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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. Dmitry Gorlov

    Dmitry Gorlov

    Linux Admin / Oracle certified professional

    Russia - Tests: 11 - Portfolio: 1

    Under construction... I start my IT career since 1992 using FoxBase by IBM-compatible 286AT computer. Today my phone have more powerfull CPU :-) In Linux from 1997, begun from Redhat 6.0 In Oracle from 2003, begun from 8.1.7 10g OCP Certified in 2007. Microsoft MCP in 2007. http://krasitel.blogspot.com

    $20.00 /hr
    426 hours
    5.00
  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. Jonas M.

    Jonas M.

    Cloud Systems Architect, Amazon AWS expert, Linux Admin

    Lithuania - Tests: 6

    I'm experienced DevOps guy, Linux Server Administrator (over 9 years) , Cloud based solutions engineer (mostly on Amazon AWS) My experience: Linux based servers solutions SaltStack Infrastructure Automation and Cloud Orchestration Continuous Integration with Jenkins Vagrant, Docker for devs Amazon AWS cloud solutions Migrations to Amazon AWS platform Linux servers setup: Ubuntu, CentOS, RedHat System tasks: administration, configuration, backup solutions, audit, optimization, benchmarking Amazon AWS - running projects on EC2, RDS, VPC, SimpleDB, S3, CloudFront, Route 53 dns, ELB, AutoScaling, CloudWatch, ElastiCache, IAM, SES, SNS services. VPS: Cpanel / WHM / Plesk / DirectAdmin / Webadmin - Migrations, management, hardening, configuration, security maintenance. Backup solutions for AWS, Linux servers VMware (VCP certified) - vSphere ESX servers, vCenter servers, VMware View infrastructure administrator Websites projects running on nginx, apache, mysql, LAMP stack Experience with HPC clusters, HPC management software for Linux systems including multiple Linux operating systems, linking and building libraries Development, testing, stageing environments installation,preparation for production/developement process (svn, git, jenkins, bash scripts, phing) SaltStack, Puppet, Vagrant, Docker Experience with scripting language such as PHP, JS, Bash-Scripting, NodeJS Cloud SaaS services: goolge apps, owncloud Atlassian software installation, setup (jira, confluence) Wordpress, Drupal installations

    $50.00 /hr
    117 hours
    4.75
  4. Sergei L.

    Sergei L.

    Database engineer & system architect

    Russia - Tests: 6

    My experience: - Creation architecture of www.ximad.com - working now in www.cs-cart.com as system architect Strong knowledge: - CentOS(RedHat), Debian, openSuSE - Nginx, Apache - Bash, PHP - MySQL - Amazon AWS( S3, EC2, SNS, CF, RDS ) Work with: - Memcache / Redis - MongoDB I've had various expirience with high-load servers and architectures and I'm looking for non-standard, complex work, that should be interesting for me. If I'll really like your task , I could give you even a discount :-) Profile on the stackoverflow: http://stackoverflow.com/users/1032042/sergei-lomakov

    Groups: Coding Champs, Microsoft Certified Professionals

    $30.00 /hr
    134 hours
    4.96
  5. 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
  6. Vsevolod Ryabokon

    Vsevolod Ryabokon

    Linux System Administrator, Joomla developer

    Ukraine - Tests: 1 - Portfolio: 3

    I am 10+ years in linux servers administration. web-servers, networks, firewalls, gateways, routers, vpn, vlan, mail-servers, samba, asterisk, ftp, virtual severs, wifi? videobroadcasting. Can make joomla templates and components. Shell, php scripts. Flash programming with actionscript.

    $10.00 /hr
    16 hours
    4.91
  7. Sandi Verdev

    Sandi Verdev

    Senior PHP programmer and system administrator

    Slovenia - Tests: 8 - Portfolio: 10

    I am a Zend PHP5 Certified Engineer with extensive knowledge from diferent areas: * web development (PHP, MySQL, PostgreSQL, Zend Framework, Wordpress,...) * application design (db design, user interface design, user experience, responsive design) * system administration (setting up LAMP stack servers, nginx server, BASH scripting,...) I am also the author of popular Wordpress plugin Watermark RELOADED.

    $22.22 /hr
    6 hours
    4.89
  8. 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
  9. 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
  10. 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