Linux System Administrators & Developers

Showing 11,546 freelancers

Linux System Administrators & Developers

Showing 11,546 freelancers

Get Your Linux System Administration Project Started Today!

Post your Linux system administration project on oDesk and find Linux experts and system administrators to assist you with your Linux server installation, configuration, maintenance and technical support tasks. These experienced consultants can manage your Linux network and infrastructure security or perform backups and security scans or updates and identify threats on your Linux OS system. They can also deploy web applications, eCommerce systems and content management systems on your Linux server, or migrate your virtual machine to a physical Linux server. You can also find a professional Linux sysadmin, experienced in system monitoring and control tools, to manage and optimize your Linux-based server farm.

Linux is a collection of free and open-source, cross-platform, Unix-like operating system distributions, among which the most widely known are Ubuntu, Red Hat and Slackware. On oDesk, the world’s largest online workplace, you can find experienced Linux system administrators to set up dedicated Linux web servers, install web hosting control panels (like ZPanel, Plesk, cPanel or DirectAdmin), set up SQL databases and file managers or configure Linux server security and accounts.

Browse Linux System Administration job posts for project examples or post your job on oDesk for free!

Linux System Administration Job Cost Overview

Typical total cost of oDesk Linux System Administration projects based on completed and fixed-price jobs.

oDesk Linux System Administration Jobs Completed Quarterly

On average, 612 Linux System Administration projects are completed every quarter on oDesk.

612

Time to Complete oDesk Linux System Administration Jobs

Time needed to complete a Linux System Administration project on oDesk.

Average Linux System Administration Freelancer Feedback Score

Linux System Administration oDesk freelancers typically receive a client rating of 4.78.

4.78

Last updated: March 1, 2015

  • Expert in Asterisk, A2billing, Elastix and AWS, Cloud telephony

    Over the last nine years I have actively engaged in designing and implementing VOIP telephony related infrastructure which involved in installation, provisioning and commissioning of highly complex VOIP solutions using Asterisk, A2billing, Elastix, Asternic, PIAF, Trixbox and Amazon AWS cloud … more

    Over the last nine years I have actively engaged in designing and implementing VOIP telephony related infrastructure which involved in installation, provisioning and commissioning of highly complex VOIP solutions using Asterisk, A2billing, Elastix, Asternic, PIAF, Trixbox and Amazon AWS cloud telephony, Azure, HP Cloud, Rackspace and Digital Ocean Asterisk telephony installation. Provides call centre solutions using Asterisk, A2billing and Asternic. G729/G723 codec installation also Genband C3, Genband G9, Genband T800, Genband S3, Nextone VOIP Support.  less

    asterisk network-administration computer-networking ssl a2billing elastix voip-administration freepbx amazon-ec2 linux-system-administration 00 more less
    • $16.00 HOURLY RATE
    • 4.9
    • 750 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • UNIX and security expert, network and system administrator

    I offer the following key services: o Network and System Administrator Services o Information Security Services o IP-PBX and VoIP softswitchs: installation and maintenance o Software development: Web, desktop and server applications o SEO o Complex solutions for business-process automation … more

    I offer the following key services: o Network and System Administrator Services o Information Security Services o IP-PBX and VoIP softswitchs: installation and maintenance o Software development: Web, desktop and server applications o SEO o Complex solutions for business-process automation Core Competencies o Network and System Security o Data Integrity and Recovery o Analysis and Planning o Risk Assessment and Cost Benefits Analysis o Research and Development o Project Management Experience Platforms: IBM, Sun SPARC, MikroTik, Cisco, Huawei, D-Link, Edgecore. OSs: UNIX (FreeBSD, OpenBSD, *BSD, Solaris), Linux (Debian, Ubuntu, Gentoo, Red Hat, SuSe, uLinux, ASP, Mandrake, Fedora Core), CiscoIOS, MikroTik Router OS, VRP (Huawei), Windows 95/98/NT/ME/200/XP/2003/Vista/7/2008. Languages: C/C++, UNIX Shell Scripting (Shell, sed, awk), Delphi (Pascal), Perl, PHP, SQL, T-SQL, Assembler (Intel and AT&T SysV/386 syntax), GTK+ applications, Erlang, HTML, CSS, JavaScript, JQuery, XML, XSLT, DTD. Databases Engines: PostgreSQL, MySQL, Oracle, SQLite, Mnesia, MS Access, Sybase, DB2. CMS: WordPress, Bitrix, osCommerce, Joomla, RoundCube. Panels: CPanel, Plesk, ISPManager, Webmin. Networking: TCP/IP, ISO/OSI, IPv6, Ethernet, VLAN (dot1q), ARP, VRRP, CARP, MPLS L2, MPLS L3, STP, GVRP, PPPoE, VPN, PPTP, L2TP, IPSec, OpenVPN, SNMP, SSH, XMPP, SIP, h323, BGP, OSPF, RIP, IRC, AJAX, Netflow.  less

    linux-system-administration system-automation security network-security network-administration unix-system-administration freebsd openbsd unix-shell php nginx apache-administration mysql postgresql tcp-ip vpn ipsec openvpn amazon-ec2 amazon-s3 amazon-rds amazon-web-services bash lamp-administration 00 more less
    • $35.00 HOURLY RATE
    • 4.9
    • 247 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 9 TESTS
    ASSOCIATED WITH:
  • Senior UNIX System Engineer, LAMP, LEMP, Network Security, Cloud.

    Expert UNIX system administrator and network engineer. Got a problem? I can solve it! For more than 15 years I have been the I.T. backbone and support for many online companies. I use the most up to date standards … more

    Expert UNIX system administrator and network engineer. Got a problem? I can solve it! For more than 15 years I have been the I.T. backbone and support for many online companies. I use the most up to date standards for any project I am involved in. I work extremely quick and efficiently. If you have a problem let me help you solve it. OS: Linux - Expert, FreeBSD - Expert, AIX - Expert, HP-UX - Expert, Macintosh OS/X - Expert, Windows Server - Proficient Cloud services: AWS, Rackspace, OpSource, Linode Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios, Monit, Munin, Cacti Scripting: bash, perl, shell Virtualization: OpenVZ, Xen, SolusVM Mail servers: Postfix, Exim, Sendmail, Dovecot Control panels: cPanel, Plesk, Direct Admin, Webmin/Virtualmin, ISPconfig, OpenPanel Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, backups, monitoring etc), firewalls (iptables, ipfw, pf)  less

    html xhtml css network-administration technical-writing data-entry cpanel plesk nagios wordpress microsoft-excel microsoft-word adobe-dreamweaver apache-administration php freebsd openbsd aix linux-system-administration dns solaris-administration rackspace-cloudservers exim postfix ssh bash unix-shell operating-systems-development amazon-ec2 amazon-web-services eucalyptus-cloud ssl centos lamp-administration mysql phpmyadmin domain-migration apache-tomcat load-balancing virtualization wp-ecommerce joomla magento git github svn pci-compliance mac-os-app-development 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 188 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
    ASSOCIATED WITH:
  • Linux System Admin | Amazon AWS Expert | AWS Consulting Partner

    2+ Experience in : System Administration - Amazon AWS (EC2/S3/RDS/SES/ElasicCache/Glacier/ELB) , Rackspace and DigitalOcean - Installing, Configuring and maintaining Linux (Cent OS, Ubuntu, Debian, Fedora) - Load Balancing (HAproxy/Nginx) - Reverse Proxy - Webservers (Apache, Lighttpd, Ngnix, IIS) - MySQL Clustering … more

    2+ Experience in : System Administration - Amazon AWS (EC2/S3/RDS/SES/ElasicCache/Glacier/ELB) , Rackspace and DigitalOcean - Installing, Configuring and maintaining Linux (Cent OS, Ubuntu, Debian, Fedora) - Load Balancing (HAproxy/Nginx) - Reverse Proxy - Webservers (Apache, Lighttpd, Ngnix, IIS) - MySQL Clustering (Galera/XtraDB and NDB) - Deploying, configuring and troubleshooting opensource control panels (zPanel, Webmin, EHCP, ISPConfig) for Webservers - Scripting in bash, PHP and SQL - Fine tuning Linux systems and applications - Configuring, monitoring, performance tuning and Troubleshooting DNS, NFS, FTP, Database(MySQL/Oracle), Proxy(Squid) Servers in Linux 3+ Experience in : Web Application Development - PHP / MySQL - Moodle / Wordpress / Prestashop / OpenCart Expert - HTML / HTML5 / XHTML / XML - JavaScript / Ajax/ jQuery / Prototype - CSS3/ Twitter-bootstrap - OOP / MVC  less

    php mysql oracle-database html5 javascript css3 ajax twitter-bootstrap moodle prestashop wordpress linux-system-administration apache-administration nginx lighttpd amazon-web-services bash 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 130 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 2 TESTS
    GROUPS:
  • Senior Rails / Ruby developer

    4+ years experience using TDD with Ruby (Rails & Sinatra) My career in IT sector started from an Internet start-up (a new technology in Internet advertising). Having started as a Junior programmer I've quickly grown to highly qualified Senior developer … more

    4+ years experience using TDD with Ruby (Rails & Sinatra) My career in IT sector started from an Internet start-up (a new technology in Internet advertising). Having started as a Junior programmer I've quickly grown to highly qualified Senior developer. I also developed myself as a Team Leader and later as a Project Manager. I have widely distributed with highly rated professional skills in variety of informational technologies and other areas. - Experienced at developing and managing a highly loaded systems; - Gained few years experience in developing mobile WAP and HTML5 games; - Experienced at developing a booking ticket system (airplane/boat/bus/train). - Developed a wide range of websites using HMTL5, CSS3, Ruby, Ruby on Rails, Sinatra, AngularJS, MySQL, SQLite, PostgreSQL, MongoDB, Sphinx, Redis, nginx, phonegap, php, etc. I have the great interest of creating architecture and bussiness solutions for big corporate projects. My colleagues see me as highly motivated and oriented on a the best result. I'm looking for some interesting projects for long term cooperation.  less

    ruby-on-rails ruby javascript mysql html css jquery seo angularjs linux-system-administration 00 more less
    • $49.99 HOURLY RATE
    • 5.0
    • 670 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • MSc in Software Engineering

    I spent 6 years developing software for IPTV Set Top Boxes. Currently I am working with automotive industry. My experience achieved during this period gives me a title of expert / senior software developer engineer specialized in c, c++ and embedded … more

    I spent 6 years developing software for IPTV Set Top Boxes. Currently I am working with automotive industry. My experience achieved during this period gives me a title of expert / senior software developer engineer specialized in c, c++ and embedded Linux. I have also an experience in network protocols, IPTV, DVB. During last two years I developed virtualized embedded devices which are put in cars (trucks). Also have an experience with vrtualization of the Linux kernel drivers.  less

    c c++ embedded-linux bash computer-networking xml embedded-systems atlassian-jira scrum automotive-engineering tcp-ip linux-system-administration ubuntu 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 9 HOURS
    • POLAND
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Amazon AWS Expert , Office 365 Migration, Azure Expert

    Essential skills and technologies: =========================================================== OS: Windows 2008/R2, Windows 2012/R2, Redhat/CentOS IaaS/PaaS/Cloud: Amazon AWS, Microsoft Azure, Windows VPC, Cloudshare, HP Cloud Matrix, Interoute Cloud, Office 365 CM & Automation : System Center Configuration Manager, System Center Orchestrator, Group … more

    Essential skills and technologies: =========================================================== OS: Windows 2008/R2, Windows 2012/R2, Redhat/CentOS IaaS/PaaS/Cloud: Amazon AWS, Microsoft Azure, Windows VPC, Cloudshare, HP Cloud Matrix, Interoute Cloud, Office 365 CM & Automation : System Center Configuration Manager, System Center Orchestrator, Group Policy Management, Web & App servers: IIS, Apache, Nginx, Varnish Databases: MSSQL, Mysql, PostgreSQL, CouchDB, Redis Monitoring: System Center Operations Manager, Nagios, Icinga, Zabbix, Monit, Munin, Cacti Virtualization: Hyper-V, Citrix Xen Server, KVM, Xen, VMWare Mail servers: Microsoft Exchange 2007/2010/2013, Postfix, Zimbra, Qmail, Exim Backups: System Center Data Protection Manager, BackupPC, VSS backups HA: Network Load Balancer, Microsoft Cluster Programming & Scripting: Powershell, Perl, Bash Networking: DNS, DHCP, NFS, Vyatta OS, Quagga, Firewalls, Cisco/Dell routers & switches, OSSEC & IDS Other: Atlassian products(Jira,Confluence, Bamboo), Microsoft Sharepoint, Agile, ITIL ========================================================== My Public Microsoft Portal could be accessed at: https://www.mcpvirtualbusinesscard.com/VBCServer/krasi.kosev/profile  less

    amazon-web-services amazon-rds devops amazon-s3 windows-azure ms-office-365 microsoft-exchange-server powershell microsoft-windows-server linux-system-administration 00 more less
    • $45.00 HOURLY RATE
    • 4.9
    • 208 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Experienced GNU/Linux System Administrator and Programmer

    Developer and Administrator with over 7 years of experience with various technologies including GNU/Linux personal computers and servers, Atmel AVR platforms, Git, KiCAD EDA, and the Go, Java, and C programming languages. My experience includes the hardware and software … more

    Developer and Administrator with over 7 years of experience with various technologies including GNU/Linux personal computers and servers, Atmel AVR platforms, Git, KiCAD EDA, and the Go, Java, and C programming languages. My experience includes the hardware and software design of a full home automation system. I am prepared to perform many tasks, including setup and administration of servers, programming in C, Java, or Go, PCB design, and project management.  less

    linux-system-administration nginx google-go go-programming-language git c arduino atmel-avr java 00 more less
    • $22.22 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
  • Perl hacker and Voip Expert

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting … more

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies. click here to know me more: https://click.2-call.me/apa1  less

    asterisk a2billing freeswitch perl linux-system-administration c++ 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 2192 HOURS
    • CHINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
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