Apr 2015 – Apr 2017 · 2 yrs · The Hague, South Holland, Netherlands

Apr 2014 – Mar 2015 · 11 mos · secfu.net

• IT Security Researcer / Analyst

Oct 2012 – Oct 2013 · 1 yr

• Management of the technician personnel of IT Centre of the Unit, which is responsible for:
• Administrating all the classified network, systems and applications of Hellenic National Defence General Staff, from layer 1 to layer 7, both National and NATO ones.
• Securing them including network security, host security and users' security awareness.
• Deploying new devices, servers or systems when needed.

Sep 2010 – Oct 2012 · 2 yrs 1 mo

• Team leader, responsible for the protection of the Classified Systems of the Hellenic National Defence General Staff.
• Administration of all Network and Host IPS, Firewalls, WAFs, antivirus, etc.
• Enforcing security policies for the classified network and systems of the HNDGS.

Jan 2009 – Jan 2011 · 2 yrs

• I have participated in several Cyber Defense Exercises, international (NCDEx'09, NCDEx'10, NCDEx'11) and national (Panoptis 2010) ones, either as a member of the Read Team or as a National Exercise Controller.

Jan 2010 – Jan 2014 · 4 yrs

• Exam Development and auditing (on demand) for GWEB, GCIH, GCIA, GREM, CXPN, GSEC GIAC Security Certifications.

Jan 2009 – Mar 2015 · 6 yrs 2 mos

• Responsible for guiding and advising authors of GIAC Gold papers on both technical and writing issues, grading the papers of the authors that I supervise and reviewing papers of other candidates.

Dec 2007 – Sep 2010 · 2 yrs 9 mos

• Handling Cyber-Defense and IT Security Incidents in the scope of Hellenic National Defence General Staff and in the Greek Armed Forces.
• Testing IDS, Network and Host Perimeter Protection and SIEM systems, designing and proposing network perimeter protection architectures and deploying them.
• Proposing preventive and reactive security measures and policies.

Oct 2003 – Dec 2007 · 4 yrs 2 mos

• Project management of several Telecommunications projects of Hellenic Air Force, specialised in cryptographic projects (related with architecture, equipment and procedures) and backbone networks.
• Holder of National and NATO Security Clearance.
• I also participated and managed several NATO and national IT/Telecom projects and participate as a National representative to various Working Groups like the NATO Tactical Data Link Working Group (DLWG).

Jan 1995 – Apr 2014 · 19 yrs 3 mos

• Instructor in various Public and Hellenic Air Force Schools in the fields of Telecommunications and Computer Science. I currently teach at Hellenic Air Force NCO Academy Computer Networks and C Programming. Moreover, I often give IPv6 Advanced Pentesting workshops organised by the German security company ERNW and their partner HM Training Solutions.

Jun 1993 – Oct 2003 · 10 yrs 4 mos

• During my whole career as an IT/Telecommunications Engineer of Hellenic Air Force, I served as an Officer in several related positions, from an IT/Telecom Staff Officer of the Hellenic Tactical Air Force Headquarters to Chief of the Data Handling and CIS Office at various Units. During my services, I also participated and managed several IT/Telecom related projects, either national or NATO ones.