27.06.2026 aktualisiert
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Senior Software Developer | Java & Spring Boot | DevOps & Cloud | AI
Tangstedt, Deutschland
Tangstedt +50 km
Bachelor of Information Technology / Computer ScientistÜber mich
Senior Software Engineer with 15+ years experience in Java, Spring Boot, AWS Cloud, Kubernetes and DevOps. Specialized in backend development, enterprise systems, cloud infrastructure and AI-powered software solutions.
Skills
KeycloakAI AgentsBedrockJavaScriptSpring SecurityAPIsDevOpsSpring FrameworkIntegration (Software)Spring CloudSpring MVCSpring BootBackendAWS ECSSpring Data
Java & Spring Boot Backend Development
Extensive experience in developing, maintaining and optimizing enterprise-grade Java and Spring Boot applications, including REST API design, system integration, production stabilization, troubleshooting and root-cause analysis in complex backend environments.
DevOps & Cloud Engineering (AWS, Kubernetes, Docker)
Deep expertise in cloud-native deployments using Docker, Kubernetes, Helm and Rancher, as well as AWS cloud services including EKS, ECR, EC2 and RDS. Strong experience building CI/CD pipelines with GitLab CI, Jenkins and ArgoCD, combined with monitoring solutions using Grafana, Prometheus and Kibana.
AI-Powered Development & LLM Integration
Building AI-powered development workflows using AI Agents and Large Language Models (LLMs), including AWS Bedrock integration to automate recurring development, operations and business processes, accelerating software delivery and improving engineering productivity.
Microservices Architecture
Design and implementation of scalable microservices-based systems using Spring Boot, REST APIs and modern cloud-native deployment architectures, with strong focus on maintainability, scalability and distributed system design.
Database Engineering (PostgreSQL, MariaDB, MSSQL, Oracle)
Strong experience working with relational databases including PostgreSQL, MariaDB, MSSQL and Oracle, covering schema design, query optimization, performance tuning and seamless backend integration for enterprise applications.
Security & Identity Management (Keycloak, OAuth2/OIDC)
Implementation and integration of enterprise authentication and authorization solutions using Keycloak, OAuth2/OIDC, secure API integrations and identity management architectures in large-scale enterprise environments.
Frontend Development (Angular, TypeScript)
Development of Angular-based frontend applications with TypeScript, including API integration with Java/Spring Boot backend systems and implementation of modern web application architectures.
Application Modernization & Legacy Migration
Pragmatic modernization of legacy enterprise systems without unnecessary rewrites, including migrations from Struts to Angular, Java EE to Spring Boot, monolithic architectures to microservices, and traditional deployments to Kubernetes-based infrastructure.
Monitoring & Observability
Setup, configuration and operation of enterprise monitoring solutions using Grafana, Prometheus, Kibana and Nexus to ensure production stability, observability, fast incident response and proactive system health monitoring.
Sprachen
DeutschverhandlungssicherEnglischverhandlungssicher
Projekthistorie
Implementation of various application systems within a data center, including a proof of concept for a Keycloak integration. Architecture, deployment and system integration. Containerized provisioning and operation in Kubernetes environments. Stack: Java, Spring Boot, Maven, IntelliJ IDEA, GitLab, Keycloak, Docker, Kubernetes, eksctl, Portainer.
Design of a migration path from SiteMinder to Keycloak. Analysis of existing authentication and authorization processes. Definition of migration steps, security assessment and implementation recommendations. Stack: Keycloak, SiteMinder, Security Architecture, Migration, Java environment.
Implementation of an assistive-devices portal with a Java/Spring Boot backend, Angular frontend, PostgreSQL and AWS/Kubernetes deployment. Backend and systems development with Spring Boot and REST APIs. Deployment and operation in AWS EKS with Docker/Kubernetes. Integration of Keycloak and database components. Stack: Java, Angular, Spring Boot, PostgreSQL, H2, Maven, GitLab, Keycloak, Docker, Kubernetes, AWS EKS, AWS CLI, eksctl, AWS RDS, Lens, Portainer.