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, 148 CentOS projects are completed every quarter on Upwork.

148

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: May 1, 2015
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  1. Phillip Stephen

    Phillip Stephen

    Expert Systems Engineer/Architect

    United States - Last active: 18 days 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
  2. Ivan Ivanov

    Ivan Ivanov

    Linux System and Network Administrator

    Bulgaria - Last active: 7 days ago - Tests: 2

    I have 14 years of experience in Linux Administration (Debian and Centos Operating systems) I have strong experience in  installing, configuring and troubleshooting Linux operating system. Here are few of my skills summary. • In-depth knowledge of Debian, Centos operating system functionality. • Experience in Server architectures like NFS, NTP, SSH, SQUID, SAMBA, DHCP • Experience in User Management, Routing, Linux Network, LVM, Partitions, Raid, and Quota. • Strong Experience of IPTABLES, Perl,Apache, Nginx, postfix, Sphinx, Elasticsearch, Network Administration etc. • Good Knowledge of Linux commands, Administration and Shell Scripting, Mysql • Experience in handling a production environment in data-centre. • Strong Troubleshooting, Problem solving skills.

    $33.33 /hr
    3 hours
    0.00
  3. 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
  4. Peter Green

    Peter Green

    Infrastructure Architect/Engineer/System Administrator

    United Kingdom - Last active: 07/04/2014 - Tests: 3

    I have almost a decade of experience working in the industry and gained much experience working with both large corporate clients and small start-up organisations. This exposed me to working with a range of environments; delivering scalable, resilient platforms for high-traffic sites using Amazon Web Services and collaboration platforms hosted on a client’s own infrastructure. Having worked with a wide variety of technologies and clients helps me in analysing a client’s situation and suggesting platforms or solutions to suggest, or being able to work with a pre-existing environment. When I started my career, my focus was traditional system administration; assisting in managing a corporate network, building servers and dealing with support. However, I soon developed a passion for building and maintaining server environments, which lead me to begin learning and adopting processes, tools and work flows to automate build processes and environment management. This includes working closely with software developers to implement workflows that allow for smooth, automated, releases of code and the rapid deployment of development environments. These practices have been codified by the term “DevOps” and it addresses a lot of the problems traditionally associated with software development and deployment.

    $55.56 /hr
    0 hours
    0.00
  5. 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
  6. Anderson Guzman

    Anderson Guzman

    Senior Unix, Linux and Windows Administrator and Developer

    Venezuela - Last active: 12/07/2014

    Specialist in solutions using: Unix, Linux, and Windows. With experience in the following areas (among others): Web Development, Design (2D and 3D), Multimedia, IT Infrastructure, Virtualization, VoIP, High Performance Servers, IT Security, Programming custom applications, Cloud Services, SaaS. Including the most important branches of industry, from routine Administration Servers, security audits and updates to attack mitigation, application and server hardening and others. Collaborator of the following projects: Wine ( http://www.winehq.org ) and FreeBSD ( http://www.freebsd.org). Languages: Spanish and English. Always willing to listen: new opportunities and challenges.

    $70.00 /hr
    0 hours
    0.00
  7. Dan Vaida

    Dan Vaida

    senior sys admin looking for new challenges

    Germany - Last active: 10/05/2013

    Working as a full-time system administrator with an extensive experience of over 5+ years in high-availability-24x7-medium-large environments. Disaster recovery, state of the art security (PCI-DSS), top-notch database clusters, large deployments scalable both horizontal and vertical. Passion driven individual with strong IT educational background (college + university) looking for new challenges.

    $38.89 /hr
    0 hours
    0.00
  8. Thomas Pickard

    Thomas Pickard

    Electrical Engineer

    United States - Last active: 3 months ago - Tests: 7

    Hi! I'm an dually degreed electrical engineer but also have very substantial software engineering experience. I'll start with the latter since it is probably more conducive to online work. I am highly proficient in C++, C and Python; as for coding categories, I'm proficient with TCP/UDP/IP, serial (asynchronous and synchronous), USB, bit-bang methods, direct memory access, board bring-up and cross-compilation / non-x86 platforms (specifically ARM and PIC). Further, I'm a Linux enthusiast and have 12+ years using Linux in desktop, server and embedded applications. I have in depth knowledge of U-Boot, RedBoot, Grub, Lilo, Bash, the Linux Kernel, Wireshark, tcpdump, netcat and all the other standard open-source Linux utilities. I'm comfortable with Ubunutu/Debian, RHEL and its associated clones, Slackware and custom Linux builds (creating custom Linux builds is also a skill). As far as electrical and computer engineering, I have a strong background in COTS integration, antennas, satellite design, autonomous sensor design and integration, board schematic and layout, parts selection, satellite communications, VSATs, and various other EE/CPE concepts.

    $34.44 /hr
    0 hours
    0.00
  9. Joel L.

    Joel L.

    IT Consultant

    United States - Last active: 12/01/2014 - Tests: 4

    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
    0 hours
    0.00
  10. Fedor Voroshilin

    Fedor Voroshilin

    Senior System Administrator

    Ukraine - Last active: 07/01/2014

    - Experienced in management of IT-department from the ground up, budgeting, opening of remote branches, warehouses, stores, and industries. - Experienced in writing job descriptions, wide concept of IT, provision of infrastructure as a whole, management control experience. - Experienced in project management/implementation/ operation & maintenance in accounting systems, CRM. - Experienced in implementation of analog and digital communication. - Educational experience. - Strong background in system administration.

    $55.56 /hr
    0 hours
    0.00