In a nutshell


I am currently employed by the GRNET (Greek Research Network) as a Senior Systems Engineer, leading the Cloud Engineering team for Openstack

Key Certifications

RedHat Certified System Engineer and Vmware Certified Professional. Certified Information Security Auditor (ISACA), ITIL professional and Certified Lead Auditor for ISO 20000-1, ISO 2700.


Engineer in Informational and Communication Systems (Aegean University, Greece), MSc in Networking and Data Communications (Kingston University, UK) and MSc in Strategic Management (University of Athens, Greece)

Core Skills

Cloud Architech

Over a decade of hands on involvement with virtualization and cloud infrastructure with VMware, KVM, Xen, OpenNebula. Currently working on OpenStack and cloud infrastructure automation methods exploiting MaaS, Juju and Ansible.


Two decades of professional experience in Unix and Linux system. Design, installation, configuration and operation of full stacks including Apache, Nginx, MySQL, PostgreSQL, Varnish, Haproxy, Corosync, Pacemaker, Nagios, Grafana, Ansible, Puppet


Experienced team leader of various technical teams of engineers up to 20 people. Several years of experience as CTO for a multimillion organization responsible for strategy, budget, contracts and operations.


CEPH is the current trend. For many years working with GlusterFS and traditional NFS shares. Quite extensive experience with commercial SANs (IBM, Dell, Fujitsu, Hitachi) and linux options as LVM, MDadm and DRBD

Single Sign On

Vast experience with Single Sign On through SAML protocol. Design, installation, configuration and operation of Identity Provider Servers and Service Provider Applications with Shibboleth.

Security and Network

While never been primary professional necessity, always deeply involved with the design or administration of both commercial and open source firewalls (Cisco ASA, Checkpoint, Pfsense, IPtables)as well as datacenter networking.


I have an expert personality evaluation by ManPowerGroup, accord to the DISC method which is a method of identifying predictable actions and personality traits within human behavior.

According to DISC my personal style is “Peacemaker SC” and my

Dominance (decisive, authoritative, direct)
Influence (talkative, persuasive, interactive)
Steadiness (desire for security and peace, ability to be a team player)
Conscientiousness (desire for structure, organization, details)




Native Speaker


Proficiency in English by Cambridge University, level C2


Dele Intermedio by Instituto de Cervantes, level B2



Senior Systems Engineer and Cloud Architect at GRNET 

Lead architect and engineer for a multi region public cloud for the Academic and Research community in Greece. The public cloud utilizes Openstack and CEPH, offering at the moment more than 8000 computing cores and 1PB of raw data.

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