Freiberuflicher Software Engineer | Java · Cloud | 20+ Jahre

Senior Software Engineer, 20+ Jahre Enterprise-Erfahrung: Java-Backend, Cloud-Migration, AI-Integration. Remote-first, Berlin. Spring Boot, Quarkus, Kafka, AWS/GCP/Azure, Kubernetes, DDD, CQRS.

• Amazon Web Services (AWS)
• Architektur (allg.)
• Backend
• Docker1 J.
• J2EE24 J.
• Java (allg.)
• Kubernetes
• Spring Framework12 J.

Senior Software Engineer mit 20+ Jahren Enterprise-Erfahrung in Java-Backend-Entwicklung, Cloud-Migration und AI-Integration. Remote-first, Berlin.

Schwerpunktbereiche: Java (Spring Boot, Jakarta EE, JVM-Internals) · Cloud (AWS, GCP, Azure) · Microservices · Event-Driven Architecture (Kafka, CQRS, Saga) · Domain-Driven Design · API-Design (REST, OpenAPI, OAuth) · DevOps & CI/CD · Softwaremodernisierung · Technische Führung · Architektur-Governance · KI-/LLM-Projekte

Kompetenz-Cluster:
• Technologische Expertise: Java 8–21, JVM-Internals (GC-Tuning, Concurrency), Spring Boot, Quarkus, Jakarta EE, Python, Kubernetes, Docker, Kafka, AWS/GCP/Azure, Terraform
• Architekturkompetenz: Microservices, Event-Driven Architecture, DDD, Clean/Hexagonal Architecture, CQRS, Saga, Circuit Breaker
• Projekterfahrung: 20+ Jahre — Deutsche Bahn, Mercedes-Benz, Volkswagen, BMW, KV Digital, GEMA, MyToys, Fake Defense AI
• Business-Verständnis: Komplexe Anforderungen in skalierbare Architekturen übersetzen, Trade-off-Analyse, Technical-Debt-Management
• Führung & Kommunikation: Mentoring & Coaching, Code Reviews, Pair Programming, Tech-Talks, Brückenbauer Business/Tech

LowCode/BPM: Appian, BPMN 2.0, Apache Camel DSL

JVM-Expertise & Java-Internals:
Garbage Collection (G1GC, ZGC, Shenandoah), Memory Management, JVM-Tuning, Java Concurrency (CompletableFuture, Virtual Threads/Project Loom), JProfiler, Java Flight Recorder

Frameworks:
Spring Boot, Spring Cloud, Spring Integration, Quarkus, Jakarta EE, Micronaut, Project Reactor, Spring WebFlux, Spring Batch, Spring Security, OAuth 2.0

Architekturmuster:
Microservices, Event-Driven Architecture, Domain-Driven Design (DDD), Clean Architecture, Hexagonale Architektur, CQRS, Event Sourcing, Saga-Pattern, Circuit Breaker, Strangler Pattern

Messaging & Event-Driven:
Apache Kafka, RabbitMQ, ActiveMQ, Spring Cloud Stream, IBM WebSphere IIB, Apache Camel

Cloud & DevOps:
Kubernetes, Docker, AWS (EKS, EC2, S3, Lambda), Google Cloud (GKE, Cloud Run), Azure (AKS), Helm, Terraform, GitLab CI, GitHub Actions, Jenkins

Datenbanken:
PostgreSQL, Oracle, MariaDB, MySQL, DB2, Redis, Elasticsearch, Couchbase, CouchDB, Flyway, Liquibase

Code-Qualität & Testing:
JUnit 5, Mockito, Cucumber, Testcontainers, REST Assured, Gatling, JMeter, SonarQube, JaCoCo, OWASP Dependency-Check

LowCode & Process Automation:
Appian (BPM-Plattform, Workflow-Automatisierung), BPMN 2.0, Apache Camel DSL, Oracle Data Integrator (ODI)

AI Engineering:
Anthropic Claude, Gemini, OpenAI GPT, RAG-Systeme, Vector Databases, Agentic Coding (Claude Code, Cursor, Kiro, GitHub Copilot)

Monitoring & Observability:
Prometheus, Grafana, Splunk, ELK Stack, OpenTelemetry, Micrometer, Jaeger, Instana

Methodische Kompetenzen:
Analytisches Denken, JVM-Internals-Expertise, Risikomanagement, Mentoring & Coaching (Code Reviews, Pair Programming, Tech-Talks), Durchsetzungsstärke & Diplomatie