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Typical total cost of Upwork CentOS projects based on completed and fixed-price jobs.

Upwork CentOS Jobs Completed Quarterly

On average, 136 CentOS projects are completed every quarter on Upwork.

136

Time to Complete Upwork CentOS Jobs

Time needed to complete a CentOS project on Upwork.

Average CentOS Freelancer Feedback Score

CentOS Upwork freelancers typically receive a client rating of 4.85.

4.85
Last updated: August 1, 2015
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  1. Claudio Gentile

    Claudio Gentile

    Cloud Technologist and Strategic Business Advisor

    United States - Last active: 13 days ago - Tests: 5

    AWS Certified Solutions Architect - Associate AWS Certified Business Professional. Extensive experience in cloud computing from a pre-sales, implementation, and post-sales support. Customer facing and capable. Please see Linkedin profile for more details: http://www.linkedin.com/in/cgentile/

    $50.00 /hr
    0 hours
    0.00
  2. Haris L.

    Haris L.

    Senior developer, software architect

    Bosnia and Herzegovina - Last active: 17 days ago - Tests: 2

    I am senior sysadmin/developer with extremely "deep" and "wide" knowledge and understanding of IT platforms and solutions. I have 20+ years of experience working in IT industry including, system and networks administration, software architecture and development as well as IT systems design and implementation, both Linux and Windows based platforms. For last 10+ years my focus was on opensource based platforms, frameworks and software, so following are some of my experiences: - WEB and desktop based software/services architecture and development using many different languages: c, php, perl, python, javascript, html/css, java, vb/vba, vfp... and frameworks; zend, django, express... - sysadmin of different linux flavors (centos, debian, redhat, suse...) - implementation and support of different opensource software platforms: Asterisk/FreePBX VoIP, vTiger CRM, Kannel/PlaySMS SMS marketing services... - design, implementation, tuning and maintenance of PostgreSQL and MySQL RDMBS - design and development of WEB and desktop opensurce GIS/GPS solutions (GeoServer, PostGIS, OpenLayers, OSM...) - lecturing and training both IT professionals and regular users - IT projects management In addition to above, I am also experienced in working cooperatively and effectively with people from a wide range of nationalities asI was engaged in several national wide projects financed and supported by UN/UNDP/UNESCO and WB/IFC.

    $33.33 /hr
    1,214 hours
    4.64
  3. Nathaniel Jennings

    Nathaniel Jennings

    Linux Administrator/Engineer

    United States - Last active: 15 days ago - Tests: 4 - Portfolio: 1

    Highly skilled general Linux Administration on all flavors, including Solaris and BSD. Thorough C/C++ System Programming understanding and experience, utilizing system calls directly to the Kernel.Can install and maintain existing installs including: RAID, SELinux, remotely manage (SSH), and utilize OpenSource OS's, including BASH Scripts, CRON jobs, custom written Kernel Modules, Python scripting for streamlining tasks, Apache administration, intranet design and implementation including NFS, software RAID, SFTP, fuse SSH drive mounting, KVM and UML optimization and installation including virtual networking (tuntap, iptables, TCPfowarding) iptables, OpenVPN, IPP2P, l7-filtering, server automation, Version Control, automated server creation. I am always willing to learn a new method or tool to complete any task desired of me. I have learned and fine tuned the most widely, in my opinion, needed tasks, but can not wait to have more experience using other technologies. Summary  Passionate autodidactic learner  Quick minded, and open to new methodologies  Attentive to detail  Methodological , precise worker  Highly motivated  Enthusiastic manual reader!  Truly enjoy troubleshooting and problem solving  Linux enthusiast  Open Source enthusiast  MAC OSX proficient  Microsoft functional (can figure out any problem with research) Education Bachelors of Electrical Engineering Tech DeVry Orlando, FL Audio Engineering ARTI Orlando, FL  Big Board installations, computer set up, audio engineering, audio work station design, synthesis, audio technologies, performance, live shows, studio design, acoustic design, digital sound design, Dolby Digital 7.1 design, digital audio theory, digital audio encoding, digital audio Plug-In design, audio software design  Linux Sound Design  Recording engineer  Mixing engineer  Mastering Engineer  Audio hardware Engineer  Logic Pro  Reason  Max/MSP  OSC  PureData Supervisor, Electrical Assistant  Worked for Contractor  Gathered and assessed inventory for job  Managed laborers  Quality Control  Industrial Electrical installations  Residential installations Jennings & Jennings, LLC.  Built Studio  Consumer Audio recording  Mix engineer  Plug-in Development  Composition  Professional music production

    $30.00 /hr
    1,668 hours
    4.03
  4. Marius Cornea

    Marius Cornea

    Cloud Operations Engineer

    Romania - Last active: 1 month ago - Tests: 2 - Portfolio: 1

    Operations engineer focused on cloud computing. I have experience with large cloud deployments infrastructure built on both enterprise and open source solutions. I have also worked with large VoIP networks, datacenter networks and large distributed web apps such as ecommerce sites or online games. I can help you with designing, implementing and managing your servers and network infrastructure from the physical layer to the application layer.

    $22.22 /hr
    44 hours
    5.00
  5. Taeseer Ch

    Taeseer Ch

    cPanel, Parallel, SolusVM, OpenVZ, Linux/Windows, Sharepoint, Exchange

    Pakistan - Last active: 9 days ago - Tests: 1 - Portfolio: 11

    6 Years to experience in Linux/Windows Server Administration. My hands own experience includes: cPanel Parallel Plesk Panel OpenVZ Website Panel SolusVM XEN Spam Experts Spam Control Expert CudaMail Apache LAMP MySQL MS SQL Server Softaculous Cloud Flare Simlink Prevention Application Firewall DNS Management Active Directory Migration MS SQL Database Migration Linux/Windows IT Support Virtualization(Xen, OpenVZ, SolusVM, Hyper-V) SharePoint Administrator MS Exchange Qmail Mail Enable MySQL Clustering SSL As a professional I believe in quality of work rather then quantity, and try my best to satisfy client/customer.

    $12.00 /hr
    0 hours
    5.00
  6. Konstantin Palkin

    Konstantin Palkin

    Systems Administrator / Developer

    United States - Last active: 2 months ago - Tests: 7 - Portfolio: 2

    I have a BS degree in IT Computer Networks and I am a System Administrator, Technical Support Specialist with more than 14 years of experience, planning and implementing computer systems and networks. I have in-depth knowledge of Linux Server Administration and IT Technical Management. I have strong experience with discussion, elaboration and implementation customer requirements as well as company's needs. Demonstrate by my adeptness in Web server (LAMP) deploying, configuration, optimization, and security protection as well as Bash/Python/PHP scripting development. In addition I have extensive knowledge of Optimization and Speeding up content delivery and implemented several fully worked systems with modern cache solutions. I have strong experience with maintaining web-sites, optimize MySQL databases, customize components and layouts and implement security measures.

    $40.00 /hr
    15 hours
    5.00
  7. Werner Gillmer

    Werner Gillmer

    Senior Linux / UNIX system administrator

    South Africa - Last active: 11/14/2013 - Tests: 2

    I have over 12 years Linux and UNIX (BSD, Solaris, HP-UX) experience working for various corporate clients. My core skills are but not limited to : * Setting up and adminstrating HA (high availibility / load balanced)/ Cloud Linux/UNIX envirouments. * Setting up commercial cloud envirouments (Amazon, Heroku, Azure, etc.) * Configuration of Web services (Apache, nginx, lighthttp, tomcat, glassfish, jboss, etc.) * Setting up DHCP, DNS, ftp, ssh, proxy servers etc. * Security (iptables firewall, snort IDS, Nessus and OpenVAS scanners) * Setting up honeypots using honeyd * System auditing (security penetration testing) * System scripting and automation in Bash, Ruby, Perl, Python, Awk, Sed. * System automation with puppet and chef * Monitoring solutions with Zabbix, Nagios * Setting up CMS systems, Drupal, Wordpress, and all the other well known cms's. * MySQL and PostgreSQL * Setup and configure various network topology's and services using Linux/UNIX servers. * Technical support.

    $27.78 /hr
    7 hours
    5.00
  8. Oubram Mohamed

    Oubram Mohamed Agency Contractor

    Asterisk/Elastix/Freepbx/VoIP/Chan Dongle/Raspberry/Network specialist

    Morocco - Last active: 5 months ago - Tests: 3 - Portfolio: 2

    i am a VoIP specialist dealing with Asterisk and voip billing Asterisk based servers: Freepbx Elastix A2billing and Kamailio. i have collected much experience in installing and configuring VoIP servers and giving support for costumers during my last job position at Voipmaroc and Nogafone. during my last jobs i was charged to deploy a voip call center based on Elastix for DYARelmansour , a construction company leader in Morocco , and a call center ViciDial for EIGENVALUE based in Morocco and for many end user of IPBX appliances and customized IPbx installations based on asterisk. I have setup many Asterisk servers for many customers in Freelancing and Deployed many Gsmgateways and Asterisk based Gsmgateways. I have also installed and deployed Raspberry and Huawei Dongles as Cheap Gsmgateways . besides , i have Also setup some complex VoIP topologies for call Routing and Terminations via VPN . my diplomat at network engineering and Centos Linux experience helped me to devolope my skills in VoIP. i am ready to serve.

    Associated with: BRAMZ, BlueGoose Tech

    $21.11 /hr
    232 hours
    5.00