I am an IT professional with over 5 years working experience in various areas, including Linux servers and Network administration; Installation and management of Microsoft servers and repairing hardware such as servers, PC’s and laptops. I am a proficient team-worker with excellent communication skills. In my professional capacity I have served both back in the office and on client site. I am also happy to travel and I have the capacity to work extended hours where required. Technical Skills : •Security: Ethical hacking, IDS (Intrusion detection systems), Syslog, SSH and VPN. •Networking: Cisco IOS 12 (Routers: 800, 1600, 2500, Switches: 2950, 2960, 3750.), Draytek routers, DHCP Server, DNS Server, Network file sharing, FTP, SNMP, Open LDAP, Network Backup •Firewall: sonic wall, ASA, pfSence (firewall distribution based on FreeBSD), IP tables (Linux Software Firewall), Microsoft windows Firewall. •VoIP: Asterisk, Microsoft Communication 2007, Soft Switch, Avaya IP PBX. •programming Languages: C, PHP, Java, Pascal and bash shell scripting. •Operating Systems: Virtualisation (VMware Esxi), Linux (Centos, Red Hat, Ubuntu), UNIX (FreeBSD), Windows server 2003 Windows 2008, Windows 7, Vista and XP. •Application Servers: o Linux: Apache web servers, MySQL, Send mail, postfix mail server, dovecote (POP3&Imap services) , Nagios and Zabbix monitoring system, Squid cache server, Horde (webmail client), Jive (share point) and CPanel, (Web hosting management application) o Widows: Active directory, Exchange, Backup Exec, SQL, Microsoft Office Communication 2007, IIS (Internet Information Services) and ISA cache server. •Protocols: ISDN, X.25, OSI and TCP/IP.

Systems Administrator @ From April 2015 to Present (9 months) London, United KingdomSenior Support Engineer @ From July 2012 to Present (3 years 6 months) London, United KingdomSystem Engineer @ My main responsibility was to provide 24/7 support and running Linux and Windows implementation projects for Help4it customers. A summary of those duties are as follows; Installing, managing and providing support for Asterisk servers ( Asterisk is a VoIP software on Linux) Installing, managing and providing support Linux servers with Lamp (Linux Apache , MySQL and PHP) , File sharing and mail services Configuring and Managing CISCO ASA, Sonic wall and pfSense firewalls Monthly penetration testing for some customers and patchinvulnerabilities Planning Linux and network projects Providing first and second line support for Windows server with Microsoft Exchange , Active directory, File sharing and Backup Exec Providing first and second line support for Windows users In charge of Zabbix monitoring service ( Zabbix is an open source monitoring service built on Linux platform) From June 2011 to June 2012 (1 year 1 month) London, United KingdomTeacher @ Teaching C for robotics, including flowcharts, variables, function, loops, if-statements and algorithms. From September 2009 to December 2009 (4 months) Server Administrator & Network Architect @ Installing switches, Firewalls, routers, wireless access points and servers for the company clients Installing and maintaining Microsoft Windows servers and deploying network services Providing first and second line IT support Managing Linux servers for web hosting of 40 customer businesses servers Second Line technical support for the web hosting services and dynamic websites. Providing consultancy services for networking and security solutions The provision of networking solutions: I designed networks and provided business solutions for both Microsoft and Linux environments Providing VOIP solutions From September 2006 to July 2009 (2 years 11 months) Network Manager ( contractor) @ Developing and managing the corporate network across 4 buildings and more than 400 computers Changing topology of networks Configuration of routers Regulation of security policy Installation of ISA 2004 From August 2006 to November 2006 (4 months) Teacher @ I taught the following key topics: Network Security Basics Basics of PC, servers, networks and protocols Security tools such as scanners, understanding exploits, attacks, vectors such as DoS, SQL injection, XSS, sniffing, social engineering Security manager tasks, such as security policy and how to protect networks From July 2006 to September 2006 (3 months) Security Analyzer @ Working in the ethical hackers and the penetration testing team Pen testing of Linux servers and networks Performing the role of a security searcher Penetration testing of a ISP projects for a banks internal network Researching security in Linux, and networks to provide security solutions Researching firewall and proxy solutions. I was also the server administrator, maintaining FreeBSD with apache web server, PHP, MYSQL, FTPS services From March 2005 to June 2006 (1 year 4 months)

Arash Janzadeh is skilled in: Linux, Apache, IIS, MySQL, C++, PHP, Squid, ISA, TCP/IP, VMware, DHCP, DNS