Linux System Administrators & Developers

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Post your Linux system administration project on Upwork 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 Upwork, 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 Upwork for free!

Linux System Administration Job Cost Overview

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

Upwork Linux System Administration Jobs Completed Quarterly

On average, 628 Linux System Administration projects are completed every quarter on Upwork.

628

Time to Complete Upwork Linux System Administration Jobs

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

Average Linux System Administration Freelancer Feedback Score

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

4.78
Last updated: May 1, 2015
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  1. Devon Kurland

    Devon Kurland

    Linux System Administration Professional

    United States - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    With over 7 years of experience, I am prepared to tackle the most challenging requests in the wonderful realm of Linux and the web at large. I have experience not only with Linux, but also with Windows and Mac OS X. I also have a working knowledge of SQL, python, bash, and perl.

    $50.00 /hr
    2,089 hours
    5.00
  2. Minh N.

    Minh N.

    Server Admin/Linux/Unix/AWS Ec2/ Nginx /WordPress/Magento/Odoo

    Vietnam - Last active: 2 days ago - Tests: 7 - Portfolio: 15

    I have been Server Admin and Web Developer for over 10 years, I worked with many top-rated websites all over the world. I am expert with LEMP and LAMP system, very good at speeding up servers and sites. For some personal reasons, I MOVED back to Vietnam. I am also working at Elance and Freelancer. If you need references, please don't hesitate to contact me. http://vincosolution.com/ My Blog: http://blog.vincosolution.com/ My Linkedin: https://www.linkedin.com/profile/view?id=204192625 Security Portfolio: http://goo.gl/75iNSS http://packetstormsecurity.com/files/author/8194/ http://sangte.blogspot.com/ Hall of Fame: https://www.apachefriends.org/about.html - Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu, FreeBSD, gentoo, Mac OS X Server) - Windows Maintaince / Troubletshooting (Windows Server 2003-2012, Hyper-V, Lync, SharePoint Server 2010-2013) - Virtualization: (Vmware Esxi 5.x, Openvz, Virtuozzo, Xen, KVM, Vserver) - Cloud hosting (Amazon EC2, AWS, S3, RDS, simple Cache) - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies, tcpdump) - Web servers (apache, nginx, lighttpd, tomcat, ssl installation and troubleshooting) - Caching ( apc/xcache/memcached/varnish/nginx) - Load Balancer (Nginx/Haproxy/Hardware LB) - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot) - Bulk marketing (Dkim, spf, high speed/inboxing, interspire) - Automation (puppet, perl/shell/awk scripting) - Monitoring (nagios, zabbix, munin) - Hosting Control Panels (Cpanel/WHM, Plesk, Directadmin, ISPconfig..). - Mobile Application (Android / iOS / Windows Phone)

    Groups: Bluehost Developers and Designers

    $38.89 /hr
    1,768 hours
    4.86
  3. Maxim Vorobey

    Maxim Vorobey

    Senior Software Engineer/Architect

    Russia - Last active: 1 day ago - Tests: 3

    I am a web application developer specializing in PHP/JS with 15 years of experience. strong OOP knowledge, MVC etc php, mysql, html, css, less, js, coffeescript twitter bootstrap, jquery, backbone.js, angular.js ajax, json, xml C/C++/Objective-C (just for fun) load balancing, big data, high traffic data scraping, data parsing saas, soap, rpc, rest phpunit, phpspec, tdd, bdd, xdebug symfony, symfony2, zend2, doctrine2, bitrix mysql, postgre, mongo (clustering, replications) memcached, redis, rabbitmq, sphinx ubuntu/debian/centos/archlinux/osx nginx, lighthttpd, node.js, apache2 git, mercurial, svn opengl, glsl api: paypal, facebook, twitter, livejournal, vkontakte, jira, mailchimp, mandrill, zendesk, amazon aws agile/scrum: jira, redmine https://github.com/n3b

    $69.00 /hr
    2,372 hours
    5.00
  4. George Saliba

    George Saliba

    Electronics Design Engineer / Programmer

    Malta - Last active: 1 day ago - Tests: 9

    Fully qualified electronics design engineer with over 10 years experience in the design of electronic systems. I have experience in various area of electronic design including: embedded systems, analog circuits, high power switching controls, low power battery operated devices, wireless designs, microcontroller (AVR, ARM, PIC...) systems and design of high performance processor systems running embedded Linux. My primary EDA is Altium Designer.

    $40.00 /hr
    7,414 hours
    5.00
  5. Alper OKUTGAN

    Alper OKUTGAN

    Professional PHP Developer and Web Scraper

    Turkey - Last active: 1 day ago - Tests: 8 - Portfolio: 33

    Top-notch web scraping expert using PHP/cURL, having scraped hundreds of sites with billions records. Always deliver perfect quality with quick turnaround. Craigslist, Yipit, Crunchbase, Twitter and Instagram are just a few examples. My major expertise is web crawling / data minning, I am also interesting in solving complex challenges, difficult problem solving, and learning to enhance my programming skills with PHP programming language. I prefer to work for short-time but difficult projects. So I can give my experiences to the task effective. I have a degree in Computer System & Engineering and have 15 years experience coding. I have been working in the hosting industry (Hostgator, GoDaddy, Bluehost) for more than 10 years and highly experienced using hosting software such as WHM / CPanel / Plesk / Virtuozzo / Webmin / Virtualmin. (Installation and Management) Technical background; I began programming on C64s with QBasic language in the 1990s. Following graduation, I developed various programs with Borland Delphi for computing hardware faculty from 2000s, and I am still programming for the automotive industry (OBD/OBD2). I professionally created various web development projects with PHP and Perl languages since 2002. I began working with FreeBSD in 2002 and Linux in 2004 and I have been working as an hostadmin for various servers like Debian and Ubuntu operating systems since 2005. I have founded to BACOMputer, which my first company on 2005, and I am still working as a project manager for my own company. I began working with clients through oDesk since 2009, and I have successfully completed many contracts between 2010 - 2015. The subjects of my recently works; ° Web scrapping / mail scrapping with PHP/cURL. My PHP codes also can be run as standalone programs on the linux shell and/or with crontab. ° PHP-MySQL works / Admin Panels. ° Delphi or PHP based text file conversion programs. ° Hosting services and transfers. ° OpenVPN authentication systems (PAM / Google Authenticator / MySQL / LDAP / Radius) ° Creating Wordpress plugins and themes. HTML to Wordpress. * OPEN-WRT Linux distributions. ° Malware code cleaning on the sites and servers. (I have developed my own tools for finding malicious codes and infected files as quickly and efficiently) ° Decompiling/Tracing Flash applications/games. ° Radio, Audio stream program installations and configurations. Shoutcast, Icecast and Flashcast solutions. ° Software installation on Linux. Ftp servers, Apache, Nginx, PHP and MySQL installations/configurations. ° jQuery and resolving jQuery issues and conflicts. ° JWplayer, Flowplayer video player installations and delayed messages/auto redirecting projects ° Lightbox, Greybox, Laytbox and other jQuery (auto) popup/popunder solutions. Locked pages with javascript alerts. ° .htaccess works (Mass redirections, SEO based links, permalinks)

    Groups: Bluehost Developers and Designers

    $45.00 /hr
    1,511 hours
    4.99
  6. Dan C.

    Dan C.

    Expert PHP/JavaScript developer & AWS solutions architect

    Romania - Last active: 1 day ago - Tests: 13 - Portfolio: 4

    I am a full stack software engineer specialized in building PHP / JavaScript based web applications. I'm also focused on cloud computing, more specifically on AWS (Amazon Web Services). In my experience in software development, I have played a key role in planning, architecting, building, releasing & maintaining software products. In 2012, I cofounded Sitedity, a start-up based in Brasov, Romania that provides a website creation platform for small businesses and individuals (SaaS). Here are some of the technologies that I'm focusing on: PHP / JavaScript / CoffeeScript / HTML5 / CSS3 / RDBMSs (MySQL, PostgreSQL, SQLite, etc.) / NoSQL DBs (Redis, MongoDB, etc.) AWS / EC2 / S3 / CloudFront / DynamoDB / SimpleDB / RDS / CloudFormation

    $60.00 /hr
    1,241 hours
    5.00
  7. Nikolay C.

    Nikolay C.

    Brainbench certified JSE/JEE dev, DB dev, Sys-Arch

    Ukraine - Last active: 1 day ago - Tests: 2 - Portfolio: 11

    Would you like to find a powerful Java-dev? If so, please read further... 1. Intentions I'm working as a free-lancer more than 2 years already, and worked > 12 years in scientific and software engineering areas. I'm here because I'm looking worldwide for interesting work related to software development using the following technologies (some or all): - Java 5/6/7 (JSE, Swing, CORBA, Web Services, etc.) - JEE5/6 (EJB3, JSF, Hibernate, etc.) - GWT, Spring, Struts, etc. - And other JSE/JEE-related frameworks - GlassFish, Tomcat, JBoss, Jetty, etc. - JME (CLDC 1.1, MIDP 2.0) and Android - Maven, Ant, etc. - Oracle, MySQL, PostgreSQL and other DBMS - Some sub-tasks could be related to C/C++ with STL (but NOT the whole project!) - UML and/or Agile Modeling - Well-organized Agile processes - Etc. It would be nice to be involved into software concepts and architecture development. Also it would be nice to have possibilities for applying my initiative and creativity. I'm ready to work as a free-lancer for the beginning up to 40+ hours per week), and you may hire me as a full-time employee as well. I'm ready to move mostly to any country or city. In such case I'm ready to start as a developer (or senior developer), but with possibility to grow up to TL, and further up to SA or PM (of course, starting from TL or SA would be nice). 2. Education - University Master Degree in the area of Informatics and Computer Systems 3. General Skills I have a wide working and scientific experience with dozens of technologies (> 14 years). The most deep experience I have with the following techs: - JSE5/6 and J2SE (Java Core, Multithreading, AWT, Java2D, Swing, CORBA, WebServices, Networking, etc.) - since 1998 - JEE5 (EJB3, Hibernate3, JSF, CometD, Jetty, Tomcat, JBoss, GlassFish) - about of 5 years - J2ME (CLDC 1.1, MIDP 2.0, WMA) - about a year - Other Java techs (Jakarta Commons, Log4J, Velocity, Maven, Ant, etc.) - many years - Android development (support about 0.5 years) - C/C++ and STL - since 1995 (STL from 2001) - Oracle 9i/10g, MySQL, PostgreSQL, InterBase - since 2000 - OOA/OOD/OOP and UML Modeling - since 1995 (UML from 2001) Large experience with the following platforms and tools: - Windows - since 1995 - Linux/UNIX - since 1997 - MS Office (incl. Visio and Project) and Star/OpenOffice - since 1997 - IntelliJ IDEA, NetBeans, Eclipse - since 2001 - C++Builder and Delphi - since 2000 - PL/SQL Developer - since 2005 - Enterprise Architect and other UML tools (Rational Rose, Poseidon, etc.) - since 2001 Git, SVN and CVS - since 2001 Management Skills - since 2004 (worked on TL and PM positions) Architect Skills - since 2000 (designing concepts, business models and architectures for quite complex scientific, B2C and B2B applications) Language Skills: - Russian - native - English - fluent, working language since 2001, ~1000 pages of docs written - German - intermediate (quite fluent, but non-perfect) - Ukrainian - can understand in 100%, cannot speak/write fluently 4. Contacts - You can contact me via oDesk. Usually online (GMT): - 10:00am - 5:00pm - 7:00pm - 10:00pm

    $40.00 /hr
    14,250 hours
    5.00
  8. Luke Jurgs

    Luke Jurgs

    Senior PHP/Javascript/SQL Developer

    Australia - Last active: 1 day ago - Tests: 5 - Portfolio: 3

    Over the last 12 years I've worked with PHP, MySQL/PostgreSQL/MSSQL, JavaScript, HTML/CSS and related web technologies to create a large number of websites and web applications. I've worked for a number of startups and for a large listed company. My strength is the knowledge I have of what the web application stack is capable of, how interacts with the underlying server software/hardware and browser. This insight allows me to build robust, sophisticated and fast software. Most recently I have been building thick client side applications using Backbone.js and Require.js. I believe that the future of consumer software is going to be dominated by this type of software stack. It gives me great pleasure to be building the future right now. I also have excellent Ubuntu/Debian/CentOS Linux administration skills and have managed a large number of different servers. If you're after a serious and capable programmer then look no further.

    $42.00 /hr
    2,238 hours
    5.00
  9. Vladislav Y.

    Vladislav Y.

    Network Expert (Cisco CCIE),Datacenter and Virtualization Professional

    Russia - Last active: 1 day ago - Tests: 4

    IT Professianl with 15+ year of hands-on experience, an Cisco Expert in both Routing&Switching (CCIE R&S since 2005) and Service Provider (CCIE SP since 2009) , Professional in Network Security (CCSP), Professional in Vmware Vsphere and Horizon view technologies (VCP-DT and VCP-Desktop) I have extensive experience with Cisco ( IOS, NX-OS) , Juniper, HP networking hardware and technologies, and strong on the side of Virtualization ( Vmware) and UNIX systems (Linux, Solaris, FreeBSD). Microsoft OSs are also part of my experience. I am certified in Linux/UNIX:RHCE on RHEL3 and SCNA on Solaris 9 and 10, also Microsoft-Certified: MCSE.

    $45.00 /hr
    7,178 hours
    5.00
  10. Vlad Borovtsov

    Vlad Borovtsov

    iOS / Mac developer

    Russia - Last active: 1 day ago - Tests: 3 - Portfolio: 4

    Over last five years i have made a lot of applications for iOS and Mac OS platforms. Most of them are simple games or educational apps. But there were something special - computer vision, interactive magazines, audio and video processing and automation tools. I'm looking to new opportunities to build something interesting and gain new experience in different areas. I also have wide experience in web development and system administration.

    $35.00 /hr
    2,167 hours
    4.96