Network Administrators & Consultants

Showing 8,286 freelancers

Network Administrators & Consultants

Showing 8,286 freelancers

  • Ruby on Rails Developer and Consultant

    I'm seeking opportunities to build high-quality dynamic web solutions in Ruby on Rails. I've got a solid programming background with over 15 years experience. I'm a self-organized, disciplined and quality-oriented performer with good team management skills. A … more

    I'm seeking opportunities to build high-quality dynamic web solutions in Ruby on Rails. I've got a solid programming background with over 15 years experience. I'm a self-organized, disciplined and quality-oriented performer with good team management skills. A list of skills/features follows. * Passion for programming. * 15+ years overall development experience in 10+ languages. * 10+ years team leadership experience. * 10+ years Unix admin and TCP/IP networking experience. * 7+ years Ruby experience. * 5+ years Ruby on Rails experience. * Contributing to Ruby/Rails open source community (https://github.com/dadooda). * Clean, distinct, well-documented and reusable code is a *MUST*. * Solid understanding and everyday use of TDD (RSpec). * Strong JavaScript: raw language, jQuery, frameworks. * Everyday Git usage. * Practical programmer’s knowledge of HTML/CSS. * Hands-on experience of building high-traffic web applications in Unix environment (nginx, memcached, SQL server tuning, load testing tools, etc.). * 10+ years LAMP experience.  less

    ruby-on-rails unix-shell ruby tcp-ip amazon-web-services php javascript jquery css mysql linux-system-administration apache-administration nginx security vpn amazon-s3 amazon-ec2 firewalls postgresql c++ centos coffeescript 00 more less
    • $33.00 HOURLY RATE
    • 4.6
    • 2366 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 9 TESTS
  • IT Specialist

    Over last 12 years, based on my deep knowledge in software development and Windows operating systems, I've managed to become an expert in two fields: desktop applications development and windows based installers. Based on my achieved skills, I have … more

    Over last 12 years, based on my deep knowledge in software development and Windows operating systems, I've managed to become an expert in two fields: desktop applications development and windows based installers. Based on my achieved skills, I have developed a wide range of installers, from simple ones to more complexes such as installers for web applications. For desktop application development, I use Delphi which I used from Delphi 5 up to Delphi XE2; I have deep knowledge in building installers for windows, with great knowledge using Inno Setup, Windows Installer XML (WiX), InstallShield, Advanced Installer, Wise Installation Studio. I also have great experience in the following areas: SQL, HTML, PHP, software design and testing.  less

    delphi inno-setup wix installshield installer-development database-programming windows-administration c# 00 more less
    • $29.00 HOURLY RATE
    • 4.4
    • 583 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • WordPress Speed Optimization Wiz. I don't just Optimize, I Re-Energize

    Don't you feel frustrated when your favorite website takes too much time to load ! Well, your customers/clients feel the same when your website takes too much time to load. Fast site load speed is also an important factor … more

    Don't you feel frustrated when your favorite website takes too much time to load ! Well, your customers/clients feel the same when your website takes too much time to load. Fast site load speed is also an important factor behind securing high rank on Google SERP and I specialize in speeding up WordPress websites. It doesn't matters to me whether your site is hosted on cheap hosting servers or powerful dedicated servers. Over the last 10 years, I have developed a wide range of websites using WordPress / WordPress MU and WordPress Multisite. My core competency lies in complete WordPress Site Speed Optimization, Google Authorship, Google Webmaster Tools and Social Profile Management. I love WordPress and I love to make WordPress Super Fast on cheap hosting to dedicated servers. Know more about me and also understand the quality of my work by visiting www.markdescande.com  less

    wordpress google-plus website-development domain-migration cpanel whm seo mysql phpmyadmin firewalls 00 more less
    • $40.00 HOURLY RATE
    • 4.9
    • 1025 HOURS
    • SOUTH AFRICA
    • LAST ACTIVE
    • 127 PORTFOLIO ITEMS
    • 5 TESTS
  • Develop wesites with PHP/MySQL/AJAX

    I have developed many websites for four years that used PHP, HTML, JS, CSS, XML, MySQL, XML-RPC. I familiar develop following some open source frameworks as Joomla, Cakephp, Wordpress. Strong skills at: - Wordpress - Joomla - Cakephp - Mysql - HTML5, CSS3 - jQuery Mobile - PSD to HTML\CSS\JS

    php wordpress cakephp joomla mysql css html5 html css3 c# linux-system-administration javascript jquery jquery-mobile apache-administration 00 more less
    • $13.33 HOURLY RATE
    • 5.0
    • 816 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 2 TESTS
  • Network & Linux Systems Engineer

    Network Engineering position that capitalizes on expertise in CISCO Routers/Switches & ASA Firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu), Windows 2000/2003 platform. Dedicated to pursue further challenges in the field of Networking Engineering wherein my skills … more

    Network Engineering position that capitalizes on expertise in CISCO Routers/Switches & ASA Firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu), Windows 2000/2003 platform. Dedicated to pursue further challenges in the field of Networking Engineering wherein my skills and knowledge will be highly developed and utilized. Maintain focus on achieving end-results while demonstrating strategic problem solving skills and ability to follow through with multi-tasking job. Can work with any new challenges especially in the Networking field with minimum instructions. I am also experienced with other vendor swithces such as 3Com, LinkSys, Prolink etc. Firewalls from other vendors such as NetScreen, Fortigate 1000FA2, SonicWall, Monowall...Confident in HTML troubleshooting, Mail Server in Linux Platform, Perl/PHP, MySQL, SQUID, DHCP/DNS Servers in Linux..  less

    ssl smtp tcp-ip cisco-routers cisco-asa zimbra-administration linux-system-administration network-security centos 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 23 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 6 TESTS
  • Expert Linux administrator, Devops

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD and Windows Server - proficient Cloud services: AWS, Rackspace SCM: Puppet, Ansible Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql … more

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD and Windows Server - proficient Cloud services: AWS, Rackspace SCM: Puppet, Ansible Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Atlassian: Jira, Confluence, Crowd, etc - the whole suite Monitoring: Nagios, Groundwork, Zabbix, Monit, Munin, Cacti Virtualization: Openvz, Vmware esxi/server, Proxmox Mail servers: Zimbra, Exim, Sendmail, Dovecot Backups: Bacula High availability: Corosync/Pacemaker, DRBD Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding).  less

    openvz apache-administration nginx atlassian-jira mysql bash lamp-administration linux-system-administration postgresql virtualization amazon-web-services amazon-ec2 amazon-s3 nagios exim mail-server-implementation centos iptables haproxy bash-shell-scripting zimbra-administration atlassian-confluence 00 more less
    • $77.78 HOURLY RATE
    • 4.9
    • 1862 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Computer Systems & Network Engineer CCNA|MCSA|MCITP|OCP|ITIL|VMWARE

    I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008 … more

    I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008),2012 different vendors Internet management and security solutions ( Hardware and software) like Air Live 802.11G Internet Access Server, Sonicwall,WatchGuard , ISA 2006 server, GFI Web Monitor, HP Servers, Client and server OS. Other than professional experience I have done Worked in following virtualization software's VMware ESXi 5.0-5.5 Microsoft Hyper-V, Sun/Oracle Virtual Box. Other than professional experience I have done different International Certifications CCNA. MCITP Windows7 Enterprise MCSA Windows 7 MCTS. | Windows 7 MCTS. | Windows 8 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange Server 2010 OCP( Oracle Sun Solaris OS 10 System Administrator) ITIL Foundation. VTSP 5 I have successfully completed following projects, that were for IT Govt Sector and five star Hotel's Planning Designing and Establishing Network Infrastructure using Microsoft Operational Framework (MOF v 4.0),network consisted of 200+ clients and 20 + servers (HP Proliant ML-150, ML-350,Dell Power Edge 2900). Installation configuration and management of ISA Server 2006,Juniper SSG 5 working together, providing security solution for more than 100 static and 200+ dynamic clients. Automate the process for Management of Internet User Account for the users by Implementation of RADIUS Server In-house developed Software Application Up gradation of clients systems from Windows XP to Windows 7 . Up gradation of domain from Server 2003 to server 2008 Enterprise R2 .  less

    microsoft-hyper-v-server windows-administration vpn security vmware-esx windows-7-administration asterisk voip-administration amazon-ec2 elastix 00 more less
    • $33.33 HOURLY RATE
    • 4.9
    • 319 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 13 TESTS
  • Software Developer/Database Administrator/Network Administrator (MCSE)

    I aim to provide advice on, develop, implement, and maintain Windows-based systems (including server applications like Microsoft Exchange, Microsoft SQL Server, and SharePoint), Linux desktops and services, SQL server and access databases and applications, Web and desktop applications based on … more

    I aim to provide advice on, develop, implement, and maintain Windows-based systems (including server applications like Microsoft Exchange, Microsoft SQL Server, and SharePoint), Linux desktops and services, SQL server and access databases and applications, Web and desktop applications based on Visual Basic .NET, ASP/ASP.Net, PHP, VBScript, and JavaScript. With my extensive experience in Microsoft Office automation and Windows scripting, I can develop solutions and utilities to help enhance productivity on Windows desktops, servers, and networks. I have suceessfully developed and implemented applications and solutions using: * HTML web development, ASP/ADO.Net web programming, JavaScript programming, including Web-dased database access and querying applications. * Linux, Apache, PHP, MySQL experience. * Customized Content Management Systems (CMS) with PHP and MySQL. * Network and remote backup solutions based on Symantec BackupExec and Acronis. * Custom-built SMS texting/alerting applications. * Microsoft Exchange. * Microsoft SQL Server. * VMware server virtualization. * Citrix-based application distribution (currently evaluating VMware's new ThinApp solution for the same). * Microsoft Visual Studio.  less

    virtualization php mysql vba database-management database-programming .net-framework network-administration powershell 00 more less
    • $38.89 HOURLY RATE
    • 4.5
    • 2736 HOURS
    • UNITED KINGDOM
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 8 TESTS
    GROUPS:
  • PhoneGap | Sencha | Android | iOS | Yii | PHP | MySQL | CodeIgniter

    If your business needs supports of cross-platform (PhoneGap/Cordova) based (Android/iOS/Windows Phone) mobile application solution then don't hesitate to knock me over oDesk. Over the last 3 years I'm a full time PhoneGap/Cordova developer with … more

    If your business needs supports of cross-platform (PhoneGap/Cordova) based (Android/iOS/Windows Phone) mobile application solution then don't hesitate to knock me over oDesk. Over the last 3 years I'm a full time PhoneGap/Cordova developer with tremendous UI/UX designing experience with using Sencha Touch HTML5 UI framework. I'm developing Android native apps and PhoneGap Plugins (particularly for Android) as well. Along side of developing PhoneGap and Android apps , I'm also a Backend developer for particularly API (JSON based RESTful, SOAP) with using PHP, MySQL technology - I've build RESTbulk lib to write API faster and secure than ever. Beside of all those things I've experience in CodeIgniter, Yii Framework, HTML5, CSS3, Objective based JavaScript, JQuery, AngularJS to hooking full AJAX based web APPS and business based Web Apps. For more experiencing me , regarding how kind of PhoneGap/Android apps I've designed and developed - please feel free to review my work history and portfolios. ***Exclusive skill in oDesk platform*** Solution of PhoneGap Android plugins yet: #Google InApp purchase/Billing plugin #Google Cloud Messaging GCM push notification plugin with PHP backend support #Google Play InApp rating plugin #Google Native map in HTML5 App *** (exclusive) #Facebook + Twitter intgration #ToastText+Native loading spinner plugin #Window orientation plugin #Secured window plugin My portfolios showing how kind of stuffs I developed in past projects and history showing how clients saying about me. Ready to show myself and you should ready to utilize me :) Thanks for read me  less

    phonegap sencha android-app-development php ios-development windows-phone-7-development html5 css3 ajax rest xml-web-services extjs xhtml jquery-mobile mysql codeigniter gps-development java google-maps-api paypal-integration twitter-api facebook-api xml eclipse microsoft-visual-studio 00 more less
    • $20.00 HOURLY RATE
    • 4.7
    • 733 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 5 TESTS
  • Senior Delphi Developer

    Developer of desktop applications, and web applications, Delphi developer since 2001. PHP developer since 2005. Delphi XE5, XE4, XE3, XE2, XE, 2010, 2007, 7, 5, 4,3 FireMonkey, TMS, MyDac, Devexpress, Devart MSSQL, Access, FireBird, MySql, Firebird, MS SQLServer, Javascript … more

    Developer of desktop applications, and web applications, Delphi developer since 2001. PHP developer since 2005. Delphi XE5, XE4, XE3, XE2, XE, 2010, 2007, 7, 5, 4,3 FireMonkey, TMS, MyDac, Devexpress, Devart MSSQL, Access, FireBird, MySql, Firebird, MS SQLServer, Javascript,HTML5, Jquery, Wordpress, Joomla. Photoshop, Fireworks, Flash, ActionScript, iOS Android Firemonkey Delphi XE5 CISCO CCNA Certification(knowledge networks (Administration, solution ...) )  less

    delphi php mysql html css javascript wordpress codeigniter zend-framework ajax jquery html5 00 more less
    • $25.56 HOURLY RATE
    • 5.0
    • 419 HOURS
    • ALGERIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 6 TESTS
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