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Red Hat Administration Upwork freelancers typically receive a client rating of 4.82.

Last updated: October 1, 2015

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Luis fernando A.

Luis fernando A.

Linux Sysadmin and AWS Architect with huge web hosting experience

Brazil - Tests: 5

I'm a creative and hardworking Linux System Administrator and Amazon Web Services Architect and developer. I've been supporting and delivering IT solutions especially for web hosting companies and its set of open source software (Apache, PHP, RoR, MySQL, HAproxy, iptables, OpenVPN and much more) since 2005. I've also worked at IBM managing a farm of more than 1000 Linux and AIX servers as well as its proprietary middleware (DB2, IHS, WebSphere and others).

100% Job Success
$50.00 /hr
45 hours

Anatoly Yuzefovich

Anatoly Yuzefovich Agency Contractor


Russia - Tests: 1

I'm skilled Nix-administrator and perl developer with 10-year old experience. Administration: Linux, FreeBSD. Services ftp(proftpd,vsftpd,pure-ftpd), http(apache,nginx,lighttpd),dns,email,mysql and other services. Networking: Cisco systems devices (routing & switching). Network architecture. NAS/SAN: IBM, HP, NetAPP and work with Blade Systems (IBM, HP) VmWare vSphere virtualization. Perl programming: Web-programming - DBIx, dancer, plack, templates, modern perl, mojolicious. JavaScript - extjs, jquery, node.js, angular.js

Associated with: Coderunes

$33.33 /hr
397 hours

Mihai-George Cornateanu

Mihai-George Cornateanu

Senior Linux System Engineer

United Kingdom - Tests: 12 - Portfolio: 1

Linux System Administrator. LAMP Administrator. Security expert - Senior Ethical Hacker. PCI Compliance expert. ✔ Apache ✔ PHP ✔ MySQL ✔ DNS ✔ FTP ✔ Samba ✔ Postfix / Qmail / Sendmail ✔ DomainKey / DKIM / SPF ✔ Courier / Dovecot (IMAP/POP) ✔ SpamAssassin / ClamAV Amavis ✔ Kernel Hardening & Securing ✔ IPTables ✔ Wordpress, Joomla, PHPBB, Drupal ✔ Bash scripting

100% Job Success
$30.00 /hr
186 hours

Panayotis Tsiamis

Panayotis Tsiamis

Senior Systems and Software Engineer

Greece - Tests: 7 - Portfolio: 14

Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.

$30.00 /hr
539 hours

Ionut Cadariu

Ionut Cadariu

Unix/Linux System Administrator


Perform routine maintenance (log monitoring, patches, upgrades, hardware monitoring, etc) * Ensure the functioning at peak performance, recommend and implement solutions to improve performance * Perform installation and troubleshooting of systems and/or applications, solving problems as to ensure application consist maintaining and patching the productive servers. Negotiating downtime and preparing the systems. * Maintenance and administration of post-installation configuration scripts

$10.00 /hr
0 hours

Alan Guan

Alan Guan

Technical/Network Analyst

United States - Tests: 3

Computer Science B.A. from the University of North Carolina - Chapel Hill. Young IT professional that has worked in the field for 3 years. Former occupations: Service Desk Analyst, Network Analyst I, Application Consultant, Technical Support Intern. Grew up in touch with technology and gadgets. Jack of all trades, incredibly fast adopter/learner. Currently building my personal profile by freelancing to hone in on my interests (right now looks to be design for mobile apps). Typing tests put me on average at 105 WPM. I work well under pressure, juggling multiple tasks on my plate and prioritizing those that need more attention. I can be a perfectionist at times and will take hours to utilize/read any resources I can to solve a problem. I very much enjoy and excel in helping people understand technology/computers. I would love to get into web design, mobile app design, UX in general. Thanks for reading and considering me for work. I assure you, you won't be disappointed.

$30.00 /hr
0 hours

Rodney Caston

Rodney Caston Agency Contractor

Systems Engineer

United States - Tests: 3

I have over fifteen years experience in linux systems administration and development, having managed large environments composed of many thousands of systems. I believe I bring with me a valuable perspective on how to provide solutions for efficiently managing extremely large, and distributed environments without scaling headcount. Some of my accomplishments include having built site reliability/network operations centers from the ground up, from the development of the fault and performance management systems to the management of the staff. I have built up and administered large scale email infrastructures which would send and receive millions of emails daily. I have managed datacenter migration projects consisting of thousands of servers running live services. I have extensive experience in the online gaming industry, focusing on adminsitration, server engineering, and DevOps. I have even worked in a creative capacity as a writer and creative designer in the past, having co-created the MegaTokyo™ intellectual properties. Given the variety of roles I've had in my career, I consider myself a jack-of-all-trades. What I enjoy most is being able to provide value to the organizations that I am able to support, regardless of what role that places me in at the time. Specialties: Amazon Web Services, Apache, Backtrack 5, Bind/DNS, Cacti, Chef, Cloud, Drupal, Elasticsearch, Ganglia, Glusterfs, HAProxy, Heartbeat, Kibana, LDirectord, Linux (Ubuntu, Debian, Redhat, CentOS, Kali), Logstash, Memcache, Metasploit, Monit, MongoDB, MRTG, Munin, MySQL Server, Nagios, Netcool, Nginx, Offensive Security, OpenVAS, OpenVPN, OSSEC, OSX, Penetration Testing, Postfix, PowerDNS, Puppet, Ruby, RRDTool, SAN, Samba, Sendmail, Shell Scripting, Splunk, Squid, Syslog, SMTP, SNMP, SSL, Squid, TCP/IP, VMWare, Windows, and Xen.

Associated with: Caston Consulting LLC

$91.11 /hr
1,634 hours

Dmitrijj Sergeevich Kashirin

Dmitrijj Sergeevich Kashirin

Java Developer with Linux experience

Russia - Tests: 4

I'm Java Developer with strong Linux experience. My strong skills is Data analysis, Linux, Java, SQL. Also I have skills in Continuous Integration and build and delivery operations. My development experience is 5 years on server-side, client and desktop applications. I believe my strong points are my accuracy 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 2012, I'm Java Developer in T-Systems company and developing client and server-side applications on Ubuntu and RedHat systems. Additionally I'm developing parsers, crawlers and scrappers for data-mining of different web-sites and documents. Thank you in advance for your time and consideration. I look forward to working with you soon. I have a Masters degree in Applied Mathematics and Physics from Saint-Petersburg State University, in the Russia. Listed below are my experience and skills. — Java Core: Java Core, Multithreading, Collections API; — Frameworks: Spring, JUnit, Mockito, Jsoup, Velocity, Play Framework; — Servers: Apache HTTP, Tomcat, JBoss; — Continuous Integration: Jenkins, Maven, Gradle, Ant; — Scala (Play framework) — Core web: XML, JSON, HTML/CSS, JavaScript; — IDE: Intellij Idea, Netbeans; — OS: RedHat Enterprise Linux, Ubuntu Linux, HP-UX, Windows; — VCS: Git, Mercurial, SVN; — Bug/Issue trackers: Jira, Bugzilla; — SQL;

81% Job Success
$20.00 /hr
169 hours

Bohdan Sydor

Bohdan Sydor

Experienced DevOps Engineer

Poland - Tests: 5

Red Hat Certified Architect, experienced Linux systems administrator (15 years) and backend developer. Areas of expertise: * Linux (Red Hat, CentOS, Ubuntu, Debian) * Public cloud (Amazon AWS, Linode, Digital Ocean, etc) * Private cloud (Openstack, KVM virtualization, LXC, docker) * Systems automation (Ansible, Puppet) * Monitoring (Graphite, Zabbix, Nagios) * Programming (Bash, Python) * Methodologies (Scrum, DevOps)

88% Job Success
$55.56 /hr
193 hours

Roman Gorshunov

Roman Gorshunov

UNIX/Linux Systems Administrator

Slovakia - Tests: 3

I'm just starting my career on oDesk, that is why price per hour is so low. === Be the first to hire me! === What I would like to do as a freelancer at oDesk: - Provide Operating systems environment support for Application/DB services teams - Automate routine tasks - machines should work, people should think - Reviewed and implemented High/Low level designs - Package Applications with RPM and automated OS installation/setup Projects I have been participating in which am I proud of: - Completed design and deployed four high availability clusters for Oracle databases and applications on Red Hat Enterprise Linux; wrote work instructions and trained services support specialists - Completed design and implementation for IBM AIX cluster based on p740, AIX 6.1 and PowerHA - Run a storage migration project, migrated Terabytes of data from old to the new Storage system without applications downtime

$14.44 /hr
8 hours