Linux System Administration Freelancers

Showing 4,855 freelancers

Linux System Administration Freelancers

Showing 4,855 freelancers

  • I get stuff done and I'm smart.

    For over 10 years, my phone has been the one that rang when something broke or a technical problem needed an immediate solution. Now I've settled in a peaceful valley in Tennessee to regain time I lost with my … more

    For over 10 years, my phone has been the one that rang when something broke or a technical problem needed an immediate solution. Now I've settled in a peaceful valley in Tennessee to regain time I lost with my wife and children. I've been called an Analyst, Server Administrator, Network Engineer, and Director during my career but my core competency is making server software, network devices, and technology work. (This is why I call my consultancy Systemworx) I have configured and fixed Juniper and Cisco firewalls and routers. I have built and rebuilt all manner of Windows Servers I have monitored and maintained thousands of network devices and a CRM webportal that served thousands of users across the US I have wrangled data for financial systems, CRMs, and data warehousing I have implemented mail delivery I appreciate your consideration.  less

    linux-system-administration windows-administration network-administration amazon-ec2 cisco-routers cisco-ios vpn computer-networking openvpn email-deliverability-consulting crm cpanel smtp mail-server-implementation firewalls apache-administration wordpress 00 more less
    • $55.56 HOURLY RATE
    • 4.9
    • 2182 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 6 TESTS
  • Software developer / integrator for open platforms

    Developer and integrator of web, desktop and system software components based on free and open-source software, unix-like systems and open platforms. Usually known as Mike Kazantsev on the web. I'm an everyday user and passionate developer and contributor of … more

    Developer and integrator of web, desktop and system software components based on free and open-source software, unix-like systems and open platforms. Usually known as Mike Kazantsev on the web. I'm an everyday user and passionate developer and contributor of free software, with pretty much whole career spent in this field. Past work includes building and supporting a local web portals from ground-up, managing, scaling and maintaining an infrastructure for large web portals (20k+ pageviews/min), mail systems, hosting platforms, and other services with lots of both public-facing and system-level components. When not on the job, I work at my own open-source software projects (see homepage and github), help maintain a linux distributions, participate in future technology discussions and tinker with web, microcontrollers, new programming languages/techniques. I have a lot of experience with high-level scripting languages, of which I heavily prefer Python, but also worked extensively with JavaScript, PHP, Perl, Lua and many others. Good understanding of database technology, including advanced SQL (PostgreSQL and a bit of Oracle, worked with billing group in a major TelCo), underlying operation and performance implications, some real-world replication and scaling experience. Worked with C on many occasions, but moslty on a smaller projects like optimization and glue modules, tools, simple real-time software (for linux-rt and microcontrollers), fixes, features and patches for larger projects, but never wrote large project in C from ground-up. Almost no C++ experience. Have solid understanding of underlying hardware (incl. current rack server platforms) and some knowledge and experience of assembly programming. Lots of past work with networks (but not much w/ specialized hw) and web.  less

    systems-development network-administration linux-system-administration python socket-programming mail-server-implementation website-development javascript coffeescript c html5 amqp github postgresql django-framework flask xmpp 00 more less
    • $13.33 HOURLY RATE
    • 5.0
    • 437 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • PHP Framework Application Developer: PHP/MySQL (LAMP), Ajax, HTML, CSS

    Web interfaces and software/framework development. Technologies + PHP - custom CMS programming + Framework - application development + MySQL + JavaScript + AJAX + jQuery + Mootools + HTML/xHTML + HTML5 + CSS + CSS3 + XML + MVC + SVN + SEO + *nix (GNU/Linux, Unix) like operating systems + Apache/PHP/MySQL

    php zend-framework codeigniter javascript ajax jquery xml html css seo microsoft-visual-basic socket-programming e-health mysql linux-system-administration apache-administration ffmpeg git github russian 00 more less
    • $26.67 HOURLY RATE
    • 5.0
    • 3404 HOURS
    • ARMENIA
    • LAST ACTIVE
    • 32 PORTFOLIO ITEMS
    • 7 TESTS
  • Ruby on Rails Developer

    I'm a Ruby programmer and a web developer with 5 years of experience. I've been working with Ruby on Rails for 3 years in several projects. I have been working on several Spree Commerce projects, i know Spree … more

    I'm a Ruby programmer and a web developer with 5 years of experience. I've been working with Ruby on Rails for 3 years in several projects. I have been working on several Spree Commerce projects, i know Spree theming, checkout process, import/export of data and products from external sources. My main skills: - Design patterns, OO principles - Ruby 1.8 and 1.9 - Knowledge of Rails (versions from 2 to 3.1) - TDD/BDD using RSpec, Cucumber and Test::Unit - AJAX, jQuery and advanced Javascript techniques - Semantic and W3C valid HTML and CSS - Experience with MySQL, PostgreSQL and some NoSQL databases - I use Unix with its full stack on daily basis - Good knowledge of Git and Github I am looking for creating good, long-term relations with my clients.  less

    java j2ee javascript jquery ruby ajax css cucumber rspec mac-os-app-development ruby-on-rails mysql html xhtml html5 css3 linux-system-administration 00 more less
    • $38.89 HOURLY RATE
    • 4.6
    • 501 HOURS
    • POLAND
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 7 TESTS
    GROUPS:
  • ✔ Linux System Administrator

    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 … more

    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  less

    network-administration seo tcp-ip windows-xp-administration unix-system-administration ecommerce-consulting virus-removal apache-administration lamp-administration security penetration-testing linux-system-administration redhat-administration mail-server-implementation irc-server-administration nagios munin 00 more less
    • $27.78 HOURLY RATE
    • 4.8
    • 183 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 14 TESTS
  • Qualified Web Design / Developer, Database Design / Admin, Data Entry

    Currently I am a semester 5th student, taking Information Technology as my major path-way university.. Yet im still in university, i have developed my own profitable company business, gain plenty of clients on web-developing, as well as lots of experiences … more

    Currently I am a semester 5th student, taking Information Technology as my major path-way university.. Yet im still in university, i have developed my own profitable company business, gain plenty of clients on web-developing, as well as lots of experiences in handling database / data mining here through odesk. Over the past 4 years, I have developed lots of websites for educational / commercial purpose. some of my highlight projects were: www.sosbrandmedia.com (My Web Development Company) / Portfolio as well. www.sosforwarder.com (My Company Page Wordpress) www.loantechs.com >> Wordpress (Odesk Jobs) www.montanasonic.com >> Wordpress (Odesk Jobs) www.butikimport.com >> OPENCART ECommerce www.dondiwestlaw.com >> Wordpress (Odesk Jobs) www.tripledfitness.com >> Wordpress (Odesk Jobs) kuiki-sg.cloudns.org/kevin/ >> BOOTSTRAP Framework (odesk Jobs) www.designbyketi.com >> Wordpress (Odesk Jobs) Im seeking for a new opportunities to works with the outsiders through out Odesk, so that i'll gain a new experiences in my life. Cheers :) Best Greetings From Indonesia  less

    web-design web-content-management website-development twitter-bootstrap wordpress opencart mac-os-app-development database-design data-analysis database-administration database-programming data-warehousing internet-research business-development linux-system-administration sap-erp java banner-design logo-design 00 more less
    • $5.56 HOURLY RATE
    • 4.9
    • 266 HOURS
    • INDONESIA
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 5 TESTS
    GROUPS:
  • Developer

    Since I remember I loved a web development. As a 10 years old kid I started learning HTML and I created my first simple website. After a short time, I extended my knowledge with javascript, css and php, to create … more

    Since I remember I loved a web development. As a 10 years old kid I started learning HTML and I created my first simple website. After a short time, I extended my knowledge with javascript, css and php, to create more advanced pages. In high school I started creating small games in flash and action script. When I was about 16, I started learning java and C++ for creating more complex games and application. Now I am well experienced web developer. I use a wide range of technologies like PHP, javascript (preferable coffescript compiling to js), ajax, ruby, java, and of course frameworks for them (last time I loved java Play framework for web developing). I am also a passionate about android development.  less

    php java jquery html ajax c++ mysql css git cakephp asp.net-mvc oop android-app-development linux-system-administration ubuntu google-maps-api eclipse 00 more less
    • $30.00 HOURLY RATE
    • 4.9
    • 951 HOURS
    • POLAND
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • Software Craftsman

    I am a full-stack software engineer with my field of expertise lying mostly in building rich web apps with straight architecture (loosely coupled client and server communicating via RESTful api or rpc), cutting edge front-end techniques (CoffeeScript, MVC, CommonJS and … more

    I am a full-stack software engineer with my field of expertise lying mostly in building rich web apps with straight architecture (loosely coupled client and server communicating via RESTful api or rpc), cutting edge front-end techniques (CoffeeScript, MVC, CommonJS and AMD modules, CSS preprocessing, client-side templating, asset packaging) and appropriate back-end technology (mighty and conventional Django or lean and trendy NodeJS). I'm also very interested in functional programming and have basic expertise in haskell and erlang.  less

    coffeescript node.js javascript html5 css3 backbone-js rest python django-framework comet vim unix-shell linux-system-administration redis postgresql mongodb haskell erlang 00 more less
    • $33.33 HOURLY RATE
    • 4.6
    • 699 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 1 TEST
    GROUPS:
  • Experienced Programmer

    8 years experience programming for web applications to build meet requirements, cross-browser, good-looking, maintainable, scalable web applications. Key skill set: - Django / Python - Rails / Ruby - jQuery / Javascript - Twitter Bootstrap / Css - HTML5 - PostgreSQL / MySQL / Nosql - Unix-like OS (Mac OS X & Ubuntu & Fedora … more

    8 years experience programming for web applications to build meet requirements, cross-browser, good-looking, maintainable, scalable web applications. Key skill set: - Django / Python - Rails / Ruby - jQuery / Javascript - Twitter Bootstrap / Css - HTML5 - PostgreSQL / MySQL / Nosql - Unix-like OS (Mac OS X & Ubuntu & Fedora & CentOS) / Bash - Apache / Nginx - Git / Svn Other related skills: - Programming language: Hashkell, Racket, SML(NJ), C, Java, x86 Assembly - Mobile development: Android Apps - Web services: Google Map / Twitter / Facebook APIs And great english skills with strong new tech learning ability.  less

    python ruby ruby-on-rails django-framework javascript css html5 jquery css3 linux-system-administration git apache-administration haskell ajax postgresql mysql c 00 more less
    • $23.32 HOURLY RATE
    • 5.0
    • 975 HOURS
    • CHINA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • Software Engineer

    Shipping systems integrated with accounting systems and reporting using PHP / MySQL and Javascript Telecommunication solutions -Dynamic call flow generator tool; (Yii framework / MySQL / jsTree) -Outbound dialer software on IVR platform; (PHP / MySQL) -Bypass switch application; (HTML / PHP) -Automatic device configuration … more

    Shipping systems integrated with accounting systems and reporting using PHP / MySQL and Javascript Telecommunication solutions -Dynamic call flow generator tool; (Yii framework / MySQL / jsTree) -Outbound dialer software on IVR platform; (PHP / MySQL) -Bypass switch application; (HTML / PHP) -Automatic device configuration; (Yii framework / MySQL / Java) -Call Detail Records Achiever-design and development (Yii framework / MySQL) Mobile applications -Advertisements serving solution; (CodeIgniter / MongoDB)  less

    php mysql yii-framework mongodb codeigniter linux-system-administration google-maps-api css javascript html cisco-routers ssh ftp jquery cakephp kohana postgresql 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 10 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
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