• 2006-2007       Research Assistant,
  Institut National des Telecommunications (GET/INT), LOR Dept.

Working on a project concerning design and implementing a AAA architecture for mobile ad hoc networks (WATCHMAN Project).

• 2005-2006       Network Researcher/Administrator (Security Workgroup),
  Iran Research and Academic Network (IRANet)

First I was employed as a member of Routing Workgroup, but gradually I moved to Security Workgroup. We have had studies about the methods of Intrusion Detection, and effective security topologies. We are now working on a new effective intrusion analyzer, besides a dynamic and intelligent monitoring system to increase the performance reaction and defense.

• 2004-2005       Networking Researcher,
  University of Tehran, Informatics Center

I was working on my BS thesis for one year in Informatics Center Network Lab. As a part of my thesis, I was working with IEEE802.1x and other AAA systems on the network access layer, I was also studying on different methods for avoiding ARP spoofing attacks on University of Tehran access network.

• 2001-2005       Network and Server Administrator,
  University of Tehran, ECE Dept.

I was a member of team, responsible for some Internet Servers and ECE Computer Center Network. Wireless HotSpot implementation, redesigning the ECE Computer Center Network and proposing the ECE Network redesign plan over L3 switches are other jobs that we accomplished successfully.

• 2002-2005       Senior Unix/Linux System/Network Administrator,
  ParsOnline Corp

I was working in Server/Network Administration Team as a part time employee. The team was responsible for maintenance of Internet servers and the local network as well. In particular,  was responsible for all monitoring and auditing systems in ParsOnline containing more than 1500 routers, modems and access servers at the time. Meanwhile, we were working on different R&D projects which was assigned from other enterprises and our local administration. We were basically working on developing some systems and software for network and system administration. However, our work involves some national projects such as deploying the ADSL across the country for the first time. We also contributing in many projects on VOIP, IP Telephony and video streaming, video conferencing. On the last year, our division activities focused on the security on different internet servers running on different hardware platforms and operating systems. We were also designing and implementing the security infrastructure of ParsOnline Data Center (PNDC).

• 2000-2002       Network & Computer Technical Support,
  ParsOnline Corp.

  I start studying about networking, Internet broadband access, programming essentials, Windows and UNIX based server administration. My job was troubleshooting and providing services for Internet Broadband access users.