Work Experience
Cloud Infrastructure Engineer
Sitecore
- βοΈ Leading cloud infrastructure initiatives in Azure with a focus on AKS, GitOps (Flux), and CI/CD automation.
- π§βπ» Act as senior engineer on the team; reviewing IaC, mentoring engineers, and shaping architecture standards.
- β‘ Reduced AKS cluster bootstrapping time by 50% through migrating provisioning workflows from Ansible to GitHub Actions.
- π³ Designed and implemented a custom Docker image to standardize development environments and CI/CD workflows via GitHub Actions.
- π Participating in the network architecture redesign for Private AKS clusters, leveraging Private Endpoints, and cross-region connectivity.
- π¦ Migrated all Cloud Platform repositories from Git tags to GitHub Releases, improving release traceability, documentation clarity, and artifact distribution.
May 2022 - Present
DevOps Engineer
interworks.cloud
- π Gained deep Kubernetes expertise by leading the gradual migration of a monolithic .NET Core application to microservices, while actively spreading Kubernetes knowledge across teams and enabling company-wide adoption.
- π Deployed and managed Kubernetes clusters across environments: on-prem (kubeadm on Hyper-V Ubuntu VMs for dev), AKS HCI hybrid clusters (QA/staging), and AKS in production.
- π Designed and implemented a secure private Docker Registry, centralizing image management and enabling controlled distribution across Kubernetes clusters.
- π‘οΈ Enforced container security best practices, including Docker image hardening (non-root users, minimal base images, reduced attack surface) and mutual TLS (mTLS) with Linkerd service mesh for secure inter-service communication.
- βοΈ Developed CI/CD pipelines with Azure DevOps and automated tasks using PowerShell, Bash, and Python scripting.
- π₯οΈ Managed extensive Linux system administration and configuration alongside Windows server environments (including IIS).
February 2021 - April 2022
System Administrator
Heron Thermoelectric S.A.
- π¨βπΌ Lead System Administrator, gaining hands-on experience with Azure, firewalls, on-premise infrastructure, Active Directory, Linux & Windows servers, Office365, and VMware virtualization.
- βοΈ Gradually incorporated DevOps principles by automating infrastructure management and implementing monitoring and logging solutions like Graylog and InfluxDB/Grafana, while expanding expertise in Azure Cloud.
August 2018 - February 2021
Information Technology Consultant
Prologic Computer Applications
- π Managed computer networking tasks including routers, switches, and related hardware.
- π οΈ Provided remote and on-site support for hardware, software, mail/DHCP servers, and networking issues.
November 2016 - July 2018
Junior System Administrator
Esser Travel
- π₯οΈ Managed MS Windows Server 2008 and Active Directory environments.
- π§ Provided IT support for hardware, software, network devices, and cabling.
- π» Supported Windows OS, Office 365, and Microsoft Exchange services.
May 2014 - January 2016
Internship
Hellas Digital
- π οΈ Provided hardware and software support, including installation and customization of network racks and satellite internet systems.
November 2011 - April 2012