Java Developer & Kotlin Developer & React Developer

Erfahrener Senior Full-Stack-Softwareentwickler mit Fachkenntnissen in der Konzeption und dem Betrieb verteilter Systeme in verschiedenen Branchen. Verfügt über fundierte Kenntnisse in ereignisgesteuerten Architekturen, CQRS und Event Sourcing unter Verwendung des Axon-Frameworks sowie über umfassende Erfahrung in den Bereichen Kotlin, Java, Spring Boot, React, AWS/GCP und Observability Engineering. Besitzt einen M.Sc. in Computersicherheit und hat an groß angelegten Cloud-nativen Plattformen gearbeitet. Teamorientierter Mitarbeiter mit fundiertem Verständnis für Sicherheit und Systemzuverlässigkeit.

Software Engineer (09/2020 - 01/2026)

• Designed and developed microservices for a spare-parts e-commerce platform serving dealers across European markets.
• Built event-driven services and architecture using Axon Framework, CQRS, and Event Sourcing, processing business-critical ordering.
• Developed backend services in Kotlin/Java and customer-facing applications in React, TypeScript, and Redux.
• Implemented WebSocket-based real-time communication between dealers and ordering systems.
• Designed an authentication proxy integrating OKTA-based identity management.
• Introduced centralized observability using Grafana, Prometheus, and Dynatrace, reducing incident detection and troubleshooting times from hours to minutes.
• Contributed to AWS and GCP cloud infrastructure, CI/CD pipelines, and platform reliability initiatives.
• Collaborated in an international agile team of ~15 engineers across backend, frontend, QA, and DevOps disciplines.

DevOps Engineer (07/2019 - 09/2020)

• Led migration of enterprise source-control repositories from TFS to Git.
• Designed and maintained Jenkins CI/CD pipelines, significantly reducing build and deployment times through parallelization and incremental builds.
• Coordinated organization-wide migration to C++17 across multiple software components.
• Improved release automation and developer productivity within the platform engineering team.

C++ Developer (07/2016 - 08/2018)

• Developed embedded software for secure payment terminals processing bank-card transactions.
• Implemented and maintained transaction-processing components with a focus on reliability and security.
• Worked closely with payment protocols, hardware integrations, and certification requirements.