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