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, 601 Linux System Administration projects are completed every quarter on Upwork.

601

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 4.79.

4.79
Last updated: June 1, 2015
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  1. Miguel Diaz

    Miguel Diaz

    Chrome/Firefox Extensions, Web Scraping, jQuery, PHP, MySQL,API Expert

    Peru - Last active: 1 day ago - Tests: 2 - Portfolio: 33

    Over 8 years of experience in web development, I've acquired some good knowledge in a variety of technologies from Linux to jQuery. Recently I've been developing Chrome/Firefox Extensions and Web Scraping Systems, I also have hands-on experience on Third-party API integration. My programming style is clean and straight-forward, with equal emphasis on quality, functionality and maintainability. Here's a summary of the technologies I've been involved with: /Chrome and Firefox extensions |-- Content injection |-- Toolbars |-- Sidebars |-- Tooltips |-- DOM manipulation |-- API requests |-- 'New tab' page overwrite |-- LocalStorage /Web scraping |-- Multi-threaded scraper |-- Proxy switching |-- Javascript-based sites |-- Password/SSL protected sites |-- Image scraping |-- Ad scraping |-- Feed scraping |-- Email extraction |-- Regexp |-- Deliverables in csv, tsv, xml, json, excel, mysql, txt /API Integration |-- Google Maps |-- Google Streetview |-- Google Custom Search |-- Facebook API |-- LinkedIn API |-- PayPal API |-- Maxmind.com (IP Geolocation tools) |-- Clickatell.com (Bulk SMS Gateway) |-- Oneall.com (Social Login) |-- Octeth.com (Email Marketing Software) |-- Adstation.com (Advertising Software) |-- Ekosolutions.us (Mobile marketing and micropayments) |-- Infofax.es (Internet Faxing) |-- Prosperent.com (Affiliate tools) |-- Superfish.com (Visual Search) |-- Wurfl.sourceforge.net (Mobile Useragent Database) |-- Talentbin.com (Talent Search Engine) |-- AWeber.com (Opt-In Email Marketing) |-- Thumbalizr.com (Online thumbnail generator) |-- Fnac.es (Product Catalog) |-- Serhstourism.com (Hotel Search Engine) /PHP |-- CodeIgniter Framework |-- Symfony Framework |-- MeekroDB |-- Xdebug |-- Web services |-- PHPUnit |-- Exception Handling |-- cURL |-- PHPMailer |-- phpDocumentor |-- Memcache |-- ZB Block /Javascript |-- jQuery |-- jQuery UI |-- jQuery Grid |-- jQuery Dump |-- jQuery slimScroll |-- MooTools |-- YUI |-- jSEND |-- qTip2 |-- Conditional compilation |-- DOM manipulation |-- Namespaces |-- Ajax /Linux |-- Apache |-- htaccess |-- Shell scripting |-- Rsyc/SSH |-- Cron jobs |-- Procmail |-- Memcached |-- GNU gettext |-- FFmpeg |-- yum/apt-get |-- Virtual hosts |-- Plesk/cPanel /MySQL |-- Transactions |-- Large databases (~5M rows) |-- Data replication |-- Fine tuning |-- Backups /SEO and Internet Marketing |-- Adsense for Search |-- AdSense for Content |-- Advertising Metrics |-- XML sitemap/videositemap generator |-- Google/Bing Webmaster Tools |-- Long Tail Keywords optimization |-- SEO-friendly URLs |-- HTML Optimization /Project Management Tools |-- Git/GitHub |-- SVN |-- Trac |-- Pivotal Tracker |-- Basecamp |-- Atlassian |-- Balsamiq Mockups /Other |-- C/C++ |-- Java |-- ASP |-- Prolog |-- Visual Basic

    $30.00 /hr
    2,480 hours
    4.99
  2. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 4 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,706 hours
    5.00
  3. Umair A.

    Umair A.

    Database Systems Expert

    Pakistan - Last active: 12 days ago - Tests: 3 - Portfolio: 11

    Over the last 10 years,I have been engaged on various development and administration tasks on SQL Server, Oracle, Mysql and Networks.My core competency lies in Performance optimization, designing efficient database structures,including tables,indexes, views,functions,stored procedures/routines,CLR functions using T-SQL and performance tuning/optimization of all versions of MySql and SQL Server 2000/2005/2008/2008R2/2012 and so on. Expert in DBA tasks, MySQL installation optimization and replication (master - master, master slave etc) and have complete grip and extensive experience of backups,replication over IIS using HTTPS protocols,partitioning, mirroring, security management,SSRS reports development,SSIS and SSAS management also skilled in deploying and managing Virtual and Cloud Computing infrastructure. I look forward to provide consultancy services and work on sophisticated and large scale database projects involving performance and tuning, support, design & development, administration and Business Intelligence for 24/7 mission critical database servers. I must say that i am a performance and optimization geek and i have proved that in my carrier. Above all, I strive to provide excellent service to my clients and ensure their happiness, good customer service is key for me, and no project is completed until you are satisfied. I work during EST and speak and write fluent English and consider communication to be a necessity.

    Groups: Microsoft Certified Professionals, Oracle Certified Associates

    $50.00 /hr
    4,088 hours
    4.94
  4. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Last active: 21 hours ago - Tests: 7 - Portfolio: 2

    Daily engineering and administration of OpenBSD, FreeBSD, Linux and Windows based operating environments. LAN/WAN: Experience identifying a large number of network and host based security problems. Stabilized the bandwidth billing system for accuracy and provided assistance to the web development team. UNX(tm)/Linux/BSD: Designed and built a custom Enterprises Data Ware House utilizing RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Back ported the RedHat clustering tools and GFS modules for RedHat Enterprise Linux 4. Customized the operating environment for running the IBM Information Server 8 family of applications, consisting of IBM DB2 V 9.3, IBM WebSphere 6.0, IBM DataStage and IBM QualityStage. Was the single onsite operations point for the HP-UX, Solaris, FreeBSD, MacOS X, and Linux machines. Wrote custom tools for monitoring and metrics. Fluent in the change management process as it relates to Sarbanes Oxley, internal, and external audits. Extensive documentation of custom applications, primarily our custom data warehouse solution. Designed and implemented the company's external web presence using Solaris 10. Utilized zones, the ZFS file system, and hardware RAID on the T2000 platform. Wrote my own tools in Perl, C, and the Bourne shell. Debugged many complex operational problems. Specialties Started running Linux around 1993, kernel was 0.99 Moved onto SunOS and Open/FreeBSD. Since have worked with HP-UX and SCO extensively. Currently work with RHEL, AMI Linux, CentOS, OpenBSD, EC2, Parallels, and Rackspace.

    $30.00 /hr
    5,688 hours
    4.97
  5. Jehanzaib Younis

    Jehanzaib Younis

    VoIP Developer

    New Zealand - Last active: 1 month ago - Tests: 3 - Portfolio: 1

    Heya a VOIP Developer here with more than 6 years of industry experience. I have developed inbound/outbound/predictive dialing solutions, PBX solutions for many clients. I develop custom VOIP applications they fit to your business enviroment. I develop custom API's plus the API integration of existing solutions. If you need database administration or backup solution just give me a buzz. cheers!

    $23.33 /hr
    178 hours
    5.00
  6. Andrii K.

    Andrii K.

    System Administrator

    Ukraine - Last active: 1 day ago - Tests: 5 - Portfolio: 5

    Last 6 years I have engaged in system administration using Apache2, Nginx, PHP, Perl, Python and MySQL including sites for startup companies and small businesses. extensive experience in the deployment of sites and projects of varying complexity, and I am seeking opportunities help you to build your business. I have great experience in: - Linux maintaince/troubleshooting: Debian, CentOS, Gentoo, Ubuntu, RHEL etc - Apache2 + Nginx, Nginx + PHP-fpm, Nginx + PHP-fastcgi, MySQL, Varnish, Memcached. - Linux serverside: iptables, rsync, Bind, OpenVPN, - Mail: Exim, Dovecot, Postfix. - Cloud Hosting: Digitalocean, RackSpace, Amazon (EC2, AWS, S3), Linode, GoDaddy - Hosting providers : Softlayer, Hetzner. - Backup/Migration - Hosting panels : Plesk, whm\cPanel, ISP , DirectAdmin, Virtualmin - Virtualization: Xen, KVM, OpenVZ, Proxmox - Monitoring: Zabbix, Munin, Cacti, Nagios - CMS : Wordpress, Drupal, Magento, Joomla, CS-Cart

    $30.00 /hr
    1,766 hours
    4.99
  7. Sergii Lysiuk

    Sergii Lysiuk

    Network Security VoIP Specialist - Cisco, Juniper, Linux, Asterisk

    Ukraine - Last active: 12 days ago - Tests: 17

    I am looking for projects that I can complete on a part-time basis. They can be either short term projects or long term projects. I can also provide ongoing consulting and administration if needed. I am experienced in Cisco Routing & Switching, MPLS, Security, Network infrastructure applications ( SNMP, Radius, DNS, DHCP , etc) Voip - including Asterisk, Call-Manager , Unity, FreePBX, Elastix. Server administration experience ( Linux, FreeBSD)

    $38.89 /hr
    381 hours
    5.00
  8. Sergey Podushkin

    Sergey Podushkin

    RHEL/CentOS/Fedora/Deb System administrator/Web developer and scraper

    Russia - Last active: 21 hours ago - Tests: 16 - Portfolio: 3

    I am system operator/programmer/administrator since 1985. Focusing on Linux adminstering since 1995 with various distros, like Slackware, RedHat Linux, ASPLinux, Fedora. Have skills with shell-scripting, PHP and Python. I have developed a number of web-based systems for internet and intranet using DHTML, Python, PHP and PostgreSQL, have a good experience in SQL, PL/PgSQL, JavaScript/Ajax. Have an equivalent of Bachelors Degree in mathematics (applied system analysis and statistics). Have experience in deployment of RedHat Cluster Suite solutions, xen and kvm-based virtualization (including live migration), deployment automation with cobbler/koan, custom distribution and LiveCD building.

    $27.78 /hr
    3,948 hours
    5.00
  9. Vladislav M.

    Vladislav M.

    Network / Cisco / Linux Administrator / Cloud Expert / AWS / DevOps

    Russia - Last active: 21 hours ago - Tests: 10

    Self-motivated professional with strong work ethic and productive self-starter – proven with success being a freelancer at oDesk. Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines 17+ years as an Systems Administrator 11+ years as Network Engineer 7+ years as Cloud Expert and SaaS Architect 3+ years @ DevOps Freelancer for last 8 years (over 30,000hrs worked @oDesk)

    $60.00 /hr
    32,574 hours
    4.96
  10. Aleksey K.

    Aleksey K.

    C#/C++/SQL developer, software engineer

    Ukraine - Last active: 21 hours ago - Tests: 6 - Portfolio: 2

    Having overall 14 years of working experience in IT area. Developed desktop applications as well as web-sites. Expertise: C/C++, C#, Red hat Linux, SUSE Linux, Windows XP/2003, PostgreSQL, MySQL, MS SQL 2005/2008, Qt, .NET, OOP, version control tools, Distributed and Client-Server Application, automatic control systems, technical diagnostics systems, data acquisition, outsourcing, neural networks, artificial intellect, algorithms design have diverse experience in IT, project management, effective problems solving, prefer to propose and implement universal solutions instead of quick hot fixes (hacks) as universal approaches rises programs quality, improves its properties, saves time for maintenance in long term perspective.

    $36.00 /hr
    4,787 hours
    5.00