In a nutshell
Employment
I am a Senior Solution Architect for Amazon Web Services (AWS) and Subject Matter Expert on Cloud Governance. I am focusing on the Enterprise special, in the Energy and Manufacturing vertical industry
Key Certifications
Academic
Core Skills
Cloud Architect
Long and deep expertise and experience designing and implementing distributed, scalable and resilient systems. Deep knowledge of AWS and wide experience with OpenStack, OpenShift, Kubernetes, VMware, KVM and cloud infrastructure automation tools such as Cloudformation, Ansible, Terraform, MaaS and Juju.
Linux
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
Managment
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.
Storage
CEPH is the current trend. For many years working with GlusterFS and traditional NFS shares. Extensive design and hands on experience with commercial SANs (IBM, Dell, Fujitsu, Hitachi) and linux options as LVM, MDadm and DRBD
Single Sign On
Extensive hands-on experience implementing Single Sign-On (SSO) solutions utilizing the SAML protocol. Proficient in designing, deploying, configuring, and managing Identity Provider Servers and Service Provider Applications using Shibboleth technology
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.
Personality
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
- Motivating Goals: Security, correct procedures
- Evaluates Others By: Precise standards (based on what they do), stability
- Influences Others By: Attention to detail, dependability
- Value To Team: Quality and correctness oriented, dependable, consistent
- Reaction To Pressure: Stubborn, fearful, holds grudges
Degrees
Languages
Greek
Native Speaker
English
Proficiency in English by Cambridge University, level C2
Spanish
Dele Intermedio by Instituto de Cervantes, level B2
Certifications
- AWS Certified Solutions Architect
- AWS Certified SysOps Administrator
- AWS Certified Developer
- AWS Certified Security - Specialty
- AWS Certified Database – Specialty
- AWS Certified Advanced Networking – Specialty
- AWS Certified: SAP on AWS – Specialty
- Certified Kubernetes Administrator
- Certified Kubernetes Developer
- Certified OpenStack Administrator
- Redhat Certified Engineer
- Vmware Certified Professional
- CISA - Certified Information Systems Auditor (ISACA)
- ISO 27001, 20000-1, 9000 Certified Lead Auditor
- Certificate in IT Service Management (ITIL Foundation)
Career
Senior Solution Architect for Amazon Web Services (AWS) and Subject Matter Expert on Cloud Governance. I am focusing on the Enterprise special, in the Energy and Manufacturing vertical industry
Individual contributor working on projects for design and implementation of Red Hat OpenStack, Red Hat Ceph Storage, Red Hat Satellite and Red Hat RHV products
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.
Chief Information Technology Officer at the SNFCC
Head of the IT division within the organization. The core responsibility of the IT division is to maintain the Data Center facilities (45 Racks and over 30 POPs within a 200.000 sqm of the facility) and provide core IT services to the SNFCC AE, National Library of Greece and Greek National Opera.
Senior Systems Engineer and Head of NOC at the Hellenic National Documentation Center
Head of Network Operations Center and Senior Systems Engineer responsible for the core ICT infrastructure, ICT services and digital data with main responsibilities including devops, virtualization, cloud storage, web services, high availability and scalability, monitoring and capacity planning
Unix Systems Engineer at Ideal Systems (merged with Adacom)
Systems Engineer on the field with focus on Sun Solaris and RedHat Linux environments. Active participation in project for the Hellenic Ministry of Public Order, Hellenic Ministry of Foreign Affairs, Hellenic Ministry of Education, Wind Hellas
Internet Technician at the ISP FORTHnet
Remote and on-site support for dial up and corporate Internet users. Support for small office corporate internet connections and intranets
