Experience

Workplaces

Aug 2020 – Present

Software & Systems Engineer at gridscale GmbH (Cologne, Germany (Remote))

Things I do:

• Working in the team which provides PaaS services (Postgres, MySQL MariaDB, Kubernetes, etc.)

Apr 2019 – Jul 2020

Systems Architect at Questback GmbH (Cologne, Germany)

Responsibilities include:

• Develop Terraform modules
• Create CI/CD pipeline to deploy applications to Kubernetes clusters
• Implement company-wide user management in AWS
• Implement company-wide user management in Rancher2 and all Kubernetes clusters
• Build AMI images with packer for services running on AWS EC2 rather than Kubernetes
• Project lead for infrastructure-related projects
• Introduce Infrastructure as Code into the team
• Run knowledge transfer sessions about Kubernetes, Rancher2, Helm, AWS, Terraform, Packer, systemd, etc.
• Work closely with development and product management on requirements for modernization of legacy application
• Work remotely with a consultancy from India for ~ 10 months (experienced the pros and cons of remote work)

Feb 2018 – Mar 2019

Systems Engineer at Questback GmbH (Cologne, Germany)

Responsibilities include:

• Introduce git into the team
• Elaborate a way to run Kubernetes on AWS (Rancher2 with rke)
• Lift legacy application to Kubernetes and AWS from VM based datacenter
• Create Docker container for legacy application
• Create helm chart for legacy application
• Load test internal application, tune metrics and change design in the helm-chart accordingly
• Implement tools and software around the K8s ecosystem: helm, chartmuseum, nginx-ingress-controller, cert-manager, Prometheus, Grafana, EFK, cloudwatch-exporter, Prometheus Adapter for K8s Metrics, etc.

Feb 2017 – Jan 2018

IT Service Management/Operations at Modell Aachen GmbH (Aachen, Germany)

Responsibilities include:

• Automating infrastructure deployment with puppet and ansible
• Implementing processes for internal IT needs
• Implementing KANBAN based ticket system for internal Office IT
• Optimizing internal IT processes
• Supervising student trainee

Apr 2015 – Jan 2016

Student Worker at Modell Aachen GmbH (Aachen, Germany)

Responsibilities include:

• Consulting customers how to implement processes and management documentation with the product (Q.wiki) developed by Modell Aachen GmbH (Onsight training)
• Creating content for Q.wiki demo system
• Automating Laptop Deployment
• Implementing company-wide password management software

Education

• 2013 - 2016: Master of Science in Quality-engineering
  University of Wuppertal
• 2009 - 2013: Bachelor of Engineering in Rescue Engineering
  University of Applied Science Cologne

Tools I have touched and worked with

• AWS
• Terraform
• Kubernetes
• Rancher
• Docker
• Helm
• Grafana
• Prometheus
• Ansible
• Git
• GitHub
• GitLab
• Vagrant
• CI/CD
• Linux
• Packer