Cloud Engineer

Dennis Irsigler

Engineering cloud infrastructure with

Built from zero. Running at scale.

In 2019, I joined METRO Markets as one of the first engineers to build a B2B marketplace from scratch. No infrastructure, no team, no cloud. Six months later, we were live in Germany. Today, the platform runs 200+ microservices across 40+ GCP projects, serving multiple European countries.

I split my time between cloud engineering and cloud security, from platform architecture and Terraform governance to driving security initiatives across the METRO group, including a HackerOne VDP and enterprise-wide vulnerability scanning.

Years in Cloud
7+
GCP Projects
40+
Developers Supported
300+
Microservices in Prod
200+

What I work with.

Cloud Platforms

Built METRO Markets' entire GCP infrastructure from zero. 40+ projects across dev, staging, and production environments, now serving a B2B marketplace in multiple European countries. Production experience with AWS and VMware from prior hosting roles.

  • GCP
  • AWS
  • GKE
  • Cloud Run

Cloud Native Engineering

From daily build-and-tear-down cycles during platform inception to a stable GitOps workflow today. Architected Kubernetes workloads, networking, and CI/CD pipelines for 200+ microservices across 300+ developers using ArgoCD and Helm.

  • Kubernetes
  • Helm
  • ArgoCD

Golang Development

Built internal tools adopted across the engineering org: an AI-powered merge request description generator, Prometheus exporters for GitHub Copilot and incident management metrics, and a HackerOne-to-incident-management bridge. Production Go, not scripts.

  • CLIs
  • APIs
  • Exporters

Cloud Security

Security Champion across the METRO group. Drove adoption of a public Vulnerability Disclosure Program via HackerOne, enterprise SCA/SAST scanning, and production pentests. Hardened infrastructure with HashiCorp Vault, custom least-privilege IAM, and security-first architecture before a major incident proved the need.

  • Zero Trust
  • IAM
  • VDP
  • Supply Chain

Infrastructure as Code

Organization-level GCP governance with modularized Terraform. Versioned, tested, and reviewed. Automated compliance checks enforce consistency across all environments and projects.

  • Terraform
  • GitOps
  • Modules

Say hello.

Whether you have a project in mind or just want to connect, I'm always happy to hear from you.