Technical Experience

Knowledge of programming languages / operating systems:
Python, Perl, C, Modula-2, CASE 4GL, Assembler, Pascal, Basic, Fortran, Cobol.
Unix(Linux), VMS(DEC), SMP (Symmetrical Multi Processing), OLTP (Online-Transaction Processing Systems).

Knowledge of Information Management Systems & DBMS:
BASIS (Batelle), MISTRAL (Bull), STAIRS (IBM).
Rdb (VAX), Ingres (VMS), Progress (Unix), Oracle και MySql (Unix), Lotus Notes (Unix, Windows), Εργαλεία Office (Microsoft), OpenOffice (Linux).

Knowledge of Internet/Intranet Technologies:
Web, HTML, DNS, Proxy services, SMTP/POP Mail and FTP services, Remote Access Server (RAS), Routing RAS (RRAS), Socket programming, VMWare, VPN, WiFi, VoIP.

Knowledge of Telecommunication Networks:
LAN & WAN devices:
Terminal Servers (Racal-Interlan, Annex, Penril Datability), Ethernet-Token Ring-FDDI Hubs/Concentrators (Racal-Interlan, Chipcom-3Com, RAD, Penril Datability, Bay Networks), Ethernet Level 3 switches (Cisco, Bay Networks, Nortel), Remote Access Servers (Penril Datability, Bay Networks-Nortel, Cisco), Routers (Cisco, Wellfleet-Bay Networks-Nortel).

X.25 PADs & Multiplexers (Racal-Datacom, Penril Datability), Bridges (Penril Datability), Routers (Cisco, Retix, Chipcom-3Com, Bay Networks), ATM switches (Cisco, Bay Networks, Fore-Marconi), Voice/data multiplexers (Penril Datability, ACT), Wireless terminals (Telxon).

Experience in Network Protocols and Technologies
Routing Protocols (IP Advance Routing: OSPF, BGP, MPLS).
IPv6, the new IP addressing and IP Routing of Internet.
WAN technologies (HDLC, PPP, X.25, ISDN, Frame Relay, ATM).
Wireless (802.11a/b/g) and VoIP technologies (SIP, Asterisk).
Multimedia technologies RTP, SIP, H.323, SCTP, RSVP, QoS (Traffic shaping).
Building Structure Cabling Technology and Standards (MOD-TAP, AMP).
Network Management Systems (Cabletron Spectrum, HP OpenView).
Network Monitoring & Troubleshooting (Cisco ASDM, OptiView Network Analyzer Fluke).
Network Security (Firewall PIX Cisco, CiscoWorks VPN/Security Management System, VPN-MPLS)
Visual Analytics and Augmented Reality.

Certification Cisco-CCNA (trainer of the trainers).