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Last updated: October 1, 2015
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Oleg B.

Oleg B.

Windows, CENTOS & FreeBSD administrator

Russia - Tests: 4

Windows, CENTOS & FreeBSD administrator with over 10 years of hands-on and multi-tasking experience, adept at handling multiple system operations, including installation, upgrade, configuration, administration and maintenance of these systems. TECHNICAL PROFICIENCY Windows Server Administration (Windows 2003,2008,2012) Hyper-V Administration IIS 7.0 Administration Active Directory Administration TCP/IP Network Troubleshooting Working with MS SQL Databases FreeBSD Administration Postfix, Courier IMAP, qmail Administration Apache, PHP, MYSQL Administration

$22.00 /hr
0 hours

Dmitry Gorlov

Dmitry Gorlov

Linux Admin / Oracle certified professional

Russia - Tests: 11 - Portfolio: 1

Under construction... I start my IT career since 1992 using FoxBase by IBM-compatible 286AT computer. Today my phone have more powerfull CPU :-) In Linux from 1997, begun from Redhat 6.0 In Oracle from 2003, begun from 8.1.7 10g OCP Certified in 2007. Microsoft MCP in 2007.

100% Job Success
$20.00 /hr
445 hours

Sergey P.

Sergey P.

VoIP and Linux Engineer

Russia - Tests: 5

OS: linux (gentoo, debian, centos ...), FreeBSD over 10 years using/administration Lang: perl, lua, shell (java, ruby, erlang studying) VoIP: asterisk, freeswitch, gnugk, kamailio/ser (over 7 year administration) PBX: Si2000 (v.5), Definity administration (SS7, ISDN) DB: mysql, postgresql Sec: DMVPN, IPsec, OpenVPN Publish: LaTeX

100% Job Success
$30.00 /hr
76 hours

Martin L.

Martin L.


Bulgaria - Tests: 8 - Portfolio: 5

Over the last eight years I have been involved in the development of web (Internet and Intranet) projects using PHP and part of my work in the last four years was to maintenance high available SQL and noSQL databases - to architect and optimize their structures and queries. Also I'm server administrator with 6+ experience with Linux ( Slackware 6-13, CentOS 4/5/6/7, Fedora, RedHat, Ubuntu, Debian). My skills include, but are not limited to configuring of network and firewalls, web servers (nginx/lighttpd/apache), databases (MySQL and MySQL Cluster, MariaDB, Percona, MongoDB full shareded and replicated clusters, Redis, Memcache and MemcacheDB clusters), message queue servers (RabbitMQ clusters and MemcacheQ), Elasticsearch, Haproxy, GlusterFS Clusters, NodeJS apps, KeepAlive HA clusters. DevOps experience with CoreOS, Google Cloud Compute, Amazon, Docker, Puppet and Ansible.

70% Job Success
$44.44 /hr
2 hours

Denis Ilijevic


Croatia - Tests: 7

I'm interested in new technologies, computer networks, computer security, operating systems and project management. For the last year I have been working with Microsoft and Oracle databases. Beside their procedural languages I learned how to use XQuery and XPath for querying XML documents in both databases. I have experience with BIND DNS and ISC DHCP and network administration, computer security and with Unix/Linux/Window operating systems.. Before accepting any job I will do a detail interview because that's the best way to find out if I can do a job. I guarantee for my work, before any payment I like to show what I did and answer any question you ask me. If my client isn't satisfied with with my work than I won't ask for any money but I will ask where I did wrong. My moto: satisfied client = happy client

$5.00 /hr
152 hours

Marc Gray

PHP/JS/HTML5 Expert Developer and Linux Administrator

United Kingdom - Tests: 12 - Portfolio: 1

I am an expert developer and system administrator with PHP, MySQL, Javascript, CSS3, HTML5 and Linux (I currently use: RHEL, CentOS, openSUSE, Fedora. I have previously used Gentoo and Ubuntu). I have previously developed/configured: - Full eCommerce framework with innovative admin panel (PHP, Javascript) - Automated video transcoding service (PHP, Linux, ffmpeg) - Automated document conversion service (PHP, Linux) - Database driven SFTP service and firewall stored over NFS (PHP, Linux) - Differencing document storage solution (PHP) - Deduplicating backup storage solution (PHP) - Multiple fault tolerant storage servers with 12tb of space (Linux) - Multiple complex scripted firewall setups using iptables (Linux) - Flash website without Flash, with pixel perfect design and advanced effects (Javascript) - MIME Email framework to replace PHPMailer (PHP) - ... and much, much more I also work as a white-hat hacker, where I probe and test servers for vulnerabilities. I have previously been CRB checked and treat all clients with confidentiality. I am happy to sign an NDA.

100% Job Success
$35.00 /hr
241 hours

Rahul Sharma

Rahul Sharma Agency Contractor

WebMaster Admin | Linux | CentOS | RHCE | AWS-EC2

India - Tests: 5

This is Rahul Sharma from Picnframes Technologies. 5+ years experience in Network administration, Database Management, Linux Programming and Networking, CentOS Expert. CERTIFICATIONS:- RHCE, CCNA, MCP MCP ID#6462262 Certified in 2008 RHCE Traine in 2009 CCNA ID#CSCO12251194 Certified in 2012 RedHat certification ID #140-040-692 Certified in EX300 & EX200 in 2014 Configure Cloud Server: Citrix server, ESXi Server 4.0, AWS-EC2, AWS-S3 Migrate Linux Hosting Server Linux Expert- Ubuntu, Mint


$20.00 /hr
4 hours

Ritesh S.

Ritesh S.

RHEL / CentOS System Admin, AWS, WHM/Cpanel

India - Tests: 3 - Portfolio: 2

Handling unmanaged VPS, Dedicated Server with core console (Terminal). -Giving sites maximum Uptime. -Implementing new policy and maintain backup and backend server. -Prevent from websites hack (SQL Injection, FTP bypass, Brute force on SSH Tunnel ) -Maintain All site on Nginx and Kloxo with limited sync time. -Manage shop cart Zencard and Magento site on servers and make server compatible . Penetration Testing: -Client side attacks - Server side attacks - Web applications vulnerability scans - Custom exploiting techniques - Social engineering

100% Job Success
$17.86 /hr
537 hours

Mkhitar Mirumyan

Mkhitar Mirumyan

Network and System Adminstartor (RHEL/CentOS Linux, Debian/Ubuntu)

Armenia - Tests: 6

Personal Data Born date: 19 June 1976: 1a quarter, 2 building, 52 apartment, Charentsavan, Kotayq region, Armenia, 378562 Phone: (+37493)190611 E-mail : 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.

$7.78 /hr
0 hours