Professional in Google Cloud & Kubernetes | Honorary Lecturer

8/2024 – 7/2025

- DevOps-Transformation von OnPremise-Applikationen in die Azure Cloud mittels IaC (Terraform), Helm Charts, GitOps (ArgoCD) und Manifesten
- Arbeit mit Linux Server Distributionen
- Provisionierung Wartung von AKS (Kubernetes) Clustern
- Volle Provisionierung von Grafana Manifesten (Dashboards, Alerts, usw) mittels IaC und Helm Charts
- Berater bei Architekturentscheidungen bzgl. Azure Komponenten und Kubernetes
- Handeln als Azure-Architekt und verantwortlich für die Implementierung
- Verwendete Azure Cloud Komponenten: Azure Application Gateway, AKS (Kubernetes), Azure Storage Accounts (Container), Azure Firewall, Web Application Firewall (WAF), Azure KeyVault, and Bastionhost
- Erstellung einer Hub-And-Spoke VNET Architektur
- Postgres-Migration von OnPremise-Umgebungen in die Azure Cloud mittels Active-Standby Prinzipien (Crunchy Operator)
- Implementierung von Cloud Logging durch Datenerfassung, die in einen Cloud-Speicher gestreamt werden, und Scrapen dieser Daten über Fluentbit und Visualisierung über OpenSearch (+ Operator)

Cloud Spezialist, Database Manager, Kubernetes, Microsoft Azure

11/2022 – 7/2024

- Management, further development, optimization and maintenance of Kubernetes clusters with over 1200 applications (Rancher), improving deployment efficiency by 30% and reducing downtime by 15%
- DevOps transformation from on-premise applications to Kubernetes using IaC, Helm Charts, GitOps and manifests
- Working with Linux server distributions
- Automated integration and deployment with GitLab CI/CD (.NetCore, Java, Golang, NodeJS), using jobs such as builds, tests, vulnerability scans, integration tests, deployment and notifications
- Introduction of GitOps using ArgoCD and Gitlab runners
- Integration of logging, tracing and monitoring using Grafana, Prometheus, Grafana Mimir, Jaeger, Opentelemetry, Opensearch, InfluxDB, and Sentry
- Integration of endpoints with Prometheus metrics in applications (.NetCore, Java, Golang, NodeJS), as well as sidecar tracing using OpenTelemetry Operator
- Full provisioning of Grafana manifests (dashboards, alerts, etc.) using IaC and Helm Charts
- Introduction of a decoupled IAM system using Keycloak (Operator) and OAuth2-Proxy
- Education and training of developers and system administrators in Kubernetes, observability and SRE approaches
- Consultant for architecture decisions regarding microservices in Kubernetes and tools, as well as databases
- Introduction of DevSecOps in CI/CD pipelines and Kubernetes - with tools such as HashiCorp Vault, Kyverno and Trivy
- Evaluation of the Confluent Kafka Operator in Kubernetes
- Deploy and maintain Strimzi Kafka Operator, Strimzi Kafka Clusters, Kafka-Rest-Proxy, Kafka Bridge, KSQL, AKHQ, Schema-Registry, and Kafka Connect
- Setting up K3s clusters in VPN
- Working with 5 teams according to agile principles; leading retrospectives and other agile ceremonies
- Introduction of integration tests with K6 Grafana
- Implementation of a notification system with Angular, NestJs, GraphQL, Postgres, VerneMQ and Golang
- Web development with Angular and NestJs
- Postgres cluster provisioning via CloudnativePG
- Provisioning and maintenance of MinIO to backup and restore postgres clusters
- Implement an API-Gateway via NgINX Fabric, OAuthProxy2 and Emissary Ingress

Access Management, Advanced Message Queuing Protocol, Angular, Continuous Integration, Docker, Golang, Graphql, Kubernetes, Postgresql

8/2022 – 10/2022

- Management, optimization and maintenance of Kubernetes clusters (Rancher)
- DevOps transformation from on-premise applications to Kubernetes using IaC, Helm Charts, GitOps and manifests
- Automated integration and deployment with GitLab CI/CD (.NetCore, Java), using jobs such as builds, tests, vulnerability scans and deployment
- Introduction of GitOps using ArgoCD and Gitlab runners
- Integration of logging, tracing and monitoring using Grafana, Prometheus,
Jaeger, Opensearch, Loki and InfluxDB
- Integration of endpoints with Prometheus metrics in applications (.NetCore, Java)
- Consultant for architectural decisions regarding microservices in Kubernetes and tools, as well as databases such as Postgres and MSSQL
- Web development with Angular, NestJs, GraphQL, and Postgres

ASP.NET, DevOps, Kubernetes, Postgresql, Server-Monitoring

2/2022 – 6/2022

- Creation of an IT architecture overview for business use cases using a
microservice and domain-driven approach
- Working with AWS and creating EKS clusters (Kubernetes), Route53, S3 and
EC2 instances
- Management, optimization and maintenance of Kubernetes clusters (EKS)
- Management of VPCs and EC2 instances using Ansible and Terraform
- CI/CD pipelining with GitHub Actions, Helm Charts and ArgoCD (GitOps)
- Monitoring of applications and systems using Grafana, Prometheus and Influx Stack
- Creation and administration of Postgres databases
- Deployment of microservice applications in Kubernetes using ArgoCD
(GitOps), as well as the creation of its manifests with Helm Charts (IaC)
- Web development with Angular, NestJs, GraphQL, and Postgres

Amazon Web Services (AWS), Angular, Ansible, DevOps, Graphql, Node.Js, Postgresql, Software Architecture, Typescript

1/2022 – 2/2022

- Working with Digital Ocean and creating Kubernetes clusters, droplets and
container registries
- Administration and management of Kubernetes clusters
- CI/CD pipelining with GitHub Actions, Helm Charts and ArgoCD (GitOps)
- Deployment of microservice applications in Kubernetes using ArgoCD
(GitOps), as well as the creation of its manifests with Helm Charts (IaC)
Monitoring of applications and systems using Grafana, Prometheus and Influx Stack
- Web development with Angular, NestJs, GraphQL, and Postgres

Graphql, Continuous Integration, Server-Monitoring, Angular, Kubernetes, Web Entwicklung

10/2021 – 12/2021

- Introduction of CI/CD pipelines for Angular applications, coupled with Nx
- Deployment of applications from GitLab to AWS servers (Apache)
- Further development of Azure DevOps CI/CD pipelines
- Conceptual design and implementation of a Kong gateway in an existing
Azure Kubernetes Cluster (AKS)
- Architecture conception and presentation of Module Federation
- Web development with Angular, NestJs, GraphQL, and Postgres

Continuous Delivery, Continuous Integration, Router / Gateways, Citrix Systems, Microsoft Azure, Amazon Web Services (AWS), Angular, Kubernetes