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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.

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

592

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: September 1, 2015
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  1. Alan Guan

    Alan Guan

    Technical/Network Analyst

    United States - Tests: 3

    Computer Science B.A. from the University of North Carolina - Chapel Hill. Young IT professional that has worked in the field for 3 years. Former occupations: Service Desk Analyst, Network Analyst I, Application Consultant, Technical Support Intern. Grew up in touch with technology and gadgets. Jack of all trades, incredibly fast adopter/learner. Currently building my personal profile by freelancing to hone in on my interests (right now looks to be design for mobile apps). Typing tests put me on average at 105 WPM. I work well under pressure, juggling multiple tasks on my plate and prioritizing those that need more attention. I can be a perfectionist at times and will take hours to utilize/read any resources I can to solve a problem. I very much enjoy and excel in helping people understand technology/computers. I would love to get into web design, mobile app design, UX in general. Thanks for reading and considering me for work. I assure you, you won't be disappointed.

    $30.00 /hr
    0 hours
    0.00
  2. Richard Munoz

    Richard Munoz

    IT Professional

    United States

    I am highly motivated skilled IT Professional with more than 25 years of progressive accomplishments in the IT field. Possess the ability to work well with others and under pressure, able to meet tight deadlines and have excellent knowledge of computer technologies and software applications. Also have the capability to quickly learn and utilize new learn skills. Self-starter, exhibiting high work ethic, dedication, integrity, and competence. Personable problem-solver, troubleshooter, able to meet challenges and provide solutions in a timely manner.

    $27.78 /hr
    0 hours
    0.00
  3. Vycheslav Novak

    Linux/Unix/Network Admin with bash, python scripting skills

    Ukraine - Tests: 3 - Portfolio: 1

    - Administration and solid knowledge and background of Unix/Linux systems ( CLI ): Ubuntu, CentOS, ArchLinux, Debian, Solaris, Red Hat: - sed/awk - LFS ( Linux from scratch ) - deep understanding of Linux Memory Management concept - hardware maintenance, troubleshooting (iostat, top, vmstat, iotop, strace ), configuration - regexp - iptables - PAM - grub loader - linux tools ( tcpdump, rsync, scp, tar, strace, semanage, chcon ) - Knowledge of Linux SELinux security system - Linux FTP setup for production use ( proftpd ) - NetApp SAN administration - Configuration Management Tools ( Puppet ) - Solaris experience ( Solaris 8/10 ) - Strong knowledge Client-Server architecture ( Apache Web Server with thin configuration ) - Experience in set up and administration of mail-server: exim + dovecot + postfix + RoundCubeMail - Experience in use and configure VPN-networks (OpenVPN) - Performance tuning Apache HTTPD ( prefork/workers for high-load systems ) - Building High-availability/Cluster Environment for Production Systems ( httpd + mod_jk + tomcat(ajp_connector ) + clustering ) - Apache Clustering Configuration ( Dynamic/Static Clustering with Session Sharing; Performance tuning ) - Solid understanding of LVM concept and file systems (ext3, ext4, NFS, NTFS, FAT32 ) - Solid understating RAID concept - Proficiency in the virtualization concept and technologies (XEN, KVM, Solaris zones ) - Multi-Factor Authentication system development ( OpenOTP, TOTP ) - Strong shell scripting ( bash, ksh, python ) - JIRA and Confluence, Redmine experience - Administration Windows Servers: 2003/2008/2012 R2, Windows NT ( XP, 7, 8 ), Active Directory - Deep knowledge of the units: Cryptography Computer networks (LAN, WAN, MPLS, PPPoE, PPTP) Knowledge of VPN technologies (OpenVPN, IPSec) Network protocols (IP, TCP, UDP, PPP, ARP, ICMP, RIP, OSPF, SMTP, POP3, VLAN, SSL, DHCP, NAT) OSI model Domain Name System (DNS) LDAP Clustering Load Balancing Strong understanding of network setup, layers, configuration and facilities (port forwarding, DMZ, virtual server) - Administration and configuration network hardware switches/routers D-Link (VLAN, LACP, ACL, VRRP), FortiNet (Fortigate 80c, 60c), Cisco Catalyst ( 3750-x, 2960s), HP A5210 SI, Checkpoint R75.20/Gaia/R77 - QoS ( MQC, DSCP, CoS, ToS ) - Knowledge of Cisco IOS - Building Nagios Monitoring System ( mrtg, pnp4nagios, SNMP monitoring ) - Experience with NAS, SAN or iSCSI storage systems - Experience in Datacenter migration - Experience in virtualization system VMWare ESX - Experience in Citrix Systems - Dell Hardware Servers ( PowerEdge R710, R520, R320, R720, EqualLogic PS6210XS, SAN N4032F ) - Juniper switches OS experience ( EX4200 ) - Strong performance management, problem identification, analytical and problem-solving skills - Develop Production services monitoring Dashboard on Ruby/JS/coffeescript - Python programming language - Basic experience in SQL language ( MySQL ) - Creating application with using Python, CGI, shell scripting - Optimization and improvement of processes - 24x7 Production Servers/Applications support and maintenance - Perform deployments to QA & PROD environments Successfully completed projects: DataCenter Migration Migrate all production servers and environment to new DC, including building/deployment from scratch in new DC. Completed in short time and with minimal downtime of business application. Building Physical Infrastructure for Production systems Planning, developing, devising infrastructure for Production systems. Including enterprise requirements: redundancy, high availability, clustering, risk mitigations. 3. MultiFactor Authentication for servers Developed, created, implemented system for secure two factor authentication for all users across all Linux servers based on WebADM OpenOTP library.

    $15.00 /hr
    0 hours
    0.00
  4. Stephen S.

    Stephen S.

    Business Analyst and Project Manager

    United States - Tests: 2 - Portfolio: 3

    Linked in Profile ssalaka 15+ years of varied industry experience (including extensive consultation work with large cap and fortune 500 organizations) in both software development and systems engineering as well as overall project management and client development/consulting; significant experience with Linux and Windows (mixed) environments and programming experience (including C#, JAVA, C/C++, shell scripting, and SQL), an MBA in Information Technology, and a solid understanding of complete systems lifecycle development/deployment/and support with a solid focus on applying process optimization strategies (Lean, TQM, 6 Sigma, etc...) My overall career path has been extremely varied, covering a wide range of tasks, duties and responsibilities (in an extensive breadth of industries) The main focus has been working in a (C#/JAVA/MSSQL) development;(Windows/Linux) deployment environment, designing and developing application/systems architecture for large scale portal (clustered and virtualized) applications, managing both development and server teams, designing and implementing systems security components, and deploying and managing network/infrastructure resources. Additional responsibilities have included client development/consulting, the integration of developed solutions into client project deployments, offshore team coordination, following development best practices to produce tested, integrated and fully-documented software solutions for Linux and Windows platforms (including Windows Mobile), and large scale systems roll out and deployments using both clustered (both hardware and software based) and virtualized (VMware) technologies. Business Level Japanese, JLPT Level 2 Conversational Spanish/German Specialties: Project Management, Software Development, Software Architecture, Systems Engineering/Architecture, Network Engineering, Programming, Troubleshooting/Maintenance, System Security, Software Architect, JPLT 2kyuu, DBA, MCTS, MCPD, MCSE 2003, SCJD 1.6, Security+, Lean Agent Certification, PMP, Six Sigma Black Belt Process Optimization

    $125.00 /hr
    0 hours
    0.00
  5. Panayotis Tsiamis

    Panayotis Tsiamis

    Senior Systems and Software Engineer

    Greece - Tests: 7 - Portfolio: 14

    Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.

    $30.00 /hr
    445 hours
    0.00
  6. Ranis S.

    Ranis S.

    System Developer for Windows/Linux.C/C++/Assembler

    Russia - Tests: 3 - Portfolio: 7

    For the last 6 years I've been working primary with C++ and technologies/libraries related to it; such as: boost, Qt, log4qt, STL). I have a good knowledge of the old-school C++98/03 as well as modern C++11. Have an experience with VSS, CVS, SVN and Git. But hugely prefer Git. Have about 3 years experience with CMake. Also I have an experience in software architecture and design patterns(GoF, primary). I prefer projects with unit tests and clean code requirements. For the purpose of unit testing I've used Qt tests, boost test and Google test and Google mock. Currently I work with gtest&gmock combination, mostly. So, my primary goal, at the moment, is to apply my developers skills for some challenging software-developing job which being written using the modern C++ language.

    $32.50 /hr
    0 hours
    0.00
  7. Rahul Trivedi

    Rahul Trivedi

    7+ Year Linux/Solaris JBoss/Tomcat/Webhosting/Middlewere/Build&Release

    India - Tests: 6

    I've 7+ Year of core experience in Administration and Implementations of various technologies including support on middleware (JBoss/Tomcat/Apache/Webspher/HTTP/Linux/Solaris) Completed build and release solution using automation toold (Aanthill Pro, Hudson, Jenkins, SVN, Clearcase) Experience in Linux/Solaris/Unix Server services deployments and supports Experience in Middleware Websphere Application Server Administartion and deployment including support 6 Year of experience in SHELL Scripting/ANT Scripting/Python Scripting. 4 Year Experience in Build and release management for JAVA EEE Business Applications deployments. 3 Year experience in VOIP [Asterix/PBx/SIP Server] installation and administration.

    $16.50 /hr
    18 hours
    0.00
  8. Dmitrii M.

    Dmitrii M.

    Strong work ethic and productive self-starter.

    Russia - Portfolio: 1

    Working professionally in Information Technology the whole career about 20 years, I have done a tasks based on technical knowledge and management, the ability to master new innovations as they are developed, Architecture, End User Support, Project Management, Data Center Solutions , Storage Solutions. Expert in Linux and Windows administration, LAMP, Cisco technology, Xen virtualization, FreeBSD storages and script programming.

    $22.00 /hr
    37 hours
    0.00
  9. Felmar S.

    Felmar S.

    Php/Mysql developer, Linux Server administrator

    Philippines - Tests: 3

    I have an extensive experience in Managing Dedicated Servers and AWS Services, Administering Linux and Windows Servers, Script Writing and Debugging , working with VPS, VDN, Dedicated and Cloud Servers. I'm also engage in server migration, rsync technology, ddos mitigation, mysql and apache optimization. I have experience in web development using php and mysql/mssql.

    $11.11 /hr
    837 hours
    0.00
  10. Sun Dro

    Sun Dro

    Software engineering. Design, development and maintenance of software.

    Georgia - Tests: 4 - Portfolio: 5

    I have 5 years experience in Software engineering: Design, Development and Maintenance of software, 2 years experience in IP-TV software development and I also have a big experience in IT Security, Penetration Testing, Technical Support and Operating Systems (GNU/Linux, Windows) Administration/Architecture. Personal Blog: http://off-sec.com/ Services: - System Programming - Middleware Development - Desktop Application Development - Server-Side Application Development - Android Application Development - IT Security Research - Penetration Testing - Malware Analysis - IT Security Advisory - IT Infrastructure Consulting - Security Awareness Training - Operating Systems Administration

    $10.67 /hr
    0 hours
    0.00