CentOS Freelancers

Browse CentOS job posts for project examples or post your job on Upwork for free!

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. John Shipp

    John Shipp

    PHP/MySQL Developer,Javascript,Web Designer,Client and Server Side exp

    United States - Last active: 07/29/2014 - Tests: 10 - Portfolio: 20

    I started programming computers when I was eight years old, and, over the last 30 years, I've realized that I am, well, a programmer. That said, I do have the "people skills" necessary to remain competitive in the world of programming. When needed, I'm a "sit in the corner and program til the wee hours of the morning geek"... otherwise, I'm just a "fun to talk to, easy to get along with normal person". I have always enjoyed the challenge of creating interactive software. With the birth of the modern Internet, I found a new love in web development and web programming. I face every new piece of code as a fresh new beginning... a chance to do it even better, while, still using "what works" from the past. My objective, here at oDesk, it to provide potential employers with my expertise in the field of website design, development, and programming. My skill include, in no particular order: PHP MySQL HTML/HTML5 CSS/CSS3 JavaScript jQuery AJAX Big Data Laravel WordPress Magento CodeIgniter Zend Python PhpDocumenter (PHPDOC) XMPP, OpenFire Google Places API Angular.js Revive Adserver OpenX Adserver OpenX REST API Revive XMLRPC API BitBucket Web Scraping C# ASP.NET Classic ASP MSSQL Twitter API Facebook API Google API Google Maps API Google AdSense API Backbone.js Smarty MS Access Linux Apache nginx PHP Data Objects (PHP: PDO) MailChimp, MailChimp API Google GeoCode API MongoDB LAMP LEMP Ember.js IIS Photoshop Flash ActionScript Intuit Quickbooks API Mint API Twitter Bootstrap cPanel Plesk Authorize.net Stripe PayPal Google Checkout BASIC RackSpace API (OpenStack, OpenCloud, etc.) SalesForce / SalesForce API TinyMCE Yoast SEO MailGun / MailGun API JIRA Confluence

    $280.00 /hr
    3,460 hours
    4.90
  2. Alexander C.

    Alexander C.

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

    Russia - Last active: 05/31/2014 - 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
  3. Roman T.

    Roman T.

    System administrator/Web optimizator

    Russia - Last active: 3 days ago - Tests: 6 - Portfolio: 1

    Project management, magento development, magento speed optimization, mysql optimization, cacti, nginx, zabbix, openvpn, bgp, centos, debian, ubuntu, windows server 2003-2008-2012, MSSQL server, iis, asp, aws, amazon ec2, red5 installator, proxmox, mongodb, virtualization, proxmox, xenserver, openx, highload projects.

    $88.89 /hr
    1,837 hours
    4.92
  4. Clayton K.

    Clayton K.

    Canadian Linux Sysadmin. Debian/Ubuntu/CentOS Django Python MySQL

    China - Last active: 1 day ago - Tests: 4

    I am a native-English-speaking Canadian living in China, with a deep understanding of the Linux/LAMP ecosystem, and dedicated to getting the job done. Particularly strong with Amazon AWS, Django / Mezzanine, Apache/MySQL, network API communications, and back-end web application development. I usually have time to add small new projects, and software development projects. Ask me about big projects, my workload varies! http://expat-it.net/ http://blog.expat-it.net/ I also offer a discount of $1 off my hourly rate for any client who commits to using PGP-encryption for all e-mail communications.

    Groups: Bluehost Developers and Designers

    $28.89 /hr
    3,026 hours
    4.85
  5. Andrii K.

    Andrii K.

    System Administrator

    Ukraine - Last active: 2 days ago - Tests: 5 - Portfolio: 5

    Last 6 years I have engaged in system administration using Apache2, Nginx, PHP, Perl, Python and MySQL including sites for startup companies and small businesses. extensive experience in the deployment of sites and projects of varying complexity, and I am seeking opportunities help you to build your business. I have great experience in: - Linux maintaince/troubleshooting: Debian, CentOS, Gentoo, Ubuntu, RHEL etc - Apache2 + Nginx, Nginx + PHP-fpm, Nginx + PHP-fastcgi, MySQL, Varnish, Memcached. - Linux serverside: iptables, rsync, Bind, OpenVPN, - Mail: Exim, Dovecot, Postfix. - Cloud Hosting: Digitalocean, RackSpace, Amazon (EC2, AWS, S3), Linode, GoDaddy - Hosting providers : Softlayer, Hetzner. - Backup/Migration - Hosting panels : Plesk, whm\cPanel, ISP , DirectAdmin, Virtualmin - Virtualization: Xen, KVM, OpenVZ, Proxmox - Monitoring: Zabbix, Munin, Cacti, Nagios - CMS : Wordpress, Drupal, Magento, Joomla, CS-Cart

    $30.00 /hr
    1,613 hours
    4.99
  6. Lua C.

    Lua C.

    Lead/Senior Engineer

    Malaysia - Last active: 16 days ago - Tests: 2 - Portfolio: 7

    For starters, I’m Clay Lua, a team lead with 8 years of web development experiences, who is currently staying in Kuala Lumpur, Malaysia. I am a graduate from Monash University and I have previously worked for B2Be (Australia based) and Experian Cheetahmail (a Fortune 500 company) who deals with a few million emails daily. I was voted best employee of the year 2008 and receive Best Performance Award for Cheetahmail v1.6 release at Experian (Malaysia) at both companies that i worked for. I also worked for Hewlett-Packard (Malaysia) as a senior ui developer before I became a full time freelancer on oDesk and was notify as one of the top 1% successful freelancer on oDesk. I have in my current repertoire, 8 years of professional web development experience and knowledge including a technical website (http://hungred.com) where I store all my knowledge findings online for sharing. Many of the articles were listed on Google's first page. I am highly skilled with Yii framework, advanced PHP, OOP, MVC, jQuery, advanced JavaScript, git, subversion, vim, CSS, HTML, LAMP, perl, Wordpress, node.js, express.js, sails.js, backbone.js, marionette.js, bootstrap, Amazon web services, deploy.io, mongolab, aws and ocean digital services,web purify, segment.io, filepicker.io, sendgrid, zencoder, agile development and deal with many different interesting scenarios such as big data, high traffic sites, weird performance issues and etc. In terms of seeing whether we will be a fit, here are a few things I look for in a project / client: - excellent team players who are responsive and strive for an objective or a goal in mind - being an individual contractor, I do prefer to work on projects that clearly contribute a business value to the organization they support rather than pet projects or random experiments. I only work on an hourly basis and guarantee to bring you and your team the best experience that you've ever worked with :) P.S: all times are tracked using oDesk time tracker Feel free to contact me with any questions. Good luck on your project!

    $44.44 /hr
    7,880 hours
    4.34
  7. Alex G.

    Alex G.

    PHP, complex algorithms and big data processing guru, C# developer

    Poland - Last active: 1 day ago - Tests: 8 - Portfolio: 6

    Senior PHP developer, high-load projects. 10+ years of PHP development, team lead experience. 7 years of C# back-end applications development. Working with custom peripheral hardware. Thread-safe and high-load applications. 3 years of C development for MCUs (Atmel controllers, Arduino, etc), custom peripherals, basic electronics and electrics skills. Guru in large data sets processing algorithms and different complex data structures (trees, graphs, etc.)

    $40.00 /hr
    1,440 hours
    5.00
  8. Goran D.

    Goran D.

    System administrator, Software developer, DevOps, DB Admin

    Macedonia - Last active: 1 day ago - Tests: 21 - Portfolio: 1

    Continuously upgrading my knowledge and experience on many IT fields. My major expert areas: Cloud computing : AWS, Rackspace, Hostgator. Auto scaling, Optimizing, Minimizing costs, Monitoring Operating Systems : All Windows and Linux operating systems. TCP/IP networking, advanced routing, firewall, vpn, iptables... Development : Java, C#, Delphi, Shell scripts Databases: MySQL, PostrgeSQL, MsSQL, Oracle, MongoDB, Sqlite

    $26.00 /hr
    5,968 hours
    4.93
  9. Ilya I.

    Ilya I.

    Expert Linux administrator, Devops

    Thailand - Last active: 3 days ago - Tests: 7 - Portfolio: 2

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD and Windows Server - proficient Cloud services: AWS, Rackspace SCM: Puppet, Ansible Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Atlassian: Jira, Confluence, Crowd, etc - the whole suite Monitoring: Nagios, Groundwork, Zabbix, Monit, Munin, Cacti Virtualization: Openvz, Vmware ESXi/server, Proxmox Mail servers: Zimbra, Exim, Sendmail, Dovecot Backups: Bacula, duplicity, rsnapshot High availability: Corosync/Pacemaker, DRBD Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding). Performance optimization: Magento, Wordpress, etc.

    $95.00 /hr
    2,571 hours
    4.84
  10. Jalal K.

    Jalal K.

    PHP Web Development

    Bahrain - Last active: 1 day ago - Tests: 2

    Programming is my life and my language. My brother knew I was a programmer before I did. He bought me that first book when I was about 10. That was 23 years ago. I am a programmer with experience in many languages, platforms, and operating systems. I love working with small companies and startups. Whether you need someone to lead your team, program into the wee hours of the night, or just need someone to talk to, I can help. I have always enjoyed the challenge of creating interactive software. With the birth of the modern Internet, I found a new love in web development and web programming. I face every new piece of code as a fresh new beginning... a chance to do it even better, while, still using "what works" from the past. My objective, here at oDesk, it to provide potential employers with my expertise in the field of website design, development, and programming. #1 and All PHP, MYSQL, POSTGRE SQL, JavaME, Javascript, C++, Java J2EE, J2SE. Tomcat, Jboss, Amazon AWS Amazon EC2 Expertise: ========= Banking Software Development Web Development and web programming Softwares Server, DB Optimization

    Groups: Twilio

    $250.00 /hr
    1,181 hours
    5.00