Speciality: Infrastructure administrator and network security. +6 years of experience installing, configuring and administering Debian, Red Hat Linux Enterprise (RHEL), CENTOS, Archlinux, FreeBSD and OpenBSD. +3 years of Level 3 Network Support +2 years of Network Penetration Services. Experience on administration and configuration of Juniper SRX Junos Series. Experience on administration and configuration of Juniper SSG NetScreen Series.
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On average, 5 Iptables projects are completed every quarter on oDesk.
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I am a Linux Sys Admin with extensive experience in support and installation of Linux servers and data centers for Infoplace. I have more than 7 years of experience in supporting companies in various segments, totaling approximately 200 servers installed. In this role, I was managing two teams, one with three people in Linux support and other with four people in microcomputers support. I was responsible for client relationships and worked directly with the small, medium and large companies support and critical servers. I have much experience with supporting and creating solutions for companies of all sizes, local and remote, with different distributions (CentOS, RedHat, Fedora, Scientific Linux, Ubuntu, Debian), in various environments and types of equipment. Now I'm living in Brazil, but when I have been in Los Angeles for 2 mounths for vacations, I saw a rising up city in my area, so I believe that a remote job would be the best option to start this process, that can soon live and work in los angeles and improve more my skills and contribute to improve for your company too.
Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.
Have more then then years experience. Worked with various open source technologies. Maintain web and database clusters for heavily utilized sites. https://www.linkedin.com/profile/view?id=143797628
Personal Data Born date: 19 June 1976: 1a quarter, 2 building, 52 apartment, Charentsavan, Kotayq region, Armenia, 378562 Phone: (+37493)190611 E-mail : firstname.lastname@example.org Education: June 2002. Have completed PhD Thesis at Yerevan Physics Institute and have degree of Doctor of Physics. Oct.1998. oct.2001. PhD student of Theoretical Physics Department at Yerevan Physics Institute. Sept.1993. June 1998Ã. Yerevan State University, Theoretical Physics Department Scientific workshops: 15.08.2002-21.08.2002 UNESCO workshop: “Integrablility in QFT and Quantum Statistics” (Tbilisi, Georgia) 02.06.2003 - 10.06.2003 Summer school on mathematics in string and field theory at ICTP (Trieste, Italy) Work experience: December 13 2010 – to present Head of IT Administrators Group Network and system administrator Linux (CentOS) an d Windows 2008 Based corporate network ( Active Directory, Gateway, VPN server (ipsec from Linux to Cissco, Linux-Linux via ipsec and pptp), Apache, MySQL Database Administration, Mail, FTP and SFT Servers, Linux based SMS Gatway (kannel), basics of traffic shaping, Proxy Server ( Squid, Kerio, Traffic Inspector) iptables ). ACRA Credit Reporting Bureau October 2001 – to present Scientific researcher: Yerevan Physics Institute, Theoretical Physics Department February 2010 – June 2010: Network and System Administrator, Technical Support for billing system customers “Zang Telecom” LLC Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server (FreeBSD based). Network containing amount 10 computers, mail server, NAT (hardware and sofware based realesation of NAT, Cisco routers and smart switchs), hardware and software support. March 2009 – February 2010 Network and system Administrator Georisk LTD and IGS NSA RA Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server, FreeBSD7.0 based proxy and DNS server ). Purchase hardware for company, do technical support for company employers. Network containing amount 80 computers, DNS, mail and Proxy servers, NAT, IT security, hardware and software support. FreeBSD 7.0 based gateway. 03.05.07 - 01.11.2007 Converse Bank CJSC Charentsavan branch as loan officer 01.12.06 - 01.05.2007 "AMC" LTD Administrator of the FreeBSD 4.0 based web hosting server (Appache) 15.05.2006-15.09.2006 “Ponte Solutions” LTD as physicist researcher (in the cool plasma physics area associated with plasma etching and plasma chemistry questions) 12.2004 - 06.2005 Network Administrator (on SuSE 9.1 Linux machine) at Aghayants ev. Word. LTD 2000-2001 Leading specialist at the Software Provision Department at Emergency Management Administration at Government of Republic of Armenia Language Armenian and Russian (fluent) English (technical) Computer experience: MS Windows 2000,XP,7,8 MS Office 2000/XP/2007, AS-Bank 3.0, MS Windows 2000, 2003, 2008, 2012 Servers (basics of Active Directory), MS Office XP/2003,2007 Linux (Red Hat 7.3, 8.0, 9.0, Redhat EL 4,5,6 Fedora Core 4-18 CentOS 5.x,6.x (advance), FreeBSD 4.5, 5.1, 6.0,7.0,7.2,7.3,8.0, Ubuntu/Debian), TCP/IP protocols, basics of programming with C++, (MS Visual Studio 6, 2005, 2008, Borland C++ Builder 6, C Builder X), knowledge of Linux/Unix servers (Squid, DNS, SSH servers, Apache, PostFix Sendmail, PF, Linux SHELL scripting, iptables, iproute2, tc, load balansing), wireless network, VoIP technlogicts and equipments, HPEM (Hybrid plasma equipment model), MCFP (Monte-Carlo feature profile model), PCMC (Plasma chemistry Monte-Carlo Simulation); Basic principles of CMOS designing. Scientific publications: 1 D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan and P. Sorba J.Phys. A: Math. Gen. 35 (2002) 2353-2359. 2 J. Ambjorn, D. Karakhanyan, M. Mirumyan and A. Sedrakyan Nucl. Phys. B 599 (2001) 547-560. 3. М. Мирумян "Модель Уймина-Лая-Сазерлэнда спина 3/2 в терминах фермионных операиоров рождения и уничтожения "Известия НАН Армении т.37, 4 (2002). 4. М. Мирумян «Фермионная модель Уймина-Лая-Сазерлэнда спина 1» Препринт ЕрФИ 1576(1) 2002. 5. D. Karakhanyan, R. Kirschner and M. Mirumyan Nucl.Phys. B636 (2002) 529-548; nlin.SI/0111032. 6. D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan, P. Sorba J.Phys. A35 (2002) 2353-2360.
Having nearly 10 years of experience with Unix like operating systems. Working as a System Administrator for webhosting clients and undertaking system administration work in Linux and Windows servers. Experience in Linux / Windows server administration. Expert in LAMP Administration. Also, I'm proud to say that my dedication, responsibility, multitasking and optimism are my personal values which got me where I am today. I respect your business, NO downtimes NO mistakes! If you want to save time and money feel free to get in touch. Operating Systems: Ubuntu, Debian, CentOS, Redhat. Cloud Platforms: -Amazon EC2, Rackspace Web servers: Apache HTTP Server, Apache Tomcat, Microsoft's Internet Information Services Database Servers: -Mysql, MariaDB, PostgreSQL, Oracle Monitoring Systems: - Zabbix, Nagios, Cacti, Zenoss core Virtualization: - Proxmox, OpenVZ, KVM, Xen Mail Servers: - Postfix, Dovecot Voip Servers: - Asterisk Other tools used : - Jenkins, Selenium, Wireshark
Self motivated Linux Administrator with experience in management of websites, servers and other hosting services. Having been a hosting company employee I have had a number of problems to solve hence the troubleshooting was part of my job. I also have knowledge of supporting development teams delivering applications/sites to platform. Technologies: Backup services - rsync, Bacula, BackupPC, Amanda, self-written scripts Cloud technologies - AWS, Rackspace Coding - Bash, Python Database -MySQL DNS - BIND9 Fundamental knowledge of SSH, TCP/IP, UDP, SSL, HTTP, HTTPS, DNS, etc. Hosting panels - Hespia, cPanel, ISPConfig , Webmin, Virtualmin Monitoring - Cacti, Nagios Network protocols - LAN: Ethernet, Wi-Fi, VLan; WAN: RIP, OSPF, EIGRP Network security - iptables, fail2ban, Squid, ClamAV, Cisco IOS OS - Ubuntu, Centos, Windows VCS - Git, SVN Virtualization - KVM, VMware Webserver - Apache, Nginx
Currently I'm employed by the very successful VoIP provider, where my main duties are to look after Linux server farm. Occasionally I create web user interfaces for clients, and I prefer python for such tasks, particularly I like Web2py framework. On my daily workflow there are times when I have to do DBA stuff, that is extracting and parsing various medium sized (~300K rows) data sets. Mostly this is a combination of MySQL and Python-Pandas. I do my best to replace MySQL with Postgresql whenever I can, as I like it more. I'm quite skilled in writing bash scripts, which I use in my system administration tasks on daily basis. Standard linux text manipulation tools are always on my menu - awk, sed, grep. I have written a few quite sophisticated awk scripts, which save for me a lot time and processing power. Also I'm quite passionate about networking, configuration of network interfaces, editing routing tables, setting up firewalls, capturing packets and etc. Last but not least important, as I work for the VoIP provider I spend enough time in the Asterisk jungle, no more comments in here :)
- Deployment of ISP solutions - Design and deployment of Network Infrastructure - Deployment of Sun Solaris systems, oracle, mysql, exim and managed services. - Upgrading of cisco pix’s and switches - International traveling to do ISP deployments and server ISP problems. - Standby - Drawing up of technical specifications for deploying ISP solutions as well as doing the Network deployment documentation. - Consultant of new network environment and layout. - Troubleshooting of all systems and remote support. - Q.A. of systems and Sign off on job completion. - Consult customers on new changes and best possible solutions for their environments.