• support with creation of custom software for in-house use
• create helm charts
• create CI/CD pipelines
• create infrastructure on AWS with terraform 

• Developed and implemented Terraform code to manage infrastructure as code, resulting in more efficient and automated deployment processes.
• Designed and deployed infrastructure on multiple cloud platforms, including AWS, GCP, and Azure, ensuring high availability and scalability.
• Created Helm charts to manage the deployment and scaling of microservices, resulting in improved orchestration and simplified management.
• Implemented CI/CD pipelines using Gitlab CI, allowing for seamless integration and delivery of code changes.
• Acted as a DevOps and Cloud consultant for a software as a service product, providing expertise and guidance on best practices for infrastructure design, deployment, and management.
• Utilized a range of tools and technologies, including Docker, Kubernetes, and Ansible, to streamline the deployment process and enhance the overall reliability of the infrastructure.
• Operations and DevOps best practice knowledge transfer enabling a shift-left mindset for the developers
• Developed and implemented Terraform code to enhance on-boarding of new customers in the SaaS offering

• plan and implement organization design in AWS - terraform
• plan and implement multi-environment network architecture in AWS - terraform
• plan and implement DNS design in AWS - terraform
• plan and implement software delivery process to customer environments - terraform, gitlab CI/CD, helm, helmfile
• implement DevOps best practices - gitlab, terraform etc
• create CI/CD pipelines - gitlab

• IT Consulting Company for my contracting activities

• create a b2b collaboration platform for golfclubs
• architectural platform design
• development environment design
• dev to prod pipeline design
• automation with ansible
• Kubernetes for development, staging and production
• CI/CD pipeline (gitlab, GKE, ansible, slack)
• GitOps/ChatOps (slack, gitlab)

• build a startup
• process management structures (kanban)
• remote working structures

• initiate and maintain puppet modules

• multiple open source projects I work on and worked on in the past

• freelance consulting on all things IT.

• plan, build and run high available, fault-tolerant services
• work on implementing DevOps culture throughout the company
• 2nd and 3rd Level Incident Management
• plan, build, run and maintain network (Free-/OpenBSD, pf, multi site vpn etc)
• plan, build, run and maintain OpenStreetMap Clusters
• map design (tilemill, map css)
• migrate monitoring from nagios to bloonix
• migrate firewall from SecurePoint to FreeBSD pf
• Automation/Config management (puppet)

• HTMLs on request

• support central services and infrastructure in private cloud - openstack, elasticsearch, hashi-stack (nomad, consul, vault), salt, terraform, atlantis etc
• support different teams with SRE related topics - openstack, linux, jenkins, puppet, ansible, salt, github etc
• support and maintain private cloud infrastructure - openstack, terraform, jenkins, github
• support and maintain public cloud setups and services - cloud infrastructure, kubernetes setup and best practices, helm charts,
• support hybrid cloud setups
• propose best practices for public cloud migration paths - private to public, public to public, hybrid scenarios
• create a new team of DevOps engineers and SREs - hiring process, establish processes and workflows inside the team, kubernetes workshops, DevOps best practices

• implement DevOps practices - azure, gitlab
• implement DevOps tools - gitlab, slack
• create DevOps mindset for developers
• shape the way the team works using DevOps and agile methodologies
• create CI/CD pipelines for node.js, java, python apps - gitlab
• create Dockerfiles for node.js, java, python apps - docker
• create helm charts for node.js, java, python apps - helm
• migrate Jenkins jobs to gitlab-runner
• improve Cloud Infrastructure on Azure
• implement best practices regarding kubernetes
• infrastructure as Code (ansible/terraform)
• python software development
• develop AI chat bot based on rasa

• Cloud Migration nach GCP
• Betreuung von Kubernetes Clustern
• Erstellen des Migrationskonzepts
• Erstellen der Organisationsstruktur in GCP
• 2nd und 3rd Level Support für andere Business Units
• Automatisierung des Deployments mit terraform
• Interne Talks zu CI/CD mit ansible und molecule
• Kostenoptimierung in der Cloud
• Monitoring mit grafana und prometheus

• plan and implement organization design in GCP
• plan and implement multi-tenant network architecture in GCP
• plan and implement DNS design in GCP
• plan and accompany cloud migration to GCP with no downtime
• create terraform modules for Infrastructure-as-Code in GCP
• maintenance of on-prem Kubernetes infrastructure
• setup GKE de facto industry standard (nginx-ingress, prometheus, grafana, cert manager)
• talks on automation with ansible and molecule
• talks on best practices regarding automation
• talks on best practices regarding DevOps principles

Processes:

• introduce git flow
• introduce pull requests and mandatory code reviews

Processes/Infrastructure:

• plan, build and run Continuous Integration platform for ansible roles
• plan, build and run nightly tests infrastructure for ansible roles (molecule, tox, jenkins)

Infrastructure:

• build a loadtest in a DevOps Team (2 Devs and me)
• introduce appdynamics (on premise setup, configuration)
• everything concerning proxies (HAProxy, nginx, apache)
• introduce, plan, build, run rancher
• introduce, plan, build, run kubernetes
• SSL Offloading
• swap apache and HAProxy for nginx (drop in replacement)
• 2nd and 3rd Level Support
• Internal talks with regards to container technology, continous integration best practices for ansible
• testing and developing ansible roles with molecule, speeding up ansible runs with mitogen, etc)

• design, maintain, create backup solution (rsnapshot)
• consolidate infrastructure
• migrate from HyperV to Proxmox
• migrate from XEN to Proxmox
• design, plan, build, run, maintain development Infrastructure (lemp stack)
• modernize infrastructure (SLES10 -> CentOS)
• introduce SSL everywhere (A+ rating on SSLabs)
• DevOps / 2nd and 3rd Level Support
• Software packaging (RPM)
• Automation/Config management (puppet) etc.