Christos Karamolegkos

DevOps Engineer and Systems Administrator

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Check out my resume

Resume [En]


I’m a DevOps Engineer and Systems Administrator with a deep-seated passion for problem-solving and solution design. I graduated from the Department of Electrical and Computer Engineering at the University of Western Macedonia with an Integrated Master's Degree (MEng) in Computer and Telecommunication Engineering. The challenge of unraveling complex problems and creating effective solutions has always fascinated me. As a committed professional, I continuously seek opportunities to broaden my horizons and keep up to date with the latest tools and information in my field. My motivation and ability to perform efficiently under pressure are two of my strongest assets. I'm always striving to learn and evolve, constantly seeking out my next challenge.


Systems AdministrationApache2, Nginx, PKI, SSH, Email, LDAP, OpenVPN, Virtualization, High Availability
DevOpsAnsible, Git, Github, Github Actions, GitLab, TravisCI, Docker, Podman, Kubernetes
MonitoringZabbix, Icinga 2, Nagios, Prometheus, Grafana, Monit, Munin, NetData, Uptime Kuma
ProgrammingBash Scripting, Python, Jinja2, YAML, TOML, Go, LATEX
Web developmentHTML/CSS, Bootstrap, Javascript, JQuery, Ajax, PHP, SQL, WordPress, Redis
Operating SystemsLinux (Debian, Ubuntu, CentOS), Windows
MiscellaneousTroubleshooting, Office Suites, Driving License (B)
LanguagesGreek (native), English


Below you will find a list with my recent work experience.

    Senior ITSM Engineer
    January 2024 - Now
    • Automated and performed deployment and maintenance across a fleet of more than 7500 servers and devices around the globe.
    • Maintained hundreds of live services by monitoring performance indicators such as availability, throughput and latency.
    • Grew systems by advocating for changes that enhance reliability, performance and serviceability.
    • Collaborated with the development team to refine CI/CD processes and implement dozens of services, including native packages and containers, on both cloud and on-premises Kubernetes.
    • Relevant Skills: Linux, Bash, VPN, Monitoring, Kafka, Kafka, MQTT
    • , Cassandra, Docker, Kubernetes
    Mandatory Military Service
    March 2023 - December 2023
    • Modernized a cryptographically-secure mobile communications platform between more than 650 remote devices across Greece.
    • Standardized and documented tens of processes, enabling the training of both users and administrators in operating the platform.
    • Relevant Skills: Linux, VPN, SIP, Monitoring, High Availability, Python / Django, Docker, Android
    DevOps Engineer
    May 2022 - March 2023
    • Advocated for introducing tools and processes that respect DevOps best practices, such as the twelve factors.
    • Overhauled the organization's infrastructure, implementing tens of VPN-only accessible, dockerized services like OpenVPN server, NTP, internal/external DNS server, GitLab, Ansible Controller, MTA (Postfix), and others.
    • Launched two self-managed Kubernetes clusters using Ansible and kubespray, used for both development and production purposes.
    • Relevant Skills: Linux, Ansible, VPN, Bash, PKI, LDAP, Docker, Kubernetes
    Systems Administrator
    July 2019 – March 2023
    • Administered the organization's infrastructure of over 130 VMs, hosted on physical on-premise or cloud hypervisors, mainly running Debian OS, managed using the DebOps Ansible project.
    • Deployed and configured hundreds of self-hosted and cloud service instances, including WordPress, Moodle, BigBlueButton, GitLab, Nextcloud, Matrix / Element / Jitsi, Redmine, Vaultwarden.
    • Relevant Skills: Linux, Ansible, LEMP Stack, VPN, Bash, LDAP, PKI, Docker, Monitoring



Below you will find a list of my certifications.

Latest Post


Nextcloud installation for an organization

In this article, we will present the advantages and features of the Nextcloud application suite. This article is based on the experience gained from installing Nextcloud for internal use in the Open Technologies Alliance (GFOSS).


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If you want to get in touch, send an email to:
[email protected]