Beschreibung

I help companies design, scale, and modernize core backend systems. With over 8 years of experience delivering production-ready software for global enterprise organizations—including brands like Mercedes-Benz, MasterCard, and Macy’s—I bring immediate value by engineering high-performance RESTful APIs, decoupling legacy monoliths, and ensuring technical excellence through clean code and SOLID principles.

What makes me stand out:

End-to-End Core Java Expertise: Deep mastery of Java (8/11/17), Spring Boot, Spring Batch, and JPA/Hibernate.
Architecture Modernization: A proven track record of migrating legacy codebases into highly maintainable, distributed microservices using Clean Architecture.
Cloud & DevOps Literacy: Comfortable working alongside operational teams within Google Cloud Platform (GCP), containerizing environments with Docker and Kubernetes, and supporting automated CI/CD pipelines.
Technical Leadership: Experienced in acting as a technical reference, conducting rigorous code reviews, and mentoring mid-to-junior developers to raise software quality standards.

The types of projects and deliverables I handle:

Architectural design and implementation of highly-concurrent, distributed backend services.

Modernization of legacy enterprise applications and database optimization (SQL/NoSQL).
Greenfield microservices development with a strong focus on integration testing (JUnit, Mockito, TestContainers).
Cross-functional, Agile Scrum collaboration where I serve as both a technical sparring partner and a mentor.

Based in Bavaria, Germany, with full authorization to work (no visa sponsorship needed), I am available for immediate start on high-impact freelance projects across Europe.

Let's build reliable, scalable software together.

Branchenexpertise

Sprachen

Englisch
Muttersprachlich oder zweisprachig
Portugiesisch
Muttersprachlich oder zweisprachig
Deutsch
Grundkenntnisse
Spanisch
Grundkenntnisse

Arbeitsortpräferenzen

Nur remote

Führt Projekte hauptsächlich remote aus

T-Systems (Mercedes-Benz Project)
Senior Software Engineer
LOGISTIK & SUPPLY CHAIN
Oktober 2022 - August 2024 (1 Jahr und 10 Monate)
• ● Developed backend services for system modernization, migrating legacy code to modern REST API architectures.
• ● Acted as a technical reference for middle and junior developers, conducting code reviews and providing mentorship.
API First Java JEE Jenkins IBM Db2
Avenue Code (Macy's Project)
Senior Software Engineer
GROSSHANDEL
Mai 2022 - August 2022 (3 Monate)
• ● Engineered high-traffic catalog APIs for a large-scale E-commerce platform, ensuring high availability and performance.
• ● Optimized microservices and implemented new features using the Spring ecosystem and Google Cloud (GCP).
• ● Tech Stack: Java, Spring Boot, GraphQL, Docker, GCP, BigQuery, JUnit, Mockito.
Java Spring boot GraphQL API REST Google cloud
E-core (Priceline Project)
Backend Specialist
REISEN & TOURISMUS
September 2021 - April 2022 (7 Monate)
• ● Led the migration of legacy booking systems to Google Cloud Platform, creating new APIs for contract generation and management.
• ● Structured microservices and improved continuous deployment pipelines to enhance system scalability.
• ● Tech Stack: Java, Spring Boot, GCP, Firebase, MySQL, Docker, TestContainers.
Java Spring boot Microservices Google cloud Docker