~$ whoami

Alexandros Zosimidis

DevOps / Platform Engineer

DevOps / Platform Engineer specializing in Kubernetes, CI/CD, observability and cloud-native secure networking.

Proven track record of designing and operating production kubernetes clusters / platforms, improving reliability, and enabling engineering teams through platform automation and self-service systems.

Strong expertise in Kubernetes environments, networking (Cilium/eBPF), and debugging complex cross-layer production issues.

noris M.I.K.E. · a subsidiary of noris network AG
IT Systems Engineer
  • Design and operate Kubernetes-based production platforms -> Reduced application downtime by designing highly available / redundant deployments
  • Implement Kubernetes networking using Cilium (eBPF datapath) -> Efficient network observability / debugging and policy enforcement on L7
  • Use Tetragon for security observability and runtime enforcement
  • Support application deployments via CI/CD -> Improved deployment frequency
  • Monitor application performance and ship application logs to centralised log stores -> Early detection of issues
  • Configure and manage infrastructure via Terraform and Ansible -> Reproducibility, traceability and faster disaster recovery
Linux Networking Qemu/KVM Docker Podman systemd-nspawn Kubernetes,OKD/OpenShift,Talos OKD/OpenShift Talos Cilium Tetragon Terraform/OpenTofu ArgoCD Gitlab CI Ansible Prometheus Thanos Grafana Loki Vector OpenStack VMware Proxmox
2003 — First contact: Knoppix live CD. Love at first boot sequence.

When I first watched a Linux boot stream past me — services lighting up one by one — I knew I'd found what I was looking for.


Arch Red Hat / Fedora / CentOS Debian / Ubuntu Gentoo

Running Arch as my primary OS for over 16 years. For server deployments, Ubuntu, Debian, CentOS, and Arch are my preferred choices depending on the workload.

Nginx HAProxy OpenVPN ISC KEA (DHCP) OpenLDAP SSSD FreeRADIUS NFS BIND9 NSD Unbound MariaDB Galera RabbitMQ Redis / Sentinel Hashicorp Vault Sonatype Nexus