CentOS Freelancers

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CentOS Job Cost Overview

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

Upwork CentOS Jobs Completed Quarterly

On average, 148 CentOS projects are completed every quarter on Upwork.

148

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: May 1, 2015
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  1. Karmandeep Singh

    Karmandeep Singh

    LAMP CodeIgniter, WHMCS, cPanel API, FB-OG API, Web-Application Guru

    India - Last active: 2 months ago - Tests: 7 - Portfolio: 9

    PHP, MYSQL, jQuery, Linux and lots, with about 5-6 years of experience. I handle project right from the start, so if you have an idea which can fetch you good money and help pay my dues then you are most welcome. Totally independent contractor, If hired I work for you. Please do check my status of availability before calling for an interview. Quote: "If you have a choice, choose the best. Else do your best" Status: Available

    Groups: Bluehost Developers and Designers, MailChimp Experts Group...

    $22.22 /hr
    2,924 hours
    4.95
  2. Jor Han Lau

    Jor Han Lau

    Ruby on Rails, jQuery & CSS Web Developer

    United States - Last active: 2 months ago - Tests: 9 - Portfolio: 12

    More than 10 years of software development experiences. I have experience in developing and managing numerous projects life cycle. They include various applications from enterprise system, e-commerce, social networking site, fantasy sport manager games, manufacturing, portals and cloud computing. I am skilled in web technology including PHP, Java, Ruby on Rails, Javascript and Engine Yard many more. A person with passion to solve business and world problems using mostly open-source technology.

    Groups: Engine Yard Ruby on Rails Professionals Network

    $38.89 /hr
    872 hours
    5.00
  3. Kristijan Spionjak

    Kristijan Spionjak

    Linux, Unix, VMware, Nagios, Apache, Postfix, MySQL, WHM/cPanel

    Croatia - Last active: 2 months ago - Tests: 4

    Hello, Over the last 12 years, I have worked in the Internet service provider company, software development company and IT Training School. My major expertise is in general Linux/Unix, VMware vShere Hypervisor and vCloud Infrastructure and networking and systems administration and environment architecture. My Core Competencies are: Networking: dhcp, dns: bind/named, vpn: pptpd, openswan, firewalls: iptables, csf, apf, pf Web server: apache, nginx Mail server: Postfix, antispam/antivirus: ClamAV, SpamAssassin, Amavis, Dovecot Database: MySQL, PostgreSQL Monitoring: Nagios, Munin Hosting panel: WHM/cPanel, ISPConfig Windows 2003/2008 Server Windows 2003/2008 Active Directory Windows 2010 SP1 Exchange VMware vShere and vCloud: ESXi, vCenter, vCloud Director, vShield Vendor Certifications: CNI (Certified Novell Instructor - March 2005) LPIC-1 (Junior Level Linux Professional - October 2003) MCT (Microsoft Certified Trainer - October 2003) MCSE (Microsoft Certified Systems Engineer - October 2001) If you take me into considiration, I'm available on Skype, G.talk and E-mail for any informal interview or skill test. Looking forward to hearing from you. Regards, Kristijan Spionjak

    $22.22 /hr
    2,218 hours
    5.00
  4. Alexandru V.

    Alexandru V.

    Senior Linux Administrator

    Romania - Last active: 2 months ago - Tests: 4 - Portfolio: 2

    * Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. * Maintain 100% customer satisfaction through all available means.

    $20.00 /hr
    122 hours
    4.99
  5. Giorgi Javakhidze

    Giorgi Javakhidze

    MCITP | Vmware | Windows - Linux Systems Administrator

    Georgia - Last active: 12/17/2013 - Tests: 6

    In the last 3 years, I have administered many IT networks, managing over 1000+ users. My core competency lies in complete managing of windows - linux based networks, including Active Directory, Exchange, MS-SQL, virtual clouds, based on VMware / Hyper-V and EVA Storage Area Network. I have deep experience in the following software solutions: Basic server services ( DNS, DHCP, WSUS, Vpn, etc. ) Windows 2003/2008 Server Windows 2003/2008 Active Directory Lync Server, Exchange Server, SharePoint Server. Monitoring: SCOM, Nagios Web Server: IIS, Apache Mail Servers : MDaemon, Postfix. Database: MSSQL, MySQL. Proxy / firewall solutions ( Squid, TMG, ISA ) VMware vShere and vCloud: ESXi, vCenter, vCloud Director, vShield

    $15.00 /hr
    183 hours
    5.00
  6. Marc Gray

    PHP/JS/HTML5 Expert Developer and Linux Administrator

    United Kingdom - Last active: 08/03/2013 - Tests: 12 - Portfolio: 1

    I am an expert developer and system administrator with PHP, MySQL, Javascript, CSS3, HTML5 and Linux (I currently use: RHEL, CentOS, openSUSE, Fedora. I have previously used Gentoo and Ubuntu). I have previously developed/configured: - Full eCommerce framework with innovative admin panel (PHP, Javascript) - Automated video transcoding service (PHP, Linux, ffmpeg) - Automated document conversion service (PHP, Linux) - Database driven SFTP service and firewall stored over NFS (PHP, Linux) - Differencing document storage solution (PHP) - Deduplicating backup storage solution (PHP) - Multiple fault tolerant storage servers with 12tb of space (Linux) - Multiple complex scripted firewall setups using iptables (Linux) - Flash website without Flash, with pixel perfect design and advanced effects (Javascript) - MIME Email framework to replace PHPMailer (PHP) - ... and much, much more I also work as a white-hat hacker, where I probe and test servers for vulnerabilities. I have previously been CRB checked and treat all clients with confidentiality. I am happy to sign an NDA.

    $35.00 /hr
    241 hours
    4.92
  7. Oleg B.

    Oleg B.

    Windows, CENTOS & FreeBSD administrator

    Russia - Last active: 3 months ago - Tests: 4

    Windows, CENTOS & FreeBSD administrator with over 10 years of hands-on and multi-tasking experience, adept at handling multiple system operations, including installation, upgrade, configuration, administration and maintenance of these systems. TECHNICAL PROFICIENCY Windows Server Administration (Windows 2003,2008,2012) Hyper-V Administration IIS 7.0 Administration Active Directory Administration TCP/IP Network Troubleshooting Working with MS SQL Databases FreeBSD Administration Postfix, Courier IMAP, qmail Administration Apache, PHP, MYSQL Administration

    $22.00 /hr
    0 hours
    5.00
  8. Sampath Jayashantha

    Sampath Jayashantha Agency Contractor

    System and Neytwork specialist

    Sri Lanka - Last active: 14 days ago - Tests: 3

    Experienced graduate seeking opportunity that will allow the utilization of skills gained in the Networking and Telecommunication field. I hold excellent trouble-shooting skills due to the real time hands on experiences. As a Cisco Certified, I hold in depth knowledge on Cisco Products & networking solutions. I am looking for a role where I can develop my skills further, researching new technologies and reveling in new challenges.

    Associated with: esampathj

    $11.11 /hr
    0 hours
    5.00
  9. Yuriy M.

    Yuriy M. Agency Contractor

    Linux administrator with website migration and development experience

    Ukraine - Last active: 12 days ago - Tests: 5

    Security analyst; Malware removal; Server securing; Server administration; Website migration; Server optimization; Website optimization. God of email. God of migration :)) 100% positive feedbacks, prooved experience and portfolio. I'm specialist of: System Administration, Linux (CentOS, Ubuntu, Debian), Security Setup, Domain Migration, Domain Fixing, Server/Website speed Optimization, MySQL, Website Development and other. My experience installing and configuring servers is about 15 years. I have several working projects developed by me and written by me. They are located on a server that is configured by me. In addition, I have experience of writing various scripts, experience network security, installation and optimization of MySQL, etc. I hope I will be the best choice to start your project from scratch, even if he plans to be heavily loaded. My primary skills: 1) Migration skills: complete domain migration from legacy to new platform, including web content, email, database, DNS. 2) SEO skills: search optimization, including server setup and source-code optimization. 3) Website creator skills: using CMS or just plain editor, experience with heavyload projects. 4) Linux system administration skills: server setup, web-servers administration(apache, lighttpd), database optimization for heavy-loaded projects. Experience with cluster system, and rpm\deb based Linuxes. 5) Security analysis skills: searching of malware, checking vulnerabilities, website security, detecting outside intrusion or leaks etc. 6) Backup and recovery skills: backup and restore webcontent, email, using my own software or generic applications. I'm seeking for following projects: 1) System administration 2) Domain migration 3) Website developpment 4) Search Engine Optimization 5) Security administration 6) Server setup

    Associated with: MVN Ukraine

    $15.00 /hr
    7 hours
    4.95