Daniel Schlieder - DevOps Engineer / Cloud Infrastructure Engineer

• Provisioned a Kubernetes platform on Open Telekom Cloud CCE with comprehensive network isolation
• Built a VPC architecture with public, private, and data subnets
• Integrated managed services: RDS PostgreSQL, DCS Redis, DMS Apache Kafka
• Implemented monitoring with Cloud Eye and Log Tank Service

IMPACT: Cloud Infrastructure Engineer delivered a production-ready platform in 5 days with full network security isolation

• Implemented automated OpenShift Container Platform 4.16 cluster provisioning with Ansible
• Set up CheckMK enterprise monitoring for 6 nodes and 65+ containers
• Created a Helm chart repository for CheckMK deployment
• Developed Ansible playbooks for monitoring client configuration management
• Conducted a cost-benefit analysis comparing OpenShift, OpenStack, and Docker Swarm
• Implemented CVE scanning and vulnerability remediation with Trivy, Clair, and Anchore
• Deployed Keycloak IdP with OpenLDAP backend for SSO integration
• Provisioned Docker Registry v2 with Keycloak SSO authentication

IMPACT: Product Owner delivered automated OpenShift provisioning, enterprise monitoring for 6 nodes and 65+ containers, and a comprehensive cost analysis

• Conducted requirements gathering with stakeholder groups through structured workshops
• Documented detailed requirements with acceptance criteria and test scenarios for the rollout of a digital workplace
• Created test specifications for each requirement with pass/fail criteria
• Coordinated the iterative requirements refinement process
• Developed a requirements catalog using the Hugo static site generator and Git-based version control
• Created a measurable requirements framework for objective vendor evaluation

IMPACT: Requirements Engineer delivered a comprehensive digital workplace requirements catalog for objective vendor selection

• Developed an infrastructure-to-monitoring converter in Python to transform YAML into Icinga configuration
• Deployed the monitoring service on a Docker Swarm cluster on AWS using Terraform
• Created a comprehensive deployment pipeline with automated tests
• Supported a parallel OpenShift evaluation project
• Built an Agile development team using Scrum methodology

IMPACT: Product Owner delivered an enterprise monitoring service with automated configuration generation, trained the Agile team, and provided a cost-effective Docker Swarm deployment on AWS

• Executed a large-scale migration of 1800 virtual machines including 900+ SAP systems
• Created comprehensive migration documentation in German
• Personally carried out the migration of all 900+ SAP systems using Veeam, Foreman, Puppet, and Ansible
• Trained the operations team of 10 engineers
• Supported the infrastructure team with Ansible and Puppet implementation
• Collaborated on automated OpenShift Container Platform deployment with Ansible

IMPACT: Migration Specialist achieved successful insourcing of 1800 VMs including 900+ SAP systems within an accelerated 3-month timeline

• Created comprehensive code-to-production deployment pipelines
• Managed CI/CD infrastructure including Jenkins, TeamCity, SonarQube and Artifactory
• Maintained the OpenNebula private cloud infrastructure
• Updated the CheckMK monitoring configuration
• Developed automation scripts in Ruby, Python and Bash
• Supported developers with pipeline troubleshooting

IMPACT: DevOps Engineer delivers a robust CI/CD infrastructure with automated pipelines and a significant reduction in deployment time