Senior DevOps Engineer
Schäfer Shop GmbH
Betzdorf, Germany
e-commerce for office supplies
September 2022 - Present — 1+ year
Migration of an e-commerce webshop from a proprietary openstack system to a modern private cloud kubernetes environment. Working in a team to create a new sustainable infrastructure for the future.
- Worked on migration project from proprietary OpenStack to self-managed Kubernetes on Hetzner
- Contributed to the conceptualization and planning of migration strategy
- Implemented environment separation and automation using Makefiles and strategic merging
- Automated migration of hundreds of domains to Cloudflare
- Developed and maintained GitLab CI pipelines for continuous integration and deployment
- Optimized performance of critical infrastructure and frequently used base containers
- Enhanced system reliability and scalability through continuous monitoring and proactive improvements
- Collaborated with cross-functional teams to ensure seamless integration of DevOps practices
- Provided technical support and troubleshooting for DevOps-related issues
TerraformOpenStackKubernetesGardenerGitOps / ArgoCDHCP Vault SecretsAnsible
DevOps Engineer
AVACO GmbH
Niederkassel, Germany
„workpage“ — network to bringing business together
June 2021 - August 2022 — 1+ year
Migration of legacy application deployments from kubernetes to openshift platform (respectively jenkins to tekton pipelines), development enabler, dev ops tech lead assistance, implementing tomorrows infrastructure, re-inventing the product and assisting product management
- Played a key role in a migration project from Kubernetes to OpenShift on Open Telekom Cloud
- Assisted coworkers with backend issues and provided technical support
- Containerized applications and automated infrastructure processes
- Utilized Terraform and Ansible for infrastructure as code and automation tasks
- Developed and maintained CI/CD pipelines to ensure smooth deployment processes
- Implemented monitoring and logging solutions to enhance system reliability
- Collaborated with cross-functional teams to integrate and deploy new features
- Ensured system security and compliance with industry standards
- Optimized infrastructure for scalability and performance
C#KubernetesAdministrationContinuous IntegrationTech Lead
DevOps Engineer
dynabase Technologies GmbH
Cologne, Germany
IT service provider, customer projects
March 2019 - May 2021 — 2+ years
Full responsibility for (further) development and realization of customer projects, e.g. leaseback.de and rbtx.com; Grafana & Prometheus Monitoring Setup in Azure Kubernetes Cluster
- Developed frontend software for reputable customers such as IGUS, including the IGUS Konfigurator platform and rbtx.com
- Led a solo development project for Netbid, handling frontend, backend, and infrastructure
- Utilized Angular and RxJS for building responsive and dynamic web applications
- Implemented backend services using NodeJS for scalable and efficient server-side applications
- Containerized applications to ensure consistency across development, testing, and production environments
- Deployed and managed infrastructure on AWS AKS for high availability and scalability
- Developed and maintained GitLab CI/CD pipelines for continuous integration and deployment
- Collaborated with cross-functional teams to deliver high-quality software solutions
- Ensured system security and optimized performance for customer applications
TypeScriptAngularKubernetesAWSAzureNodeJS
DevOps Engineer
powwow GmbH
Cologne, Germany
b2b ecommerce for mobile tech
July 2018 - February 2019 — 8 months
Migration of legacy applications to Google Cloud; setup and management of Kafka Cluster, VPN, Firewall, IAM and further development of B2B Java Services
- Led migration of legacy applications to Google Cloud
- Set up and managed Kafka Cluster, VPN, Firewall, IAM
- Developed and maintained B2B Java Services
- Utilized Java, Gradle, Spring Boot for backend development
- Implemented infrastructure as code with Terraform
- Optimized system performance and ensured high availability
- Collaborated with cross-functional teams to deliver robust solutions
JavaGradleSpring BootGCPTerraform
Training
FLOWFACT GmbH
Cologne, Germany
real estate and CRM (customer relationship management)
July 2015 - June 2018 — 3 years
Agile software development (scrum + kanban) on Java monoliths. Later also development on new customer software version with focus on React, Javascript, AWS and infrastructure topics in a microservice architecture
JavaC#JavaScriptReactPHPAWSWordPress Customizer