop applications for reading, displaying, and evaluating the stored raw data from blood pressure monitors, as well as table devices and ECG devices.