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

602

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: July 1, 2015
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  1. Justin Bachus

    Justin Bachus

    10+ years experience in Linux System Administration and web hosting

    United States - Last active: 03/28/2011 - Tests: 2

    I have been involved in Linux and FreeBSD system administration for over 10 years when I began managing servers for a social networking website. After starting my own web hosting business and working in multiple positions in both the private and public sector, I consider myself an expert in system administration and designing systems to meet customer needs. With degrees in Business Honors and Management Information Systems, I can quickly articulate business needs and translate these into technical requirements. My technical experience allows me to then research and choose the best and most economical needs to match customer requirements.

    $55.56 /hr
    55 hours
    0.00
  2. Edmond B.

    Edmond B.

    Software & Web Application Developer

    United States - Last active: 25 days ago - Tests: 3 - Portfolio: 1

    A developer with many years of experience building and supporting software and systems for small business and enterprise clients. In addition to contract web and software development, I have a professional background in Systems Administration and security. This allows me to leverage a holistic level of understanding and experience across your entire technology stack. Languages: Python, C++, HTML/CSS, Javascript. Specialties: Flask application development. Linux systems administration, strong Linux/Bash command line skills. Well versed in open-source tools and the OSS ecosystem, security best practices & hardening, authentication, MongoDB and MySQL databases, REST APIs (particularly Twitter), nginx, server scripting/automation, server deployment, usability and design concepts, and full-stack web application deployment.

    $33.33 /hr
    195 hours
    0.00
  3. Jeremiah S.

    Jeremiah S.

    Senior Systems and Network Administrator

    United States - Last active: 1 month ago - Tests: 5

    I have experience in Cisco, Juniper, Zyxel, HP, Brocade, and Ubiquiti Network Devices and Windows Server and Desktop editions. I have 10 years of CentOS, Ubuntu, Debian, Free/OpenBSD Experience as well. Some of the management panels I am familiar with is cPanel/WHM, Webmin/Virtualmin, and SolusVM. I am a virtulization expert with experience in VMWare, Xen, KVM, and OpenVZ.

    $60.00 /hr
    18 hours
    0.00
  4. Oriol Buxarrais

    Oriol Buxarrais

    Consultant & Systems Administrator

    Spain - Last active: 28 days ago - Tests: 2

    I'm a Systems Administrator & Consultant & Architecture in IT Services I'm currently working with different technologies such as : -Vmware vSphere (3.0, 3.5, 4, 5) -Windows Server OS (2000, 2003, 2008 R2, 2012 R2) -Linux Servers (CentOS, Debian, Ubuntu) -SQL Servers (2000, 2005, 2008) -Sharepoint Servers (2007, 2010, 2013) -McAfee Epolicy (3.6, 4, 4.5, 4.6,5) -Cisco Systems I can design you infrastucture and keep it up to date. I'm certified on MCSE, MCITP EA, MCITP DBA, MCSA/MCSE 2012, Sharepoint 2010 Administrator. If you need help, don't hesitate to contact me.

    $39.00 /hr
    22 hours
    0.00
  5. Daniel B.

    Daniel B.

    Full Stack Startup CTO: Coder | DevOps | QA | Cloud

    Canada - Last active: 1 day ago - Tests: 1 - Portfolio: 1

    B"H I'm a software developer turned entrepreneur with an irrational desire to solve life's big problems using technology. I've been fascinated by programming and computers since age 14, and have a rich experience of over 15 years with a diverse set of software technologies. As CEO/CTO of a tech startup, I am the kind of generalist that is a jack of all trades and a master of all. On any given day of my week I need to be an excellent developer, tester, copy writer, marketing strategist, media expert, business and financial wizard, all while keeping the big picture and "vision" of the company in mind. Let me apply myself to your problem. Bring me onboard your team, and I will get the job done with spectacular results. I stand behind the quality of my work, the efficiency at which it is delivered, and the easy to maintain nature of my deliverables. SPECIALTIES Linux system administration (Ubuntu, Apache, MySQL, ElasticSearch, Sphinxsearch, RabbitMQ, ...) Clustered environments (CoreOS, Fleet, etcd) Containerization (Docker) Docker workflow design (containerizing environments for dev, staging & production for apps built in any language: PHP, Node, Ruby, Python, Haskell, ...) Cloud environments (AWS) Cloud migration (SoftLayer -> AWS, ...) Shell scripting (advanced Bash) Software development (PHP, C++, JavaScript, CSS3, HTML5) Configuration management (Puppet) Quality assurance (Selenium, PHPUnit) Continuous integration (Jenkins, Strider) Continuous deployment Monitoring and metrics (New Relic, Logstash, Kibana, Grafana, Graphite, Nagios, Seyren) User interface and user experience design (UI/UX) Product functional design and functional flow mapping Technical strategy Technical team building and leadership WORK ETHIC Development: Make it work, make it correct, then make it fast. Move quickly and break things, because better to get it into the user's hands than keep it in the engineer's head. Design: Less is more – remove decision points until it works like magic. Delight users at all costs with insane attention to detail. Quality management: Instrument all the things, since it's harder to improve what isn't being measured. If it's not being tested, it's already broken. Productivity: If it has to be done more than once, automate it; in a startup, don't automate for as long as you can. Refactoring should be opportunistic and shouldn't need management approval, because the broken windows syndrome in a codebase can bring a project to its knees. Technical strategy: Embrace valuable new things even if they're still half-cooked; the developers will usually work hard to smooth any bumps with surprising speed. Never throw out something that works just because something new came out; technology evangelism is an expensive sport. Management: Mentorship is key to developing the culture and organizational processes that will keep employees happy and increase their value to the company. Communicate the rules clearly, set the goalposts, then get out of the way and let the team shine. Exude passion or stay home. Leadership: Listen to and learn from everyone. When making decisions there is never enough information, and once there is it is usually too late. Grand plans tend to become obsolete before they are implemented, and old habits die hard; changes are most successful when they are small. KEYWORDS I've picked up many other skills over the years, so for easy reference and searchability on oDesk here is the keyword soup (in no particular order): ajax, json, api, html, css, smarty, zend framework, virtualbox, virtual machines, amazon cloud, dns, ftp, nagios, c++, eclipse, xdebug, software profiling, software optimization, software architecture, refactoring, software patterns, agile, test driven development, lean startup, minimal viable product (MVP), REST and RESTful design, software defined datacentre, continuous deployment, push to build, immutable infrastructure, redmine, project management, static code analysis, debugging, quality assurance, QA, testing, software verification, version control, subversion, power excel formulas, windows, macos, mac os x

    $111.11 /hr
    277 hours
    0.00
  6. Joel L.

    Joel L.

    IT Consultant

    United States - Last active: 5 days ago - Tests: 4 - Portfolio: 1

    15 years of experience in Customer Service, Technical Support and Break/Fix. 9 years of Linux System Administration (performed in parallel with the above) 1 year as a Network Security Analyst. My particular specialty is troubleshooting and problem analysis. More specifically, taking large problems, breaking them into component issues, and resolving the resulting list of issues, thus eliminating the original problem.

    $33.33 /hr
    15 hours
    0.00
  7. Syd A.

    Syd A.

    United States - Last active: 1 month ago

    Syd has spent the last 18 years focusing on enterprise solutions. His experience working with enterprise environments include: network engineering; data security; system administration; and enterprise monitoring. His experience comes from diverse industries including: Health Care; Financial; and Telecommunications, for such companies as WebMD, Bank of America, Lucent, Oxygen Development and others. His broad perspective of computing environments gives him the ability to look across multiple disciplines - to see the whole of the computing environment and not just the individual components. * Foundation Architectures Designed and supported architectures, supporting the following applications among others. Oracle, Informix, Siebel, WebSphere, DB2, MS SQL, LDAP, Web Hosting, Email, and DNS among others. Served as a senior systems administrator, supporting Debian, Red Hat, Solaris, and Microsoft Windows Server. He maintained proper system operations through system audits, patch management. Worked with application owners to ensure proper system configuration. Optimized Solaris system performance through Solaris Resource Management. Integrated Unix authentication and authorization providing common sign-on across Unix, Application, and Windows environments. Deployed Windows Server environments supporting Active Directory, Group Policy, Terminal Services, and MS SQL. * Wired and Wireless Network and Remote Access Architectures Designed and implemented large TCPIP networks. He has architected standard solutions for dynamically routed networks, Internet fail-over and load-balancing. Experience supporting global MPLS and Cisco DMVPN networks. Designed remote access solutions based on Cisco, SonicWall, and OpenVPN. Including Infrastructure based LAN to LAN VPN's, and fault tolerant multi-point VPN solutions with dynamic routing. Designed and implemented indoor and outdoor wireless networks based on Ruckus, Cisco, and Ubiquiti equipment. Performed RF site surveys and analysis. Deployed routing protocols BGP, EIGRP, and OSPF in multiple environements. * Enterprise Monitoring and Data Security He has designed and implemented a Proactive Monitoring solution tying together a number of open source software packages into a unified tool. Packages include Nagios/Icinga, Cacti, Cfengine, Munin, and others. His work with this solution has been proven to lower costs by increasing productivity, and reducing unplanned downtime. Deployed Intrusion Detection and prevention systems, both host and network based integrated with network firewalls for dynamic threat remediation. He has implemented global web proxy services utilizing WCCPv2 and Websense . * High Availability Solutions Designed and implemented high availability environments using virtual, clustered, and replicated solutions. Implementations including Solaris, Veritas, Oracle, and Linux cluster solutions to Oracle, Oracle Applications, Siebel, Mysql and PostgreSQL replication, and Linux Virtualization. * Storage Architectures and Disaster Recovery Designed and implemented storage and backup solutions including SAN and direct attached technologies, tape libraries, virtual tape libraries and off-site replication. Implemented using EMC and vendor storage, Fiber Channel, iSCSI, and direct attached, and both software and hardware RAID solutions. Software RAID including Veritas Volume Manager, Solaris Volume Manager, Linux Logical Volume Manager, Solaris ZFS, and Linux mdadm. Storage formatted as Linux ext3/4, ZFS, VxFS, and direct-access(raw). High availability provided though multi-path/multi-chassis storage access and remote data replication with Veritas Volume Replicator and Linux DRBD. Disaster recovery software includes Symantec NetBackup, EMC Networker, and Bacula with storage provided by EMC, StorageTek, and disk storage. * Virtualization Designed and implemented virtual environments using Solaris and Linux Containers, Linux KVM, and VMWare. Virtual servers deployed to support Linux, Solaris, and Windows operating systems running Oracle, MySQL, monitoring, Voice over IP PBX, file server, application server, and web environments. * Technical troubleshooting – root cause analysis He has a diverse skill set that enables a broad perspective of computing environments. This gives him a systemic viewpoint that goes from the application through host configuration to the many paths that data travels through the network and the interaction of the multitude of components that make up modern computing environments. This ability allows him to direct various resources across multiple disciplines to determine root cause and resolution. * Telephony Implemented voice solutions based on Astrerisk, Trixbox, and FreeSWITCH VoIP PBX. Utilizing VoIP hardware from Snom, Cisco, and Grandstream. Implemented integrated FAX to email solutions utilizing Hylafax fax server and Digium telephony hardware.

    $120.00 /hr
    0 hours
    0.00
  8. Edgaras Zulonas

    Edgaras Zulonas

    System analyst

    Lithuania - Last active: 12 days ago - Tests: 4

    *nix: Debian, Slackware, openSUSE, CentOS, OS X, NetBSD, OpenBSD, QNX Neutrino RTOS 6.2.1, OpenWRT, dd-wrt; Windows: all; *nix Software: Linux Networking Tools, VPN, VNC, Apache, Samba, Squid, Snort IDS/IPS; M$ Software: IIS, LDAP, AD, RDP, TeamViewer; VM: Oracle VM Virtualbox, qemu, Hyper-V; DB: Mysql; CMS: Drupal; Spoken Languages: Lithuanian, Russian, English.

    $50.00 /hr
    0 hours
    0.00
  9. Phillip Stephen

    Phillip Stephen

    Expert Systems Engineer/Architect

    United States - Last active: 1 month ago - Tests: 1

    9+ Years experience working in large scale web production environments. Management/Leadership Experince: -Platform Operations Manager at Liquidity -Former Lead Application Engineer at Liquidity -Linux Team Lead at RentPath -Evening/Swing Shift team lead for AT&T Shared Web Hosting Support -Provided training and guidance to new and transferred email administrators and engineers to facilitate rapid transition during merger/departmental reorganization -Created and revised internal training documents, including classified internal website -Wrote and created internal release management process and procedure -Created detailed internal documentation for all newly built environments Recruiting/Organization/Event Planning -Reviewed resumes and conducted interviews with prospective new team members Specialties: Advanced Skills in the following areas: • AWS • Java • Mule ESB • Tomcat • Mac OSX • DNS • Linux • Server maintenance and management • Nagios • HAProxy • JBoss • Jira • F5 Networks Load Balancers • MongoDB • VMware • RHEV • Centos • ElasticSerarch • Nginx • Endeca • VMware Intermediate Skills in the following areas: • Ubuntu • Liferay • ActiveMQ • RabbitMQ • Beanstalk • Chef • Python • PHP • .Net/ASP • Adobe CS Products • Apache • Windows Server • Pandora FMS • Redhat KVM • MySQL

    $65.00 /hr
    0 hours
    0.00
  10. Abraham Hoffman

    Abraham Hoffman

    Cloud Systems and Automation Engineer

    United States - Last active: 1 month ago - Tests: 1

    I have 15 years experience administering, engineering and managing systems and lifecycle design solutions for Linux and Windows. I currently work with one of the largest OpenStack Clouds in the world and cut my teeth with Cloud on Apache CloudStack. Execution and critical thinking is the most important part of being in IT. Over the years, I have honed an ability to hit aggressive timelines, while remaining on budget. Believe me, this is no easy task. Technical solutions are often extremely complicated. If you hire me, you will receive frequent communication, a timeline that meets the constraints of the project, and a diligent and focused work ethic.

    $155.00 /hr
    0 hours
    0.00