CentOS Freelancers

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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. Jeremiah S.

    Jeremiah S.

    Senior Systems and Network Administrator

    United States - Last active: 1 month ago - Tests: 5

    I have experience in Cisco, Juniper, Zyxel, HP, Brocade, and Ubiquiti Network Devices and Windows Server and Desktop editions. I have 10 years of CentOS, Ubuntu, Debian, Free/OpenBSD Experience as well. Some of the management panels I am familiar with is cPanel/WHM, Webmin/Virtualmin, and SolusVM. I am a virtulization expert with experience in VMWare, Xen, KVM, and OpenVZ.

    $60.00 /hr
    18 hours
    0.00
  2. Joel L.

    Joel L.

    IT Consultant

    United States - Last active: 5 days ago - Tests: 4 - Portfolio: 1

    15 years of experience in Customer Service, Technical Support and Break/Fix. 9 years of Linux System Administration (performed in parallel with the above) 1 year as a Network Security Analyst. My particular specialty is troubleshooting and problem analysis. More specifically, taking large problems, breaking them into component issues, and resolving the resulting list of issues, thus eliminating the original problem.

    $33.33 /hr
    15 hours
    0.00
  3. Phillip Stephen

    Phillip Stephen

    Expert Systems Engineer/Architect

    United States - Last active: 1 month ago - Tests: 1

    9+ Years experience working in large scale web production environments. Management/Leadership Experince: -Platform Operations Manager at Liquidity -Former Lead Application Engineer at Liquidity -Linux Team Lead at RentPath -Evening/Swing Shift team lead for AT&T Shared Web Hosting Support -Provided training and guidance to new and transferred email administrators and engineers to facilitate rapid transition during merger/departmental reorganization -Created and revised internal training documents, including classified internal website -Wrote and created internal release management process and procedure -Created detailed internal documentation for all newly built environments Recruiting/Organization/Event Planning -Reviewed resumes and conducted interviews with prospective new team members Specialties: Advanced Skills in the following areas: • AWS • Java • Mule ESB • Tomcat • Mac OSX • DNS • Linux • Server maintenance and management • Nagios • HAProxy • JBoss • Jira • F5 Networks Load Balancers • MongoDB • VMware • RHEV • Centos • ElasticSerarch • Nginx • Endeca • VMware Intermediate Skills in the following areas: • Ubuntu • Liferay • ActiveMQ • RabbitMQ • Beanstalk • Chef • Python • PHP • .Net/ASP • Adobe CS Products • Apache • Windows Server • Pandora FMS • Redhat KVM • MySQL

    $65.00 /hr
    0 hours
    0.00
  4. Salvatore Cristofaro

    Salvatore Cristofaro

    Engineering - IT System Specialist - IT Security expert

    Italy - Last active: 03/10/2014 - Tests: 2 - Portfolio: 1

    Master's Degree in IT Security and Digital Forensic Certifications: - ISO/IEC 27001:2013 Leader Auditor Qualified - ISO/IEC 20000:2011 Leader Auditor Qualified - Linux Professional Essentials - Axis Certification Engineering: small/medium Data Center, software design, capacity planning PrograArchitect/Administratormming knowledge and scripting: Java, C/C++, Assembler, Bash System monitoring: Nagios, Server (Linux, Windows, *nix), IP cameras, air conditioners, UPS (soho and industrial one), power generators, air conditioners, environmental sensors Information Security Management System: open source asset management (ISO/IEC 27001:2005, ISO/IEC 20000-1), trouble ticketing, software versioning, revision control Software Service: CSM, Apache Web Server, Nagios, Tomcat Servelet, Icecast, proftpd, Hylafax, Avantfax, Asterisk, Freeswitch, ZRTP, SRTP, qmail, ssmail IT Security and plannig: Data Center design and implementation. Capacity Planning, Business Continuity, Disaster Recovery. Wireless network design (short / medium / long-range), wireless connections simulations based on terrain, VPN (OpenVPN, IPSec), Network Sniffing, penetration test , computer forensics, data encryption / decryption, IP networks design and setup. Cyber attacks Analysis (intrusion detecion, malware, virus), centralized antivirus management. ZRTP and TLS Voip. RFID / Bar code. Video Surveillance: Design and setup of video surveillance systems, with simulations based on land contours. Trashware: design and optimization of systems, LTSP Virtualization and Cloud: design and offline / live (Physical to Virtual) migration, Xen, XenServer, UML, VMware, VirtualBox, Cloud Computing Other: UPS / Electronic Generators / Air-conditioning / Machinery Location / maintenance and real time monitoring of industrial devices UPS, Generators Generators and precision air conditioners. Systems Breton FP400 and Proliner Performance: benchmark suite LMbench, optimization of systems, tuning Apache and MySQL Databases: SQL, MySQL Database Server, PostgreSQL, JDBC, MSSQL 2005/2008 Backup: Live Backup, Disaster Recovery planning and system migration Mobile: Mobile Device Management, BYOD, Android Security and Tuning. OS: GNU Linux (Gentoo / Debian / RedHat / CentOS), FreeBSD, Windows (XP, Vista, 7, Windows 2003/2008 Server), Mac OS X. Basic knowledge of Aix, OpenSolaris,

    $44.44 /hr
    0 hours
    0.00
  5. Mikheil Kantaria

    Mikheil Kantaria

    Drupal Web Developer, LAMP Administrator, AI Engineer

    Georgia - Last active: 11/03/2014 - Portfolio: 2

    I'm a lecturer and PhD of economics in Georgian Technical University My responsibilities are to teach: Web Programming, Decision Modeling and Operations Research. My research fields are: Artificial Intelligence(Genetic Algorithms,Neural Networks,Fuzzy Logic), Robotics, Conceptual Management. I'm lead developer and System Adminsitrator at www.chess-news.ru (Drupal CMS, CentOS) Also I'm International Chess Master with F.I.D.E rating 2350.

    $55.56 /hr
    0 hours
    0.00
  6. Zhirayr G.

    Zhirayr G.

    Agile web development

    Russia - Last active: 4 months ago - Tests: 3 - Portfolio: 2

    Hi, My name is Zhirayr. In my portfolio, are a few of the programs that I've developed. I believe my strong points are my Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Since 2008, I'm freelance web developer. Mostly work with backend (big data, cluster programming, high load). Also from 2012, I develop Ruby / Ruby On Rails applications and websites. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a Bachelors in Software Engineering from Moscow Aviation Institute (National Research University), in the Russia. Listed below are my experience and skills. — Ruby; — PHP; — Frameworks: Ruby On Rails, Sinatra, Laravel, Phalcon; — Core web: XML, JSON, HTML/CSS, JavaScript; — OS: Mac OS X, Linux; — VCS: Git, SVN; — Bug/Issue trackers: Jira, Assembla, Redmine; — SQL: PostgreSQL, MySQL; — NoSQL: Riak, MongoDB, Redis; — AWS: EC2, S3, CloudFront, ElasticBeanstalk, EMP, etc; — UML.

    $38.89 /hr
    0 hours
    0.00
  7. Ajoy Baby

    Ajoy Baby

    PHP Developer - Nesote Technologies

    United Kingdom - Last active: 05/16/2014 - Portfolio: 2

    I have been working as a PHP programmer ,Project Manager and now became a Senior Project Manager since on January 2013 onwards. During all this positions I have shown my best commitment,sincerity and honesty towards the works and to the company.The company assign more and more responsibilities in my shoulders.I can proudly says that I have been managing all security and server related things in Nesote.Through this experience I have studied about cloud servers MySQL replications etc. This experience helps me to solve many servers related issues(both Apache and Centos) for many of our clients. The problem solving ability is the most demanding skill in me. I have proven my strength in this area with appreciation mails pouring in from my clients and senior management of my company.The top management shows me as a role model for other employees. This was a great reward for me. The company honored with Nesote’s “ BEST PERFORMER OF THE YEAR 2012-'13” in 2013 in recognition of outstanding project results. I have good knowledge in PHP 5, MYSQL, HTML,HTML5, CSS, CSS3, XML, JSON, AJAX,Cross domain programming, Jquery, Javascripts. Many of my works are based on XML and JSON based. I am familiar with API integration of various sources like yahoo API, Bing API, Google API, Twitter API, itunes API, Youtube API. All this are used in many of our projects. Experience in installation and configuration of linux web servers. Experience in cloud servers management and SAAS model application development. Experience in Apache scalability (Hadoop/Hypertable), Load balancing using MYSQL replication. Successfully implemented Hadoop/Hypertable multi machine using CDH4 distribution. Experience in the development of various kind of software products like shopping cart,multi-vendor, search engine and web crawler etc. Now I am joined in BPP university for my master degree. Interested in doing some part time works for getting more income. Sample Portfolio http://www.inoutshoppingcart.com/multivendor/ http://www.inoutshoppingcart.com/ http://demo.inout-search-ultimate.com/ http://queryscripts.com/ http://inoutdemo.com/inout_smartdeal/

    $55.56 /hr
    0 hours
    0.00
  8. Joseph Silverman

    Joseph Silverman

    Expert Java, PHP & Drupal Developer - Proficient in CSS, SQL & Linux

    Canada - Last active: 4 months ago - Tests: 3 - Portfolio: 2

    I have been working as an independant contractor for the last 12 years specializing in network architecture, VoIP deployment and windows server administration. Holding a number of management positions over the years, I have been exposed to the business processes of both large and small companies. I have worked with a variety of operating systems, programming languages and hardware, leading to web development on the Drupal platform and a proficiency in Linux, PHP, CSS, JavaScript, Java, SQL, C, SVN and GIT. I am looking for a new opportunity that will allow me to build on my current skillset set while leveraging my experience in business management.

    $35.00 /hr
    0 hours
    0.00
  9. Mike Dixson

    Mike Dixson

    Technical IT Consultant

    United Kingdom - Last active: 05/20/2014 - Tests: 2

    With over 12 years of IT experience and a keen logical mind I'm able to consult on a wide range of IT projects, with specialist knowledge in Networking, VMWare Virtualisation and Windows Server. Past projects include: - Deploying an enterprise university wired and wireless network, supporting over 7000 devices. - Provisioning a guest wireless captive portal system supporting major clients in a high profile event. - Live Migration 7000 users to Google mail

    $200.00 /hr
    0 hours
    0.00
  10. Ryan Echter

    Ryan Echter

    Linux Administrator

    United States - Last active: 09/03/2014 - Tests: 2

    My expertise lies in the web hosting industry. I've been in the web hosting industry for nearly 10 years and loving it. Most of my experience has been with cPanel server and the software that is included such as Apache, BIND, MySQL, PHP, etc. I've also worked with installing various software such as Red5, Atlassian products, etc. I've also worked a lot with migrating data between servers as well as backup configuration.

    $50.00 /hr
    0 hours
    0.00