CentOS Freelancers

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Upwork CentOS Jobs Completed Quarterly

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


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CentOS Upwork freelancers typically receive a client rating of 4.85.

Last updated: May 1, 2015
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  1. Bogdan daniel S.

    Bogdan daniel S.

    VCP, MCSA, Exchange, Vmware, HyperV, Servers Expert Admin

    Romania - Last active: 1 day ago - Tests: 8

    10+ years experience in Information Technology (IT) Major areas of expertise: VMware and Microsoft virtualization technologies. Designing and implementing fault-tolerant virtualization clusters SAN and NAS systems (iSCSI, FC) Windows 2003 / 2008 / 2012 Server * Active Directory * Microsoft ISA Server and TMG * Clustering * MS Windows XP/Vista/7/8 desktop/workstation operating systems * Centralized anitivirus systems WSUS * TCP/IP, Switching and Routing * Firewalls IBM, HP, Dell Servers * DNS, DHCP, Wins * Print Server * File Server * Network and Servers documentation * LAN hardware/software administration, design, installation and configuration * Print Server * LAMP Administration * Linux services : squid, postfix, dovecot, firewall, ldap, mysql, nagios, dhcp, bind etc Certifications: MCP - Microsoft Certified Professional MCSA - Microsoft Certified Systems Administrator VCP - Vmware Certified Professional VCP-510 * VCA-DCV - Vmware Certified Associate Data Center Virtualization.

    Groups: Microsoft Certified Professionals

    $22.22 /hr
    2,605 hours
  2. Rafal K.

    Rafal K.

    PHP Team Lead / Architect / Senior developer

    Poland - Last active: 13 days ago - Tests: 5

    I'm interesting in long term projects. Business process automation to bring good quality of service is my main goal. As system architect I integrate best development practices to projects with huge clients base and complex business logic. This includes: - Continuous Integration (revision control system, testing, bugtracking, code quality, automatic deployment) - Application health monitoring and notifications - System backups and disaster recovery plan - Api building (REST API, SOAP) - Integration with remote systems - Working in SCRUM/KANBUN enviroment My preferable tools for new projects implementation and migration of legacy code are currently Zend Framework 2, Symfony 2 and Phalcon. As an in-office employee I had 7 years experience in IT software development area. Now I'm totally focused on fulltime remote work with flexible worktime. Usually this includes morning/weekly meetings and bugtracking system to add tasks. Most of the time I'm available on Skype, Hangouts and email. My personal mobile phone number can be used for emergency notifications/calls too. Technology stack: - Zend Framework 2, Symfony 2, Phalcon (all with TDD in PHPUnit) - Doctrine2 based on MySQL (MariaDB with TokuDB), PostgreSQL, MongoDB(TokuMX) - Apache - Memcached - Git/Svn - Jira / Bitbucket - Continuous Integration (Jenkins) - AngularJS

    $80.00 /hr
    45 hours
  3. Dzmitry P.

    Dzmitry P.

    Automation: data mining and processing. Back-end: dev and integration

    Russia - Last active: 04/16/2012 - Tests: 5 - Portfolio: 6

    I do not re-invent the wheel. I try to build products which one forgets about: working flawlessly in various circumstances and heavy load without generating problems.

    $140.00 /hr
    2,183 hours
  4. Igor K.

    Igor K.

    Experienced Software Engineer

    Ukraine - Last active: 12/18/2014 - Tests: 3 - Portfolio: 2

    Hello, my name is Igor Krasilich and I'm eager to work on your project. I'm from Ukraine, Kiev (UTC+02) and speak Ukranian and Russian (native) and English (able to talk). I have huge experience in PHP and Magento development. I've been working in Magento, Inc, professional services department for two years. My main responsibilities there was to design and develop solutions for our enterprise clients. Now I work in a team of Magento enthusiasts as leading developer and architect. So you can see that I definitely have passion for Magento. I'm ready to work and have experience in both Enterprise and Community Magento editions. I worked for different clients from small home businesses to Fortune 100 companies that gave me strong domain knowlage, I know how eCommerce lives. And last but not least - I'm Magento Certified Developer (Plus), you can verify certificate here http://www.magentocommerce.com/certification/directory/dev/135865/. I have 6+ years of PHP development that allows me to work on general purpose PHP projects. Generally I can be responsible for: - Design and development of PHP applications - Magento server-side development (I don't like frontend too much but able to work with if needed) - Create technical documentation and specifications - Setup environment for your application on Linux - Do stability, reliability and performance review of your application and improve it. Other my interests are: - Python development. I'm familiar with Flask and Django - Ios applications development - Data Science. Big data handling, pattern recognition, machine learning, reccomender and forecasting systems and their application to eCommerce systems.

    Groups: Zend Certified Engineers

    $12.00 /hr
    0 hours
  5. Javier E. Hernandez

    Javier E. Hernandez

    Operations Manager, Linux SysAdmin, ITIL, Poliglot

    Colombia - Last active: 07/15/2014 - Tests: 7 - Portfolio: 3

    Infrastructure consultant and manager, with excellent operative skills, ample technical experience, and knowledgeable of IT operations management. My particular interest revolves around leadership and management practices in IT and Finance. Specialities: Operation of IT services Productivity improvement through automatized tasks Troubleshooting and technical support. Multicultural, multilingual environments (Fluent in Spanish, English and Portuguese)

    $16.66 /hr
    0 hours
  6. Vadim Golub

    Vadim Golub

    Systems engineer

    United States - Last active: 06/17/2014 - Tests: 6

    Productive self-starter with a strong work ethic and analytical skills who consistently achieves goals and has five years of proven experience in network/hardware/systems operation and administration, technical support, and help-desk. Specialties: Network and Systems administration, deployment, migration and support; IT Project Management; Web platform development.

    $27.78 /hr
    0 hours
  7. Reena Vyas

    Expert Java/Hadoop Developer (With 8 years experience)

    India - Last active: 03/02/2014

    Sun Certified Java Programmer (SCJP) programmer having hands on experience with Core Java, Java Swing, JSP, Servlet, ZK Framework and BI tools like JasperServer, iReport. I Also have good exposure to the most demanding Big Data technologies like Hadoop, Map Reduce Programming, Oozie, and proprietary version of Hadoop like Cloudera Hadoop along with Cloudera Manager, Cloudera Manager API.

    $22.22 /hr
    0 hours
  8. Malik waqas A.

    Malik waqas A.

    SQA Engineer

    Pakistan - Last active: 08/12/2013 - Tests: 2

    I have 6 years of Validation/Verification & UAT experience in highly reputed and huge telco’s like mtc Vodafone (Nigeria), Zain (Bahrain), VIVA (Kuwait), Mobily(KSA), Mobilink (Pakistan) & PTCL (Pakistan), with added experience in Technical writing and Scripting/Development

    $3.33 /hr
    0 hours