Java Developer

Der Kandidat ist ein erfahrener Java-Softwareentwickler mit den Schwerpunkten Backend-Entwicklung, RESTful-APIs und Microservices. Er verfügt über fundierte Kenntnisse im Umgang mit verschiedenen Datenbanken, Messaging-Systemen und Cloud-Technologien. Vor kurzem hat er sein Fachwissen auf SAP BTP ausgeweitet, darunter CAP, SAP HANA Cloud und weitere Bereiche. Er verfügt über fundierte Kenntnisse in den Bereichen CI/CD-Automatisierung, Sicherheit und der Bereitstellung skalierbarer Lösungen. Er zeichnet sich durch seine Kooperationsfähigkeit, seine Erfahrung mit agilen Methoden sowie seine Mentorentätigkeit aus.

Software Engineer (06/2024 - present)

• The candidate designs and develops Java-based microservices with Spring Boot for a marketplace platform in a retail/e-commerce sector.
• Implements a CQRS architecture using MongoDB read models and PostgreSQL write models to improve query performance and scalability.
• Develops RESTful APIs and integrates them with React-based frontend applications.
• Implements asynchronous communication between services using Apache Kafka, and configures authentication and authorization using Keycloak, OAuth2, and OpenID Connect.
• Containerizes applications with er and deploys microservices to Azure Kubernetes Service (AKS) using Helm, while managing configuration, secrets, and deployments with Vault and Kubernetes.

Software Engineer (09/2020 - 06/2024)

• The candidate developed and maintained Java microservices with Spring Boot to support financial transaction processing in a FinTech sector.
• Designed and implemented REST APIs for communication between distributed backend services and frontend applications.
• Developed Kotlin-based services for internal APIs and business workflows.
• Improved application performance by introducing Redis caching and optimizing PostgreSQL queries, and implemented CQRS read models in MongoDB for analytical and reporting workloads.
• Integrated asynchronous messaging using Apache Kafka and RabbitMQ, secured microservices with Keycloak, OAuth2, and OpenID Connect, and built automated CI/CD pipelines with GitLab CI/CD deployed to OpenShift using Helm.