Name: Nikos Kogios
Location: Athens, Greece

Born: Germany, 09.01.1974
Nationality: Greek
e-mail: nkogios (at) gmail.com

Profile
Systems and security engineer with many years of experience in the IT Industry. Committed to systems architectural design , administration and security.

Specialized in high availability technologies (clustering, load balancing), and performance - security metrics - optimization of web application servers. Great design and administration skills on both Linux - Unix and Microsoft Operating systems.

Work Experience

• 02/2009- Present. OTE S.A., Security Engineer, IT Security and Audit Department.
  - IT Audits - Risk / Vulnerability assessments.
  - IT Security procedures.
  
  
• 05/2008- 02/2009. OTE S.A., Systems Architect / Engineer, IT, Section of Customer IT Systems Infrastructure.
  - Systems architectural design, security and performance tests, optimization for OTE Portals (www.ote.gr, ebill.ote.gr, www.oteshop.gr, OTE Dealers, www.healthpages.gr).
  
  
• 04/2004-05/2008. OTENET S.A., Senior Systems Architect / Engineer, IT, System & Services section.
  - Technical owner / lead systems engineer in systems architectural design / implementation for application Servers Cluster / Load Balancers Cluster for OTENET portal (www.otenet.gr), Broadband Portal (www.zuper.gr), Corporate Site (corporate.otenet.gr).
  - Systems Integration: Technical owner / responsible for systems architectural design for ELTA hosted exchange 2003, designed to support 500.000 mail users.
  - Systems Integration: Technical owner in systems architectural design / implementation for Tomcat Cluster Servers / RAC Oracle Cluster for epicos.com.
  - Lead systems engineer in Performance / Security stress test procedure / optimization in order to provide high quality of service.
  - Escalation point for every operational / systems design issue regarding datacenter systems and services.
  - Participate in the company’s product / service development cycles and designing IT solutions for major customers.
  - Technical owner / lead systems engineer in systems architectural design / implementation for OTENET ERP System (Redhat Cluster / Oracle Application Server).
  - Systems architectural design / implementation for Search Engine / Indexing service Anazitisis.gr.
  
  
• 10/2001-04/2004. OTENET S.A., Systems Administrator, IT, Datacenter section.
  - Technical owner / lead systems engineer in systems architectural design / implementation for Billing / Mediation / Provisioning Systems (5 node Veritas HA Cluster).
  - Technical owner / lead systems engineer in systems architectural design / implementation for Linux Web Hosting (Linux Load Balancer Cluster, Web Servers Clusters, MySQL Cluster).
  - Implementing Linux Servers For Athens Olympic Games 2004 portal (Internal Load Balancers, MySQL Cluster etc.).
  - Systems architectural design / implementation for Intrusion Detection Systems (Snort IDS/ NTOP/ LogAlert – OTENET and Athens 2004).
  - Systems architectural design / implementation for Centralized Syslog Servers (OTENET, Syzefxis).
  - Systems Integration: Technical owner in systems design / implementation for OTE-Estate ERP, Oracle application server.
  - Systems design / implementation for monitoring systems (Nagios).
  
  
• 03/1999-10/2001. Freelancer Web Designer.
• 07/1996-10/2001. Metropolis S.A., Computerisation.

Education
- 2001. IEK Helioupolis, Information technologies / Intranet / Internet Services.
- 1994. TEI Peiraia, Electrology Dept.
- 1991. High school, Pagrati, Athens.

Certifications
- 2006.  Microsoft Certified Professional (MCP), Installing, Configuring and Administering Microsoft Clustering Services.
- 2005.  Solaris 9 Certified System Administrator (SCSA), (Exams 310-015, 310-014).

Trainning
- 2008. Oracle Application Server 10g: Administration II (Oracle).
- 2008.  Sun System Identity Manager, Access Manager, Directory Server (OTE).
- 2006.  Project Management (OTE Academy).
- 2006.  Websphere Application Server Administration (New Horizons).
- 2005.  Solaris 9 Advanced System Administration / SA-299 (New Horizons).
- 2004.  IBM ESS Storage Administration (OTENET – IBM).
- 2003.  Solaris 9 Intermediate System Administration / SA-239 (New Horizons).
- 2003.  Veritas Cluster Administration (Performance).
- 2002.  Sun Cluster 3.0 Administration / ES-333 (New Horizons).
- 2001.  Lotus Domino Mail Server (Fillipou).
- 2001.  IP Networking – Systems Administration (OTENET).

Languages
- Greek, mother tongue.
- English (Univ. of Cambridge First Certificate in English).

Skills
Operating Systems
- Linux (Redhat, Suse, Debian, Gentoo, Ubuntu).
- Unix (SUN Solaris, HP-UX, AIX).
- Windows (98/NT/2000/XP/2003).

Clustering / High Availability
- Veritas HA Cluster.
- Microsoft Cluster.
- Sun Cluster.
- Redhat HA Cluster.
- Linux LVS Cluster, Linux Heartbeat Cluster.

Storage Systems
- IBM Enterprise Storage Server (ESS) configuration.
- Brocade Fiber Switches Zoning configuration.

Web / Application / FTP Servers
- Apache / Tomcat.
- IIS / Microsoft FTP.
- IBM Websphere.
- Oracle Application Server.
- ProFTPd.

Databases
- MySQL / Postgresql.
- Oracle.
- Microsoft SQL.

Security / Performance Auditing
- Vulnerability assessment and penetration testing techniques.
- Performance auditing / analysis / reports.
- Security auditing reporting.
- Cisco based ACL’s.
- Linux Netfilter – Iptables.
- Intrusion Detection Systems.

Services
- Routing / Firewalling / Name Services / Wireless networking.
- Microsoft Media Services.
- Mail Servers (Sendmail, Exchange, Domino Lotus, Postfix, IMail).
- Statistics applications (Webtrends, Webalizer, Livestats).

Programming Languages
- C, Bash, Pascal, PHP, Basic, HTML, Perl.
- Applications
- MS Office, MS Project, MS Visio, Media Encoder.
- Macromedia’s Dreamweaver, Flash.
- Eurofasma.

Interests
- Designing / updating of portal http://www.syslog.gr/.
- Music.
- Literature, Poetry.
- Chess.

Dream
To build a 1000 node Linux Cluster to help research for cancer cure.