Expertise in Java and Kotlin

We support clients in software projects with Java and Kotlin: over 30 years of experience, from backend architecture to project management, in industries such as logistics, energy, automotive and aviation.

Methods, Roles & Certifications

  • Software architecture, backend development, technical project management
  • Test automation, requirements engineering
  • Scrum, waterfall
  • Certified Project Management Associate (IPMA Level D)

Programming Languages

  • Java (since 1999, versions 1.x–27)
  • Kotlin (since 2022)
  • Python (since 2022)
  • C, C++ (since 1990)
  • x86 assembler (since 1990)

Frameworks & Platforms

  • Spring / Spring Boot (1.x–4.x)
  • Jakarta EE / Java EE
  • Hibernate / JPA
  • Apache Wicket, htmx
  • Apache Tomcat, JBoss EAP/AS, Oracle WebLogic (formerly BEA)

Databases & Migration

  • Oracle Database (from 8i)
  • PostgreSQL (from 7.x)
  • IBM DB2, Microsoft SQL Server
  • H2, Derby
  • Flyway

Messaging & Integration

  • Apache Kafka / Kafka Streams, Confluent
  • Apache Avro, AWS Glue Schema Registry
  • Apache Camel, Camunda (BPMN)
  • Joynr

Cloud, Operations & Monitoring

  • AWS (incl. ECS, Fargate, Lambda, Kinesis, DynamoDB)
  • OpenShift, Kubernetes, Docker
  • Terraform
  • Datadog, Dynatrace
  • OpenTelemetry, Prometheus, Grafana

Build, Test & CI/CD

  • Maven, Gradle
  • JUnit, Mockito
  • GitHub, GitLab, Bitbucket
  • Jenkins, Bamboo

AI-Assisted Development

  • Claude Code, GitHub Copilot, JetBrains Junie
  • Ollama, Langfuse
  • MCP, agents, skills

Languages

  • German (native)
  • English (business fluent)