IT - Solution Architect including Java, Spring, Kafka, REST, Camunda, BPMN, OAuth2, Test, etc. (f/m/d)

Essential criteria: Experience in developing backend services with Java and Spring Boot, including REST API design, architectural patterns (microservices, hexagonal, DDD), and responsibility for code quality and standards. Experience in the design and implementation of distributed system architectures with event-based patterns (Kafka, RabbitMQ) and processor orchestration (Camunda BPMN) in cloud environments, including consistency strategies (Saga, CQRS, Event Sourcing). Experience in the design and implementation of security measures in productive enterprise environments, including authentication/authorization (OAuth2, JWT), network security, secret management, and integration of security audits. Experience in the technical guidance of a development team as a tech lead or technical coach, including systematic code reviews, definition and enforcement of coding standards (clean code, SOLID), mentoring, and fostering personal responsibility. Experience in defining and implementing test strategies (unit, integration, end-to-end, load/performance tests), identifying critical test scenarios, and developing and communicating a technical vision for further development. Experience in conducting technical requirements analyses, translating business requirements into technical concepts, and working closely with product owners. Prioritization, sprint planning, and coordination. Experience with Kubernetes (deployment, services, config maps, secrets, Helm) including an understanding of cluster operations, resource planning, and troubleshooting in containerized environments. Experience with AWS services (EKS, RDS, S3, IAM, CloudWatch, SQS/SNS) in the context of application development and operations, including Infrastructure-as-Code approaches (Terraform, CDK). Experience in setting up and maintaining CI/CD pipelines in GitLab CI, including multi-stage builds, automated tests, container registry integration, and deployment automation. Experience in systematic error analysis in production systems, including log analysis, tracing (Jaeger, OpenTelemetry), incident handling, and derivation of root cause measures.