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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, 130 CentOS projects are completed every quarter on Upwork.

130

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. Donovan F.

    Donovan F.

    Cloud Engineer and Linux Expert

    South Africa

    I am an accomplished Systems Administrator with over 13 years professional experience building infrastructure and platforms for small web hosts, the enterprise data center and the cloud. My primary specialties are Linux systems, open source software, and cloud platforms. I began my career integrating Linux systems and varies opensource technologies for Internet Service Providers and Telecommunications providers. I realized that integrating programming/scripting into my skill set would automate and provide easy of implementation to many of my projects. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - RHEL, CentOS, Ubuntu, and FreeBSD Datastores - MySQL, PostgreSQL, Memcached, Redis, MongoDB Monitoring - Nagios, Munin, Cacti, Shinken Management - Chef, Puppet Platforms - AWS, Rackspace, OpenStack Frameworks - Rails Lanaguages - Ruby, Python, Perl, PHP SCM - Git, SVN

    $27.78 /hr
    6 hours
    0.00
  2. Daniel J.

    Daniel J.

    Senior Systems Administrator

    United States - Tests: 4 - Portfolio: 1

    I am a Linux expert. I have been a linux user for 16 years and have used it professionally for 14 years. I was an early adopter of the Nginx web server and over the last 4 years I have been using it exclusively to manage high traffic web sites. I specialize in Linux security and have professional experience securing a web server using methods such-as but not limited to; chroot/jail environments, hardened kernel patches, and role-based access policies. I am an expert at tracking down even the most difficult of problems and most of my clients believe that I have a crystal ball under my desk. I am fluent in Python and PHP and can write everything from small scripts to automate tasks to a full blown command line application.

    $50.00 /hr
    32 hours
    5.00
  3. Alexander C.

    Alexander C.

    Scala / Java / Haskell developer, Full Stack Engineer, Consultant

    Russia - Tests: 2 - Portfolio: 2

    Java developer with 8 years of experience. Now also Groovy(2 years) and Scala(1.5 years) developer. Java: Hadoop, Nutch , Lucene/SOLR/ElasticSearch, Morphia(MongoDB ORM), parsers/crawlers(using Apache Httpclient, HtmlUnit and own microframework), Web MVC(Struts 1.x/Grails), Java Desktop Applicatins(Swing) / Applets, webservices (w. Restlet framework), RabbitMQ Java client, Riak Java Client Scala: PlayFramework 2.x, Lift, Akka, ReactiveMongo Groovy: Groovy scripts / Gant build scripts / Gradle Databases: SQL(PostgreSQL/MySQL), MongoDB, Riak, SOLR/ElasticSearch PHP scripts, linux(fedora/centos/ubuntu) server administration, SVN / Git, SEO methods/scripts, affiliate marketing. Check my blog(chepurnoy.org)/GitHub(kushti) also.

    $60.00 /hr
    1,026 hours
    4.99
  4. Giorgi Javakhidze

    Giorgi Javakhidze

    MCITP | Vmware | Windows - Linux Systems Administrator

    Georgia - 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
  5. Evgeny K.

    .NET Team Lead

    Russia - Tests: 3

    Over 3 years of overall experience in IT field, analysing, designing and developing C# \ .NET based enterprise applications. Expert level knowledge of C# \ .NET. Excellent OO development skills, taked part in large projects, also in small and average projects too. Have architecting and designing experience, especially when working on project alone or with a small group. Experience in full development life cycle through OO Analysis/Design (sometimes used UML), to implementation, testing and deployment. Management and coordination activities of employees (have experience of leading 2-4 developer's team). Have a good experience of working with big (20+ developers, as developer) or small (1-5 developer's, as lead developer, architect) teams. Have a good experience of remote working and communicating. Programming languages and technologies: Visual Studio 2005/2008/2010, C#, .NET Framework 2.0+ (including WinForms, ASP.NET, WCF, Silverlight\WPF, LINQ, ADO.NET, Entity Framework), Web Services development (common and WCF services), WinAPI (+ P\Invoke), HTML, Javascript (+ jQuery), AJAX, CSS, T-SQL, MS SQL Server, XML (+ XSD, XSLT transformations), creating installers using WIX or standard Visual Studio install project. Microsoft Sharepoint development: Microsoft Office Sharepoint Designer, Microsoft Office Sharepoint Server (managing, administration, development), development: Web Services, Web Parts, Features, Jobs, Pages, Forms, Solutions etc.). Experience both with 2007 and 2010 versions. P.S: very interested in Haskell and Erlang projects.

    Groups: Application Developers Alliance, Coding Champs...

    $30.00 /hr
    5,772 hours
    5.00
  6. Jayson Cena

    Jayson Cena Agency Contractor

    Linux(Debian/Red Hat),Oracle DBA, Linux Cluster Admin,Virtualization-H

    Philippines - Tests: 4

    To obtain a position that will enable me to experience and learn new ideas on system administration like complicated enterprise infrastructure design specially high-availability and fault-tolerant infrastructres. My core competency lies in designing new system infrastructure using open-source software. I also have some experience in VB6, ASP, PHP. http://clusterfoundry.com

    Associated with: ClusterFoundry Agency

    $26.67 /hr
    1,137 hours
    5.00
  7. Joshua Andre Basarte

    Joshua Andre Basarte

    Software Developer

    Philippines - Tests: 2

    A software developer with certifications in Java SE and Agile Development, among other things, I have worked in the telecommunications industry since 2009. Creating backend applications, mainly in Java and PHP, writing scripts for stats collection and application suite health, as well as Database design are some of roles that I have taken on in my career. I also have had some experience creating proof-of-concept Mobile applications in iOS and Android, as well as researching and testing new applications as possible solutions to different problems. I look forward to facing new challenges, strengthen my skills and add new ones along the way, and hopefully create a products that are awesome and useful to the world.

    $18.00 /hr
    3 hours
    0.00
  8. Nathaniel Jennings

    Nathaniel Jennings

    Linux Administrator/Engineer

    United States - 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
  9. Faisal Rehman

    Faisal Rehman Agency Contractor

    Linux Systems Administrator

    Pakistan - Tests: 2 - Portfolio: 2

    System Administration is the key area I’ve enjoyed a lot to work with from the very first day when I actually started my professional career. The achievements range from setting up, installing, configuring, troubleshooting & monitoring UNIX, Solaris & Linux servers, VoIP, Web & LAMP servers especially having CentOS, Ubuntu & Red-Hat as major distributions. Specialities: System Administration (Linux, UNIX, Solaris) FTP, DNS, BIND, LAMP Apache, Tomcat, MySQL IP Tables, CSF, APF Firewalls Servers Installation: yum, RPM, Source Bugzilla, Bedbugs, Jira Web Hosting, cPanel, WHM, SSL Nagios, Zabbix, Pandora FMS Server’s Monitoring

    Associated with: techwebweavers

    $20.00 /hr
    571 hours
    4.40
  10. Hardik Shah

    Hardik Shah Agency Contractor

    J2EE Grails Developer

    India - Tests: 2 - Portfolio: 4

    - I've total 4 years of experience in Java/J2ee technology. - Having 2+ years of experience in Groovy & Grails - Having extensive experience with tomcat server and working with CentOS - Having experience in MySQL, Oracle 10G and MongoDB databases. - Having extensive experience in Spring, Hibernate and Struts frameworks. - Having experience in sub version control like Git, SVN etc. - Having experience in Payment gateway integration like Paypal, Moneris, DirecPay, HDFC etc. - Having skill to develop web application from scratch which includes Fontend & Backend. - Having hands on experience with Frontend technologies like Jquery, Java Script, HTML 5 - Having experience in Real-Estate, Financial, Accounting, E-commerce domains. - I can develop very robust product which will work very smoothly and attract the users. - Can deploy product on any VPS, having extensive experience to work with tomcat server. - Highly involved in client interaction, requirements gathering and development of various functional documents for the systems to be developed. - Good knowledge of design patterns like Singleton, Strategy design patterns - Possess strong leadership, and excellent analytical & problem solving skills. - Ability to work in team as well as independently with minimal supervision.

    Associated with: Grails Titan IT Service

    $13.33 /hr
    119 hours
    4.23