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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: August 1, 2015
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  1. Jayson M.

    Jayson M.

    Webdevlopment, Data Specialist,SEO,Javascript, CentOS, Linux Admin

    Philippines - Tests: 2 - Portfolio: 3

    To obtain a challenging and responsible position of Base station subsystem engineer within the telecommunication department that facilitates learning and provides strong communication, organizational and analytical skills. I feel that my educational qualification as well as the previous work experience will definitely help me to serve better for the organization.

    $3.00 /hr
    1,591 hours
    3.62
  2. Oleg B.

    Oleg B.

    Windows, CENTOS & FreeBSD administrator

    Russia - Tests: 4

    Windows, CENTOS & FreeBSD administrator with over 10 years of hands-on and multi-tasking experience, adept at handling multiple system operations, including installation, upgrade, configuration, administration and maintenance of these systems. TECHNICAL PROFICIENCY Windows Server Administration (Windows 2003,2008,2012) Hyper-V Administration IIS 7.0 Administration Active Directory Administration TCP/IP Network Troubleshooting Working with MS SQL Databases FreeBSD Administration Postfix, Courier IMAP, qmail Administration Apache, PHP, MYSQL Administration

    $22.00 /hr
    0 hours
    5.00
  3. Max Topal

    Max Topal

    VoIP/Network/Linux Engineer

    Russia - Tests: 3

    Over 8 years hands-on experience. I have deep knowledge on VoIP Hardware and softswitches from open-source one (Asterisk, Elastix, Askozia, Freepbx, CallBox, Trixbox, Welltime, Yeastar) to licensed (Switchvox, Panasonic, Mera, RTU) . I am providing Asterisk-based PBX installation\integration, support, troubleshooting and consultations. Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL, PostgreSQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Provide VoIP Security * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. I have more than 100 successful IP-PBX server deployments, so I am confident that you will be satisfied with my work completely.

    $20.00 /hr
    0 hours
    0.00
  4. Donovan F.

    Donovan F.

    Cloud Engineer and Linux Expert

    South Africa

    I am an accomplished Systems Administrator with over 13 years professional experience building infrastructure and platforms for small web hosts, the enterprise data center and the cloud. My primary specialties are Linux systems, open source software, and cloud platforms. I began my career integrating Linux systems and varies opensource technologies for Internet Service Providers and Telecommunications providers. I realized that integrating programming/scripting into my skill set would automate and provide easy of implementation to many of my projects. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - RHEL, CentOS, Ubuntu, and FreeBSD Datastores - MySQL, PostgreSQL, Memcached, Redis, MongoDB Monitoring - Nagios, Munin, Cacti, Shinken Management - Chef, Puppet Platforms - AWS, Rackspace, OpenStack Frameworks - Rails Lanaguages - Ruby, Python, Perl, PHP SCM - Git, SVN

    $27.78 /hr
    6 hours
    0.00
  5. Artem Lalaiants

    Artem Lalaiants

    Linux System Administrator

    Ukraine - Tests: 3 - Portfolio: 2

    I'm a highly competent and organized Linux System Administrator with more than 4 years of experience in Linux Administration, hosting environment and maintenance of production and development servers. In-depth knowledge in management and configuration of Linux based servers, development of HA systems and security policies. Fascinated with automation of processes in shell and Python. - Linux maintenance (CentOS, Debian, Ubuntu, CoreOS, RHEL); - Cloud hosting (Amazon EC2, RDS, S3, DigitalOcean Droplets); - Virtualization: (VirtualBox, Vmware, Openvz, Xen); - Web servers (apache, nginx); - Databases (MySQL, PostgresQL); - Monitoring (zabbix, nagios) - Mail servers (postfix, sendmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot); - Networking (DHCP, DNS, VPN, OpenVPN, firewalls: iptables/ipfw, qos, proxies); - Python programming. Graduated from V.N. Karazin Kharkiv National University, Kharkiv, Ukraine, Department of Complex Information Technologies. Have a master's degree.

    $10.00 /hr
    0 hours
    0.00
  6. Rahul Sharma

    Rahul Sharma Agency Contractor

    WebMaster Admin | Linux | CentOS | RHCE | AWS-EC2

    India - Tests: 5

    This is Rahul Sharma from Picnframes Technologies. 5+ years experience in Network administration, Database Management, Linux Programming and Networking, CentOS Expert. CERTIFICATIONS:- RHCE, CCNA, MCP MCP ID#6462262 Certified in 2008 RHCE Traine in 2009 CCNA ID#CSCO12251194 Certified in 2012 RedHat certification ID #140-040-692 Certified in EX300 & EX200 in 2014 Configure Cloud Server: Citrix server, ESXi Server 4.0, AWS-EC2, AWS-S3 Migrate Linux Hosting Server Linux Expert- Ubuntu, Mint

    Associated with: PIC N FRAMES TECHNOLOGIES

    $20.00 /hr
    0 hours
    0.00
  7. Ritesh S.

    Ritesh S.

    RHEL / CentOS System Admin, AWS, WHM/Cpanel

    India - Tests: 3 - Portfolio: 2

    Handling unmanaged VPS, Dedicated Server with core console (Terminal). -Giving sites maximum Uptime. -Implementing new policy and maintain backup and backend server. -Prevent from websites hack (SQL Injection, FTP bypass, Brute force on SSH Tunnel ) -Maintain All site on Nginx and Kloxo with limited sync time. -Manage shop cart Zencard and Magento site on servers and make server compatible . Penetration Testing: -Client side attacks - Server side attacks - Web applications vulnerability scans - Custom exploiting techniques - Social engineering

    $17.86 /hr
    518 hours
    5.00
  8. Mkhitar Mirumyan

    Mkhitar Mirumyan

    Network and System Adminstartor (RHEL/CentOS Linux, Debian/Ubuntu)

    Armenia - Tests: 6

    Personal Data Born date: 19 June 1976: 1a quarter, 2 building, 52 apartment, Charentsavan, Kotayq region, Armenia, 378562 Phone: (+37493)190611 E-mail : mkhitar@gmail.com Education: June 2002. Have completed PhD Thesis at Yerevan Physics Institute and have degree of Doctor of Physics. Oct.1998. oct.2001. PhD student of Theoretical Physics Department at Yerevan Physics Institute. Sept.1993. June 1998Ã. Yerevan State University, Theoretical Physics Department Scientific workshops: 15.08.2002-21.08.2002 UNESCO workshop: “Integrablility in QFT and Quantum Statistics” (Tbilisi, Georgia) 02.06.2003 - 10.06.2003 Summer school on mathematics in string and field theory at ICTP (Trieste, Italy) Work experience: December 13 2010 – to present Head of IT Administrators Group Network and system administrator Linux (CentOS) an d Windows 2008 Based corporate network ( Active Directory, Gateway, VPN server (ipsec from Linux to Cissco, Linux-Linux via ipsec and pptp), Apache, MySQL Database Administration, Mail, FTP and SFT Servers, Linux based SMS Gatway (kannel), basics of traffic shaping, Proxy Server ( Squid, Kerio, Traffic Inspector) iptables ). ACRA Credit Reporting Bureau October 2001 – to present Scientific researcher: Yerevan Physics Institute, Theoretical Physics Department February 2010 – June 2010: Network and System Administrator, Technical Support for billing system customers “Zang Telecom” LLC Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server (FreeBSD based). Network containing amount 10 computers, mail server, NAT (hardware and sofware based realesation of NAT, Cisco routers and smart switchs), hardware and software support. March 2009 – February 2010 Network and system Administrator Georisk LTD and IGS NSA RA Monitoring corporate network (Windows Active Directory, company mail server, proxy server, DNS server, FreeBSD7.0 based proxy and DNS server ). Purchase hardware for company, do technical support for company employers. Network containing amount 80 computers, DNS, mail and Proxy servers, NAT, IT security, hardware and software support. FreeBSD 7.0 based gateway. 03.05.07 - 01.11.2007 Converse Bank CJSC Charentsavan branch as loan officer 01.12.06 - 01.05.2007 "AMC" LTD Administrator of the FreeBSD 4.0 based web hosting server (Appache) 15.05.2006-15.09.2006 “Ponte Solutions” LTD as physicist researcher (in the cool plasma physics area associated with plasma etching and plasma chemistry questions) 12.2004 - 06.2005 Network Administrator (on SuSE 9.1 Linux machine) at Aghayants ev. Word. LTD 2000-2001 Leading specialist at the Software Provision Department at Emergency Management Administration at Government of Republic of Armenia Language Armenian and Russian (fluent) English (technical) Computer experience: MS Windows 2000,XP,7,8 MS Office 2000/XP/2007, AS-Bank 3.0, MS Windows 2000, 2003, 2008, 2012 Servers (basics of Active Directory), MS Office XP/2003,2007 Linux (Red Hat 7.3, 8.0, 9.0, Redhat EL 4,5,6 Fedora Core 4-18 CentOS 5.x,6.x (advance), FreeBSD 4.5, 5.1, 6.0,7.0,7.2,7.3,8.0, Ubuntu/Debian), TCP/IP protocols, basics of programming with C++, (MS Visual Studio 6, 2005, 2008, Borland C++ Builder 6, C Builder X), knowledge of Linux/Unix servers (Squid, DNS, SSH servers, Apache, PostFix Sendmail, PF, Linux SHELL scripting, iptables, iproute2, tc, load balansing), wireless network, VoIP technlogicts and equipments, HPEM (Hybrid plasma equipment model), MCFP (Monte-Carlo feature profile model), PCMC (Plasma chemistry Monte-Carlo Simulation); Basic principles of CMOS designing. Scientific publications: 1 D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan and P. Sorba J.Phys. A: Math. Gen. 35 (2002) 2353-2359. 2 J. Ambjorn, D. Karakhanyan, M. Mirumyan and A. Sedrakyan Nucl. Phys. B 599 (2001) 547-560. 3. М. Мирумян "Модель Уймина-Лая-Сазерлэнда спина 3/2 в терминах фермионных операиоров рождения и уничтожения "Известия НАН Армении т.37, 4 (2002). 4. М. Мирумян «Фермионная модель Уймина-Лая-Сазерлэнда спина 1» Препринт ЕрФИ 1576(1) 2002. 5. D. Karakhanyan, R. Kirschner and M. Mirumyan Nucl.Phys. B636 (2002) 529-548; nlin.SI/0111032. 6. D. Arnaudon, D. Karakhanyan, M. Mirumyan, A. Sedrakyan, P. Sorba J.Phys. A35 (2002) 2353-2360.

    $16.67 /hr
    0 hours
    5.00
  9. Clayton K.

    Clayton K.

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

    China - 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
    3,355 hours
    4.85
  10. Muhammad Awais

    Muhammad Awais

    PHP|.NET|MVC|Jquery/bootstrap|DBA|SOLR|Redhat/CENTOS|Security Expert

    Pakistan - Tests: 2

    I am professional in PHP, .NET, MVC, DB and security.I have had experience in Web development (front & backend) more than 5 years, and if you want to create Web, desktop applications or db optimization, sql routine writing using PHP, .NET etc I'm the man you need. I can provide you from very small project to large scale projects and project management too. I have big collection of devices, to test the apps and this guarantee best quality of my job.

    $16.00 /hr
    0 hours
    0.00