Christian Gehlen Christian Gehlen

Product Manager and Software-Developer for Telcos

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SKILLS

  • API / M2M
    • SOAP
    • REST
    • Messaging / JMS
    • X.509
  • Build
    • Maven
    • Gradle
    • Docker
  • CI
    • Jenkinks
    • Github Actions
    • Gitlab Pipelines
    • Static Code Analysis
    • Dependency Tracking
  • CMS
    • Wordpress
    • BuddyPress
    • WooCommerce
    • Hugo
    • Confluence
  • Configuration and Deployment
    • Ansible
  • Container
    • Docker
    • Docker-Compose
  • Databases
    • Oracle
    • MySQL / MariaDB
    • PostgreSQL
  • Documentation
    • Docs As Code
    • Confluence
    • PlantUML
    • LucidChart
    • Swagger
  • Frameworks
    • Apache Karaf
    • Apache Camel
    • Hibernate
    • Vaadin
    • Drop Wizard Metrics
  • German Telco Market
    • LNP (PDA)
    • MNP / zMRDB
    • S/PRI
    • WITA
    • WBCI
    • TMF OpenAPI
    • TR-AAV
    • Prokom / DeTeMedien
    • SNP
  • IDE
    • JetBrains IntelliJ idea
    • Visual Studio Code
    • NeoVim
  • IaaS
    • Terraform
  • Languages
    • German (native speaker)
    • English (bilingual high school degree, business grade level)
    • java
    • sql
    • python
    • Apache Camel DSL
    • Apache Aries DSL
  • Markup
    • AsciiDoc
    • Markdown
    • HTML / CSS
    • Yaml
    • JSON
  • Methodology
    • Rubber Duck Debugging
    • Domain Driven Design
    • Test Driven Design
    • CQRS
    • Event Sourcing
    • MVC / CRUD
  • Metrics
    • Prometheus
    • Grafana
  • OS
    • Linux (Server and Desktop)
  • SCM
    • Git
    • GitHub
    • Gitlab
  • Templating
    • GoTemplating
    • Freemarker
    • Jinja
  • Web proxy
    • Nginx
    • Apache httpd
    • Traefik