Network administrator Freelancers

Showing 493 freelancers

Network administrator Freelancers

Showing 493 freelancers

  • Senior UNIX & Linux Systems Engineer

    Specialties: Architect, DevOps, Performance, Scalability, Redundancy / Fault Tolerance, High Availability, Network Security, Troubleshooting, FreeBSD, Linux (RHEL, CentOS, Ubuntu, Debian, SUSE), Relayd, Nginx, Apache, PostgreSQL, MySQL, Redis, Memcached, ZFS, Postfix, Dovecot, Asterisk, OpenBGPd, OpenOSPFd, GIT, Jenkins, iptables, OpenBSD PF, IPFW, Nagios … more

    Specialties: Architect, DevOps, Performance, Scalability, Redundancy / Fault Tolerance, High Availability, Network Security, Troubleshooting, FreeBSD, Linux (RHEL, CentOS, Ubuntu, Debian, SUSE), Relayd, Nginx, Apache, PostgreSQL, MySQL, Redis, Memcached, ZFS, Postfix, Dovecot, Asterisk, OpenBGPd, OpenOSPFd, GIT, Jenkins, iptables, OpenBSD PF, IPFW, Nagios, PHP, Ruby, Java, Python, Perl, ... Started out with a Sinclair ZX-Spectrum. Over 10 years of experience in IT area, including 6 years in Senior System Administrator. positions. Expert in Unix-based systems (5 years), advanced person in database administration (3 years). Person with strong analytical and troubleshooting skills, strong team building skills, well developed management skills, interpersonal skills.  less

    network-administration unix-system-administration freebsd linux-system-administration mysql postgresql nginx apache-administration devops virtualization 00 more less
    • $17.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 5 TESTS
  • HTML5/CSS3/LESS, WordPress, PHP, Javascript/jQuery,Twitter Bootstrap.

    I`m a developer from Ukraine. Reasons to hire me: I am very responsible and accurate. I am available at least 14 hours of daytime. I am sociable and I am always available on Skype. I am looking for long-term … more

    I`m a developer from Ukraine. Reasons to hire me: I am very responsible and accurate. I am available at least 14 hours of daytime. I am sociable and I am always available on Skype. I am looking for long-term business relationships with customers. I have good experience and expertise in the following technologies: - HTML5, XHTML, XML, CSS2.0, CSS3.0, LESS - PHP, Javascript/jQuery/Ajax - C#/.NET, Win Forms, WPF, WCF, ASP.NET, ADO.NET - Twitter Bootstrap, Responsive Design - WORDPRESS - MS SQL, MySQL  less

    html javascript css wordpress russian network-administration c++ c# psd-to-html xhtml jquery 00 more less
    • $16.67 HOURLY RATE
    • 4.9
    • 260 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 9 TESTS
  • Web Developer / Wordpress Plugin and Theme Developer

    Graduated at "University St. Kiril and Metodij" in Skopje, Macedonia at Electrical Engineering faculty, major telecommunications. Over the years in my high school and university days I was developing all kind of web sites using different CMS-es and creating my … more

    Graduated at "University St. Kiril and Metodij" in Skopje, Macedonia at Electrical Engineering faculty, major telecommunications. Over the years in my high school and university days I was developing all kind of web sites using different CMS-es and creating my own pages. I have more than 4 years experience with developing and designing web sites. Beside web design and developing, I am a network administrator with almost 2 years experience in the filed. Coding was my interest since I was a kid, so networking was another filed where I can show my skills. A part of all the coding, I always needed some creative and artistic filed to try myself. I started photography 4 years ago as a hobby. Since than I won few national photography competitions, participated in international exhibitions. The photography thing, gave me a sense for aesthetics and creativity, which I always use when I am coding or if I need do design something. Beside my graduation I had some courses that I have took while studying which helped me to provide the skills I own now. My skills are: • Web Developing (attended Web Design course for HTML, CSS, PHP and Adobe Photoshop) - PHP /MySQL  - Jquery/Javascript - Wordpress - HTML 5 - CSS 3.0 • Network & Server administration (attended Cisco Certificate Network Associate) - Cisco network configuration - Huawei network configuration - Mikrotik network configuration - VoIP - Asterisk/Elastix/FreePBX configuration - Microsoft Server configuration • Tools that I am good with: - Wordpress - Joomla - Adobe Photoshop/Illustrator/Lightroom/Dreamweaver/After Effects - NetBeans - MS Office (Word, Excel, PowerPoint, Visio) - Asterisk/Elastix/FreePBX  less

    website-development wordpress jquery ajax html5 mysql php css3 javascript adobe-photoshop adobe-illustrator web-design network-administration computer-networking 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 474 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 2 TESTS
  • Microsoft Access database developer and PHP/ MSQL developer

    One of the most crucial elements of service to a Client is in being able to understand implicit needs beyond the surface of the stated needs. I want to exceed what the Client even believes that he or she needs … more

    One of the most crucial elements of service to a Client is in being able to understand implicit needs beyond the surface of the stated needs. I want to exceed what the Client even believes that he or she needs, and to deliver a quality product that is created efficiently. More than 7 years of experience, i have developed a wide range of Ms Access databases from legacy to Current. Speed, quality and creativity are my words I seek to provide development skills that consistently challenge the standard and appeal to the eye to achieve any goal desired by a Client Thank you Patrick  less

    microsoft-access vba sql database-design database-programming database-adminstration mysql php web-design data-entry microsoft-excel adobe-dreamweaver network-administration 00 more less
    • $11.11 HOURLY RATE
    • 4.2
    • 438 HOURS
    • UGANDA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • DevOps/Unix sysadmin

    I have experience in * Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu) * Unix maintance/troubleshooting (Solaris, FreeBSD) * Virtualization: (Vmware, Openvz, Solaris Zones) * Cloud hosting (Amazon EC2) * Networking (dhcp, DNS:powerdns/bind/named, pptp, iptables, proxies) * Web servers (apache, nginx, lighttpd, tomcat … more

    I have experience in * Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu) * Unix maintance/troubleshooting (Solaris, FreeBSD) * Virtualization: (Vmware, Openvz, Solaris Zones) * Cloud hosting (Amazon EC2) * Networking (dhcp, DNS:powerdns/bind/named, pptp, iptables, proxies) * Web servers (apache, nginx, lighttpd, tomcat) * Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot) * Automation (puppet, shell scripting) * Monitoring (nagios, zabbix, monit) * Hosting panels (Cpanel/WHM, Plesk, Directadmin). Looking for long term projects, and possibility to create support/administration team or work independently. Ability to quick learn, work in multicultural company, and coaching and leading others Experience in remote work. Good communication skills and expertise in dealing with user problems, customer service, supplier relationships. Good system operation management, analytic and problem solving skills.  less

    solaris-administration linux-system-administration network-administration nagios nginx apache-administration openvz zabbix mysql freebsd puppet-administration amazon-ec2 system-automation unix-system-administration unix-shell 00 more less
    • $30.00 HOURLY RATE
    • 4.9
    • 248 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Programmer/Consultant

    Managing large scale IT projects requires a unique blend of expertise in strategic planning, process development, and leadership along with in-depth technical knowledge. I believe my qualifications are an ideal match for your organization, and I am confident I would … more

    Managing large scale IT projects requires a unique blend of expertise in strategic planning, process development, and leadership along with in-depth technical knowledge. I believe my qualifications are an ideal match for your organization, and I am confident I would make a valuable and immediate contribution to your operations. The following are highlights of my qualifications: A. Distinguished career directing the development of quality network and security solutions, including the design, configuration, and support of fully functional, reliable, and secure systems. B. Technical proficiency in numerous platforms, network protocols, and administration tools. C. Comprehensive industry training providing a broad understanding of project management. D. Exceptional leadership abilities with the demonstrated capacity to build, train, and mentor highly productive and motivated cross-functional teams.  less

    mysql php mail-server-implementation sendmail dns network-administration linux-system-administration apache-tomcat ftp ruby-on-rails database-administration 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 506 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
  • VOIP and Open Source Professional

    Asterisk/Kamailio/Elastix/FreePBX/Trixbox/Vicidial Professional. Worked on numerous projects on open source deployments like asterisk / kamailio (openser) based voip solutions, networking solutions like firewalls, utms, routers ( cisco/juniper) configuration with vlans, mail servers, web servers in the past … more

    Asterisk/Kamailio/Elastix/FreePBX/Trixbox/Vicidial Professional. Worked on numerous projects on open source deployments like asterisk / kamailio (openser) based voip solutions, networking solutions like firewalls, utms, routers ( cisco/juniper) configuration with vlans, mail servers, web servers in the past 7 years. Apart from this worked on joomla components, opencart customisations/ deployments, Emailer softwares like Interspire, Amazon Web Services, etc. Other work areas are Network designing/troubleshooting/security using open source tools like iptables/iproute for bandwidth management/ firewalling, vpn solutions like openvpn, ipsec tunnels, pptp vpn deployments.  less

    linux-system-administration mail-server-implementation openvpn firewalls joomla amazon-web-services email-marketing asterisk freepbx vicidial opensips network-administration cisco-routers 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 17 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 4 TESTS
  • Sr.Wordpress/Salesforce Front End,UI/Graphic/Web/Andriod Game Designer

    My name is Kirubha i am a native india with over 9 years of experience as a System administrator. I have Extensive Experience and Skills gained through establishing and developing full IT projects, networks and infrastructures from initial conception to … more

    My name is Kirubha i am a native india with over 9 years of experience as a System administrator. I have Extensive Experience and Skills gained through establishing and developing full IT projects, networks and infrastructures from initial conception to completion. Experience covers customer liaison, design, testing to successful implementation within budget, scope, timescales and process limitations. Extensive LAN, WAN, Hardware, Software experience. Working cross-functionally within a customer focused, multi-site environment, maintaining the delivery of IT services and technology projects. Up-to-date in IT developments. I also have web,graphic design,Andriod Game/App Graphic Designer and icon Designer experience, with intermediate knowledge of HTML, CSS, Joomla,Salesforce front end,Appex Visual Force, Wordpress and graphic tools such as Photoshop,illustrator Corel Draw and flash.  less

    html css3 adobe-illustrator adobe-photoshop corel-draw network-administration computer-networking wan operating-systems-development adobe-flash wordpress php salesforce-apex 00 more less
    • $17.78 HOURLY RATE
    • 4.9
    • 268 HOURS
    • INDIA
    • LAST ACTIVE
    • 21 PORTFOLIO ITEMS
    • 6 TESTS
  • Linux,VoIP and Database Administrator

    I am RHCE, CCNA & MCITP certified with over 5 years of System and Database Administration experience including experience in the areas of different Linux Distribution like Redhat, Suse-Linux, CentOS, Ubuntu, Debian and database like Mysql,Oracle etc. Major areas of … more

    I am RHCE, CCNA & MCITP certified with over 5 years of System and Database Administration experience including experience in the areas of different Linux Distribution like Redhat, Suse-Linux, CentOS, Ubuntu, Debian and database like Mysql,Oracle etc. Major areas of expertise: 1. Asterisk, Elastix, Trixbox, FreePBX, Vicidial, A2Billing 2. Amazon EC2,S3,VPS,VMWare,ESXi,Xen,Open VZ 3. Mysql & Oracle Database 4. LAMP, Mail, DNS, Proxy Server 5. OpenVPN and L2TP/IPSec VPN 6. Webmin,Cpanel, WHM,Zpanel 7. Cisco,Mikrotik, DD-WRT,OpenWRT and Pfsense  less

    tcp-ip cisco-routers unix-system-administration apache-administration redhat-administration voip-administration vpn network-administration linux-system-administration 00 more less
    • $11.11 HOURLY RATE
    • 4.8
    • 344 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 12 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Developer for iOS and Android, integration with web

    I am an experienced developer of applications for Mobile and Web. I also have project management skills and understanding of the network infrastructure. This allows me to create effective applications for a single user, and for the collective work. Also … more

    I am an experienced developer of applications for Mobile and Web. I also have project management skills and understanding of the network infrastructure. This allows me to create effective applications for a single user, and for the collective work. Also I am experienced in integrating different software data into one structure. I can create design of project and develop it. Also I can write user manual for developed application if it is needed. Mobile platforms: iOS & Android Web-services: PHP + MySQL + JSON / XML User interaction: JavaScript / AJAX / JQuery Data Exchange: JSON / XML / CSV / Excel / Distributed databases Social networks: Facebook / Twitter / VK.com / Google Plus CMS: Wordpress / OpenCart / Custom CMS I am interested in developing applications for: - brand advertisement and promotion; - corporation use: CRM, ERP, sales; - utilities; - interaction with site; - solutions for e-shops and e-services; - applications localizations (interface translating, design adaptation, etc.); - porting from iOS to Android and from Android to iOS; My experience is: with Android from 2010 with iOS from 2011 with PHP/MySQL from 2000 I am online everyday from 6:00(UTC) till 22:00 (UTC). If you need we can discuss your project by Skype, e-mail, etc. Also I provide support for my customers after project development finished. I am speak English, Russian and Ukrainian. For your project I will use all my expierence, skills and knowledge. I've been programming since 1996. My knowledge and experience allow to: 1. Perform architecture design applications; 2. Fulfill its application development independently or in a team. 3. Make tests and checks. 4. Prepare user documentation and installation instructions. 5. Publication of an application. 6. Advertising and promotion of app. 7. User support and development of the application for new purposes. For projects lasting more than 10 man-days are used methods of Extreme Programming (XP). Extreme programming techniques allow me to create a product the most satisfying customer requirements. After the Client provide requirements specification, the project is divided into phases lasting 3-5 man-days, with the most optimal order of execution. The final priority of stages is determined by the client. Note that the order of execution of works in phases affect the final cost of the work. The cost of any project is the result of the time required for performance of work, scope of work, the level of quality. In the framework of interaction systems (like Escrow service or other buyer protection) the customer creates a separate contract for every stage. Before the beginning of each stage the "to do list" should be agreed. Any additional work on the stage are made collateral contract. The transition to the next phase occurs after the adoption of the current phase and payments on it. This approach allows the customer to abandon the less valuable features of the application, change the specification as work progresses, and even at some point stop the development, without prejudice to the application. Moreover, at each stage the customer has a working application. You can see, this approach to application development can reach a compromise in the triangle of price - quality - time. You are welcome!  less

    android-app-development java mysql data-analysis software-testing network-administration project-management php wordpress ios-development 00 more less
    • $19.99 HOURLY RATE
    • 5.0
    • 115 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 23 PORTFOLIO ITEMS
    • 14 TESTS
    ASSOCIATED WITH:
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