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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, 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: July 1, 2015
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  1. Andres Olvera

    Andres Olvera

    Expert Wordpress/PHP developer | Scripting expert

    Mexico - Last active: 3 months ago - Tests: 18 - Portfolio: 2

    I have lots of experience building and enhancing WordPress plugins and building themes from scratch. My main strengths are: - Clean coding - 100% Wordpress coding standard compliant - Availability - usually respond within 5 to 10 minutes to any queries during CST workhours - Fast and top quality work I also have experience developing web pages using Perl and/or PHP, Javascript/jQuery, VBScript, CSS, Ajax and MySQL databases. I worked for a Fortune 500 automotive company in a reporting and analysis position, and also building and maintaining a website in the company's intranet using Perl and MySQL. After that I was in charge of supporting a website built with Java and the Spring framework, using both MySQL and Oracle databases, for customers worldwide. I also worked at the tech support helpdesk for that same company for over a year, troubleshooting Linux servers and workstations, networking and other data related issues. I was also in charge of administering KBOX ticketing system for over a year, from content management to database administration, to scripting solutions for its customers. I also have knowledge in scripting using different technologies, such as VBScript, Javascript, Linux shell scripting, Perl, and some Powershell, as well as VBA for Excel and HTAs. I was also regularly troubleshooting C and Java programs for bugs and/or enhancements. After that, I moved to a company named Softtek as a Software Engineer, I was part of a team that develops Wordpress plugins and themes for an American multinational conglomerate corporation. The last position I held was for yet another company as a Linux intermediate administrator, where I was in charge of managing users with Centrify and I also installed Cacti to monitor some of the company's servers running CentOS. Currently, I work on my own mostly developing Wordpress plugins and themes. I have specialized myself working on web development, mainly PHP with MySQL databases, but also Javascript/jQuery for the front end.

    Groups: Bluehost Developers and Designers, LoginRadius

    $88.89 /hr
    90 hours
    4.96
  2. Evgeny K.

    .NET Team Lead

    Russia - Last active: 1 day ago - 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
    5,631 hours
    5.00
  3. 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
    1,364 hours
    5.00
  4. Dallas Engelken

    Dallas Engelken

    Web Architect

    United States - Last active: 8 days ago - Tests: 3 - Portfolio: 1

    I build dynamic, scalable, database driven web projects in Mysql and Perl. I operate a service which handles nearly 1 billion queries per day through Amazon EC2. I am an expert in Mysql development and administration, as well as Perl, HTML, and CSS. I have experience with google-maps-api building dynamic database driven maps, as well integrating paypal-api for Paypal Payments Pro credit card processing.

    $25.00 /hr
    23 hours
    5.00
  5. Kim L.

    Kim L.

    Web Developer

    Philippines - Last active: 1 day ago - Tests: 3 - Portfolio: 6

    I am a seasoned and passionate web developer with 4 years of web development experience. I develop and maintain high-end, multi-layer web applications on different frameworks. I do both front-end and back-end development. However, I specialize on back-end development as I have been doing a lot of back-end work for over 2 years. Through the years, I have received multiple awards and recognition from different well-known and government recognized IT organizations in the country. Technical summary: Summary: + I work with Git on a daily basis + I work with PHP and other web development languages on a daily basis + I works with SQL on a daily basis. + I works within Jira on a daily basis + I works on Ubuntu, Debian, and CentOS on a daily basis. + Does some server maintenance on CentOS, and Debian servers. + Able to function independently and/or with an agile team + Works with Philippine and US developers on a daily basis + Worked on projects using Laravel, CodeIgniter, Zend2, and some in-house frameworks. + Fast learner + Strong problem solving skills + Strong analytic skills + Strong communication skills with a range of technical understanding Background: + I have a Bachelor's degree in Information Technology and currently taking up my Master's degree in Information Technology. + I was awarded Best Programmer and Best in Information Technology Thesis during my graduation from college. + Detail oriented. I have worked on some high-end multi-layer web based student information system being used by more than 3 states in the US (roughly 2 million users), an e-commerce site in Australia with matching server admin, project management and consultancy tasks, and some web applications in some government agencies and educational institutions here in the Philippines. For more information: http://kimlagonoy.juplo.com/portfolio.php

    $5.56 /hr
    0 hours
    4.70
  6. Sabin S

    Sabin S

    WordPress Expert, Web Developer, Sr. Web Server / Database Admin/Guru

    Nepal - Last active: 09/22/2013 - Tests: 14 - Portfolio: 18

    Over 14 years of SysAdmin / Web Hosting / Web Developer experience I believe that Communication, Deadline, Integrity and Commitment are vital to a project success. I am RHCE Certified. My Expertise are Install, Optimise, Tuning , Hardening Security & Troubleshooting 1) Linux Server: Centos, Redhat, Ubuntu, Debain, Fedora, Freebsd, Sun Solaris, Vmware ESXI V4/5, Xen etc. with Bash, Perl. 2) Amazon: AWS, S3, EC2, VPC, RDS, SQS, FPS, Simple DB, Load-Balance, Scaling, EBS, Route53, Webservices etc 3) VPS / Dedicated Servers Setup Secure Hardening Security : Godaddy, MediaTemple, Rackspace, Bluehost, Cloudfoundry etc. 4) Web / Application Server: Apache 2, PHP, suPHP, Python, Perl, Nginx, Lighthttpd, Tomcat 5.5/6/7, Oracle Application,IIS Server etc 5) Others: SSL Certificate, Bind DNS, Vsftpd/Proftpd FTP, Squid, GIT, SVN, Varnish, Memcache, eAccelators, Cloudflare, CFS, Fail2ban, (D)DoS Deflate, IPTABLES etc. 6) Database: MySql 4.1/5/5.5/6 , Postgresql 8/9.1, MSSql, Oracle11g Setup, Secure, Tunning performance, Troubleshoot, Repair, Replication, Cluster etc. 7) Control Panels & Graph: Plesk 8-11.x, WHM 11.x, Webmin 1.x, ISPCONFIG, DirectAdmin, PhpMyAdmin , PhpPgAdmin, MRTG, Cacti, Nagious, NewRelic, Boundary etc. 8) Mail Server: Qmail, POSTFIX, Exim, Sendmail, Exchange Server 2005/2007, Squirrelmail, Horde, PHPlist 2.10.x 9) CMS: WordPress, Magento, SugarCRM, Joomla, Drupal, Zencart, SocialEngine, Zen Cart, OS Commerce, vBulletin etc. 10) Backup Upgrade and Migrate Sites & Server: Wordpress, Drupal, Magneto, Joomla, Magento, PHP Mysql Sites, others Domain Name Server Setup, Domain Transfer with zero DownTime, Google Apps setup etc. 11) Clean Virus, Malware and Secure Servers and the Sites like WordPress,Drupal, Joomla, Magento, PHP Mysql site, etc. 12) Windows Server 2003/2008R2 IIS, DNS, Active Directory, VPN, MS SQL 2005/2008, FTP, Plesk etc. I have over 8 years of Expertise Designing UI, Coding WordPress and also developed and customised lot of PLUGINS, Themes, Widget, Feed, SEO, Cacheing and can also work with WordPress VIP Standard. I have also good knowledge of Genesis, Woo themes & ecommerce, Thesis, Canvas, PageLines DMS, Catalyst, Gantry, Elegant, Headway, iThemes, Themify, Seed etc framework. I code, secure and design a wide range of websites and software using Web 2.0 Strategist, HMTL , XHTML, JAVA SCRIPT, JQUERY, DHTML, AJAX, SEO, PERL, PHP 5 , MySQL 5, SMARTY, PHOTOSHOP, ILLUSTRATOR, JAVA 6, J2EE, Wordpress 3, JOOMLA, DURPAL, Magneto, Zen Cart, OS Commerce, vBulletin, SocialEngine 2 & 3, Clip-share etc You can see my experience details in my ODESK profile. If you need more about my experience please message me. Please feel free to contact me to discuss the project any time. I look forward to work with you in near future. Thank you, Regards, Sabin Shrestha

    Groups: Red Hat Certified, SocialEngine

    $22.22 /hr
    775 hours
    5.00
  7. Ronald Artos

    Ronald Artos

    System Developer / Linux Administrator

    Philippines - Last active: 3 months ago - Tests: 1 - Portfolio: 1

    I've been in this field of computing, where I administer Linux as the primary operating system for servers and desktop. Deployed over 60 servers for different company, locally and remotely accessed machines. I am also working right now as a web developer and have been in projects which core system for business like ERP using RubyonRails as the development platform.

    $7.70 /hr
    4 hours
    5.00
  8. Kaspars V.

    $44.44 /hr
    113 hours
    5.00
  9. Michael P.

    5 Star USA Web Applications Developer

    United States - Last active: 06/01/2013 - Tests: 5

    Todays world is ever evolving. You need an expert who will evolve with the world and help bridge the gap between your needs and the latest technology. I provide frustration free, clean, and clear solutions that you and your business can rely on. Good help is hard to find..correction, was hard to find. Send me a note. Let's talk today. Technologies I'm Currently working with: -Magento -CodeIgniter -Yii -HTML5 -CSS3 -PHP5 -JSON -XML -SOAP -REST -mongoDB -MYSQL -Postgres -Javascript / jQuery / Backbone.js / Node.js / Socket.io / Three.js / Kinetic.js / Require.js / CanJS

    $110.00 /hr
    225 hours
    5.00
  10. Igor S.

    Igor S.

    Linux sysadmin, cloud deployments specialist

    Czech Republic - Last active: 7 hours ago - Tests: 9 - Portfolio: 1

    I would like to offer you my deep knowledge of server hardware and software, which allows me to fine-tune servers according to their roles, and my ability to anticipate and solve problems in shortest time possible. Unix only, Linux preferred. I am a developer of cloud monitoring & management tool M-Script ( http://m-script.org ), a simpler and easier to learn tool compared to alternatives, yet powerful and allowing faster cloud-based deployments including cross-cloud deployments, private clouds support, images management, cloud scripting of maintenance routines and any complex cloud automation (auto-scalability or any event/action programming). No matter how complex (or simple) your setup is, it can save you a lot of time and money and provide a seamless transition from initial proof-of-concept setup to full production infrastructure.

    $40.00 /hr
    7,089 hours
    4.88