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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: September 1, 2015
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  1. Joan-Alexander Grigorov

    Joan-Alexander Grigorov

    OMG-Certified UML Professional

    Bulgaria - Tests: 3 - Portfolio: 2

    Software Engineer over here! Domain-driven design enthusiast with passion for structuring flexible OO design with PHP. Certified as UML Professional (Fundamentals) by Object Management Group on December 2013. For the last 4 years I've been actively developing web applications using Zend Framework (since July 2012 I'm Zend Framework Certified Engineer). Expert in design patterns with over 4 years of professional experience. I'm developing enterprise web applications, file sharing systems, websites, web application frameworks, etc. Achieving high quality of code, good performance and reusable object-oriented software design is my primary goal when working. I don't underestimate documentation as my source code is always well documented, with end-user manuals when needed. In the last two years I've gained rich experience with Dependency Injection and Service Locators and successfully applied those approaches my projects. I'm always ready to learn new approaches, if they could make my work quicker and easier. I have experience in educating developers. I've been teaching students PHP, Zend Framework(basic and advanced levels), MySQL, jQuery, Design Patterns and etc. I'm seeking to develop big and complex web applications using the last technologies and software development methodologies.

    Groups: Zend Certified Engineers

    $20.00 /hr
    3,373 hours
    0.00
  2. Ryder S.

    Without a plan it will fail.

    Japan

    *Server Technician Being in the business of servers and IT Infrastructure. Building and optimizing servers for web applications has become my business. Each client has their own needs for their business. It is my business to have their systems work for their business * System Adviser / Consulting Making a plan Building a new system What is a great way to do this Looking at it from outside the box or another point of view. Taking the time to address this saves businesses both time and money. * Server Admin Install Applications Optimization Troubleshooting or addressing an issue

    $115.00 /hr
    0 hours
    0.00
  3. Anang Prasetyo

    Anang Prasetyo

    Experienced Web Developer and Internet Marketing Consultant

    Indonesia - Tests: 7 - Portfolio: 4

    Hi, I'm Anang Prasetyo, I'm experienced web developer from indonesia, i usually developing website using PHP-MySql with CodeIginiter Framework. Sometimes i use CMS such as Wordpress, magento, woocommerce based on request and best approach. I can do Internet Marketing jobs too.. Email marketing, PPC, A/B testing, Google Analytics, just mention it. I can help you if you want make your company bigger through internet Thanks

    $22.22 /hr
    5 hours
    0.00
  4. Ernesto Vargas

    Ernesto Vargas

    IT Architect, Linux Admin, DBA, AWS, HA, Scale Out

    Costa Rica

    With over 20+ years of experience, I have worked on several different IT roles: systems administrator, network designer, database administrator, Software Developer, analyst, architect, CTO. This background allows me to find many different solutions outside of programming. I have a solid track record of efficiently designing and implementing web applications and Internet solutions for companies of all sizes. Demonstrated talent for creating, executing, and maintaining large and small internal networks based on the needs of clients. I am a quick learner with the ability to easily use and apply new information. Fluent in, English and Spanish. Specialties IT Management, IT Administration, Software Development and Design, DBA, System Architecture and Scale-Out solutions, Agile Software Development and General information technology services. Linux RHEL, CentOS, Fedora, Nginx, Apache, MySQL, PHP, Zend Framework, PHP Doctrine ORM, Memcache, Sphinx Full-Text Search,Gearman batch job, CDN, Jquery. OpenX Ad Server Consulting, Drupal, WordPress.

    $40.00 /hr
    0 hours
    0.00
  5. Hasan Kurtoglu

    Hasan Kurtoglu

    PowerMTA Administrator and Deliverability Expert

    Turkey - Tests: 1

    Have administration experience on linux/windows servers and MTA's. Have been managing PowerMTA servers since 2008,have deep experience on managing PMTA. Achieved sending 150K emails in a minute,1 billion emails in a month to inbox! Helped many companies setup their email infrastructure from scratch. Have helped setting-up several ESP infrastructures. Currently serving to many companies around the world on their sending infrastructures. Total volume of managed PMTA servers of the customers is nearly ~5 billion emails per month to inbox!( mostly :) ) Deliverability experience on mainly Hotmail,Yahoo and Gmail. Currently open to any PowerMTA installation,configuration,optimization and deliverability consultancy jobs. Please visit my references page to get an idea of my expertise : http://powermta.me/our-references Specialties: System Administrator PowerMTA Administrator Email Deliverability Specialist

    $120.00 /hr
    0 hours
    0.00
  6. Akram Hasan Sharkar

    Akram Hasan Sharkar Agency Contractor

    Other option

    Bangladesh - Tests: 1 - Portfolio: 4

    Wish words could explain my passions toward efficiency. Consider myself as an old owl (wise fella). Love to work, give my best effort for success. Giving up, I never tried this option B. I am core PHP programmer, web designer and linux administrator. I know the whole life cycle of byte algorithm and utilize them with my work. Worked with many top leading companies and developed thousands of web applications. I am pretty good with Email system as well, when i said pretty good It is freaking extreme for someone else. I do believe .. .. "Life is what we make it".

    Associated with: Owntech Web Solution

    $11.11 /hr
    0 hours
    0.00
  7. Owen Sakawa

    Owen Sakawa

    Engineer

    Kenya

    -An enthusiastic Software Engineer with a robust programming and software development background having nearly five years of experience in Design, Coding and Debugging. PROJECTS: 1. AC Precision (Driver development) 2. COTS Module Backplane Change and spares system (Driver development/porting/update) Achievements- - “XBN” developed in Java. - “ZOL” Game developed in Android. - “PWS” Game developed in Android.

    $50.00 /hr
    0 hours
    0.00
  8. Luis Medina

    Luis Medina

    Linux System Administrator

    Mexico - Tests: 5

    Linux system administrator with +10 years of experience working in IT environments across data centers, blade server farms, individual server and cloud servers. Currently working for a company with presence in 5 countries and operates through linux servers. Over 2 years of experience as IT engineer for Mobile Media company with presence in 12 countries. In charge of +25 linux servers and mission-critical server for 24/7 billing schedules. More than 5 years working as Linux server administrator on the local state university in charge of 52 servers and more than 15,000 users of services such as HTTP, HTPPS , (S)POP3, (S)SMTP , DNS , FTP, backups, etc. Experience with IBM blade, HP ProLiannt, HP Blade and Dell PowerEdge Servers Experience with VMware and XenServer virtualization environments. Extensive experience with RHEL, CentOS, Debian and Ubuntu Server. I run my own Linux servers to host my personal blogs with more than 100,000 monthly visits.

    $19.00 /hr
    0 hours
    0.00
  9. Aleksandr D.

    Aleksandr D.

    system administrator

    Ukraine - Tests: 2 - Portfolio: 1

    I'm specialized in install and support email servers for bulk emailing, DNS servers, maintenance of web developers, scripting for routines procedures. Last time I use RedHat and CentOS on servers.I have more then 8 years experience. So I have experience in building and supporting networks - for big offices and regional backbone networks: TCP/IP, routing, VPN PPPoE. Wired and wireless. I was an active member of network builders team about 8 years ago during about 4 years. In that time I used FreeBSD for server. My goal is to learn something new and use my experience to do something usefull.

    $12.00 /hr
    0 hours
    0.00