Linux System Administrators & Developers

Get Your Linux System Administration Project Started Today!

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. Edmond B.

    Edmond B.

    Software & Web Application Developer

    United States - Last active: 5 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
    166 hours
    0.00
  2. Jan Garaj

    Jan Garaj

    DevOps Monitoring zExpert (Zabbix/Zenoss)

    United Kingdom - Last active: 1 month ago - Tests: 4

    Self-assessment of my strengths (the best is ★★★★★): ★★★★★ Server administration/support of Linux (RedHat, Debian, CentOS) - 2nd line DevOps support ★★★★★ Server monitoring with Zabbix (other tools: Zenoss, OpenView, OVO, New Relic, Nagios) ★★★★★ Performance tunning of LAMP stack: Apache (Nginx), PHP, MySQL ★★★★☆ Virtualization with Citrix XenServer (VMware) ★★★★☆ Web developing with LAMP stack: Linux, PHP (CakePHP, Nette, Zend), MySQL (PostgreSQL) My DevOps technologies in playfield: Puppet, Zenoss, MongoDB, Python, QlikView, Sencha, cloud Amazon Web Services - AWS, HP Performance Anywhere, New Relic, Apache Tomcat, ... Familiarized with technologies: scripting (bash, python, PHP, ...) , TCP/IP, svn, XML, Javascript (jQuery), Java, C, NetBeans, UML, phantomJS, NetApp, EMC, Jira, ... Knowledge of Content Management System (CMS): Wordpress, Joomla, Drupal, Umbraco. Highlight: • DevOps sector experience: ★ with branded product healthcare web sites (GlaxoSmithKline) ★ with 2,5 millions real users per month on Linux/LAMP stack (Zoznam) ★ with mission critical Linux/Unix servers (Volkswagen) ★ with virtualization and monitoring project built from scratch (WIMC) ★ with deploying/inventoring/patching/configuring of server infrastructure by automation tools (Hewlett-Packard) • Development sector experience: ★ with GPS tracking backend/frontend system (WIMC) ★ with web multilevel marketing system for financial agents (Positive)

    $33.33 /hr
    0 hours
    0.00
  3. Ramunas Cereskevicius

    Ramunas Cereskevicius

    DevOps Engineer / Linux system administrator

    Lithuania - Last active: 1 month ago - Tests: 5

    I have a passion for Linux, automation and infrastructure in general. For the last five years I am managing 60+ servers ranging from small simple webservers to full fledged openstack cloud platform installations. Having experience not only in systems administration, but software development as well puts me in a perfect position to do DevOps for your company. Need something automated? Need to streamline your workflow? Shoot me a message.

    $33.33 /hr
    0 hours
    0.00
  4. Valdas Andrulis

    Valdas Andrulis

    Senior Linux/Unix Systems Administrator

    Lithuania - Last active: 1 month ago

    I am skilled IT specialist mostly working with Linux servers, Web technologies. I like effective technologies and solutions - for many it may be too radical step to go. My main asset is my analytical skills together with vast amount of general knowledge. This makes me perfect for such projects like: Unfindable bug finding How to turn system from slow to fast - perfomance tuning Find suitable solution, tools, software, hardware within given constraints Design a system with certain characteristics etc. -- IT skills: Linux servers (full cycle - buying, hardware installation, software installation, etc.) PowerPC servers(full cycle - buying, hardware installation, software installation, etc.) Email(Courier, postfix) DNS Web servers (apache, nginx, passenger, FastCGI) MySQL IBM AIX (4.x, 5.x, HMC) IBM clustering (HACMP) IBM ESS Storage system HP EVA Storage system SAN switches sh, bash, Ruby, PHP, SSH IBM Tivoli products (TSM, TEC, TME, NetView) Network management Firewalls SWIFTNet network SWIFT Software & Hardware HTML, XHTML, CSS, Web programming, usability Ruby on Rails Internet Marketing SEO

    $60.00 /hr
    0 hours
    0.00
  5. Matt Herrmann

    Matt Herrmann

    Linux Systems Administrator/Devops Engineer

    Australia - Last active: 16 days ago - Tests: 7

    An accomplished IT professional with a broad range of experience, exceptional technical ability and a passion for internet technology. I've been working in the web hosting industry as a systems administrator for almost 10 years. In that time I've been exposed to a wide range of technologies/platforms and am proficient with a large number of them. I'm also a fast learner so I quickly and easily pick up anything I'm unfamiliar with.

    $40.00 /hr
    0 hours
    0.00
  6. Chris Haubner

    Chris Haubner

    Systems/Software Engineer

    United States - Last active: 2 months ago - Tests: 1 - Portfolio: 3

    I am a seasoned IT professional with broad experience in multiple programming languages, operating systems, and a variety of IT functions. I have done everything from technical support, systems architecture, managing global data centers, and creating custom software solutions. I am currently looking to freelance and help solve problems using the skills and knowledge I have obtained. I enjoy IT challenges that allow me to grow and learn new things related to my field. I am a hard worker, who enjoys seeing things to completion, and am extremely thorough and detail oriented in everything I do. I may not be the fastest, nor the cheapest, but I will get the job done and get it done without cutting corners. All of my previous clients from other side ventures have been extremely pleased with my work, and have recommended me to others as well.

    $100.00 /hr
    0 hours
    0.00
  7. Syd A.

    Syd A.

    United States - Last active: 21 days 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. Jacques Beaumont

    Jacques Beaumont

    Computer modeling, visualization, high performance computing

    United States - Last active: 1 month ago - Tests: 2

    Research experience in the development of modeling and simulation systems. This includes: - solution of partial differential equations with the finite element method - computer implementation of finite element systems - algorithms for the solution of nonlinear partial differential equations - high performance computing using: the message passing interface library (MPI), thread programming (OpenMP), and graphic processing units (cuda) Experienced in the programming of computer graphic applications on UNIX/LINUX platforms. This includes knowledge of the following programming libraries: OpenGL, xMotif, X11, and the cuda programming language Experienced with the administration of UNIX/LINUX computer networks Experienced with scientific writing, peer reviewed papers (20), invited lectures (12), grants (6 funded), proposal review for multiple agencies including the National science Foundation, and the National Institute of Health. Industry experience as consultant in software development. Related skills include the write up of specifications for programmers, planning of computational resources, and set up of development environment Realization: (i) developed a large scale system to simulate impulse propagation in cardiac tissue, (ii) used it to elucidate the molecular mechanisms of arrhythmias and predict the effect of antiarrhythmic drugs, (iii) simulated a time of flight mass spectrometer and built a prototype, (iv) built a system to reconstruct geometric models (e.g.) from multiple imaging modalities, (iv) developed new algorithms to determine the kinetics of membrane proteins from signals collected in isolated cells. Perspective: I just started a company (http://www.clxbs.com) specializing in modeling and simulation, including scientific data visualization and high performance computing. Contracts in this area will give me an opportunity demonstrate my skills. I am committed to excellent and provide a warranty on all services.

    $56.00 /hr
    0 hours
    0.00
  9. Ivan Ivanov

    Ivan Ivanov

    Linux System and Network Administrator

    Bulgaria - Last active: 10 days ago - Tests: 2

    I have 14 years of experience in Linux Administration (Debian and Centos Operating systems) I have strong experience in  installing, configuring and troubleshooting Linux operating system. Here are few of my skills summary. • In-depth knowledge of Debian, Centos operating system functionality. • Experience in Server architectures like NFS, NTP, SSH, SQUID, SAMBA, DHCP • Experience in User Management, Routing, Linux Network, LVM, Partitions, Raid, and Quota. • Strong Experience of IPTABLES, Perl,Apache, Nginx, postfix, Sphinx, Elasticsearch, Network Administration etc. • Good Knowledge of Linux commands, Administration and Shell Scripting, Mysql • Experience in handling a production environment in data-centre. • Strong Troubleshooting, Problem solving skills.

    $33.33 /hr
    3 hours
    0.00
  10. Soslan Aldatov

    Soslan Aldatov

    Expert server-side developer (Web, VoIP, Asterisk)

    Russia - Last active: 2 days ago - Tests: 1 - Portfolio: 10

    Highly skilled server-side developer with over 7 years of experience. Extremely reliable and responsive as it's been written a lot of times in my clients' feedbacks on Elance (https://www.elance.com/s/supporteam/). I develop high quality web applications and VoIP platforms. My main speciality is VoIP. Asterisk, FreeSWITCH, openSIPS, Kamailio, VoIP billings and various hardware - that's what I deal with most of time. My background is PHP/MySQL programming. I've been working as a web developer for a lot of years, and you can find plenty of successfully performed PHP projects in my job history on Elance (https://www.elance.com/s/supporteam/). I am also very familiar with GNU/Linux as a system administrator. I'd be glad to help you, so feel free to contact me any time.

    $40.00 /hr
    5 hours
    0.00