Network Administrators & Consultants

Showing 9,006 freelancers

Network Administrators & Consultants

Showing 9,006 freelancers

  • 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
  • Experienced Technologist

    I am an Talented and Experienced Network Engineer, sales engineer, physical security engineer (Alarm Systems, Access Control, and Video Surveillance), and communication specialist with over 20 years in the design, installation, configuration, administration and troubleshooting of networks, security systems, video … more

    I am an Talented and Experienced Network Engineer, sales engineer, physical security engineer (Alarm Systems, Access Control, and Video Surveillance), and communication specialist with over 20 years in the design, installation, configuration, administration and troubleshooting of networks, security systems, video surveillance (IP Cameras, Analog and HD-SDI camera systems). My primary language is English and I speak and read binary natively. I do live and breathe IP networking, I do not claim to know everything there is to know about Networking; however, I enjoy the work I do and I do my best to be as efficient and as useful as I can while always putting the client's interest before my own financial gains. I can provide consulting services and remote network engineering skills utilizing LAN infrastructure - Routers/Switches/Firewall, VLANS, LACP, PAgP,802.1q, RSTP, OSPF, BGP, Trunking, etc. WAN infrastructure - Point to Point DS3 (T3) and DS1 (T1) utilizing ATM and SONET Technology; DSL and cable modem Internet Backup links, Site to Site/Site to Mult-isite and Client to Site VPNs. Internet and intranet DNS - Domain Registration, Domain setup on Microsoft / Bind DNS servers, and troubleshooting DNS Related issues. - Domain delegations utilizing glue records and also setting up caching nameservers. Wireless: Mikrotik, Ubiquiti, and Motorola Point-to-Point and Point-to-Multipoint design, installation and configuration. Wireless RF planning of indoor and outdoor wireless networks utilizing heat maps for wifi coverage. Technology: I have a great deal of experience in various ISP (Co-location, Data Center, Internet Service Providers) technologies that focuses on managed services utilizing Juniper and Cisco Firewalls, Cisco, HP and Foundry Layer 2 and Multilayer switches, Cisco and Juniper Routers, Cisco and Foundry Load Balancing utilizing Content Switching and ServerIron Technology, and IP address optimization. IPv6: I can provide IPv6 support and consulting services on the creation of business plans, business cases, migration, transition, new installations, and upgrades to your existing IPv4 network. Security Solutions: Honeywell, 2GIG, GE, ITI, Alarm.com, Total Connect, Interactive services, IP CCTV, IP Surveillance, IP Camera, Alarm System and CCTV System design (Pre and Post Sales Support). CVE-2014-0160 - OpenSSL Heartbleed patching.  less

    dns firewalls apache-administration cisco-routers tcp-ip electronics antenna-design vpn cisco-asa computer-networking wireless-network-implementation network-security ipsec network-administration nagios zabbix ingress-filtering bgp ospf network-planning wireless-security security penetration-testing linux-system-administration windows-administration 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 430 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 10 TESTS
  • iOS / Mac developer

    Over the last 4 years, I have developed a lot of Mobile applications for iOS and few desktop applications for Windows and Mac. I am looking for opportunities to build the Mobile or Mac apps. I've developed the applications … more

    Over the last 4 years, I have developed a lot of Mobile applications for iOS and few desktop applications for Windows and Mac. I am looking for opportunities to build the Mobile or Mac apps. I've developed the applications in fields of Education, Web, Music, SQLite and etc. I also have wide experience in the following areas: Objective C, C++, SQL, Python, Bash, Django, Google App Engine, Amzon, HTML, Web Development and so on. My previous role was system administrator for 5 years, so i'm good in linux and in system admintration.  less

    linux-system-administration nginx python ios-development cocoa-touch iphone-app-development qt objective-c 00 more less
    • $35.00 HOURLY RATE
    • 4.9
    • 872 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
  • PHP Symfony 2.0 | 1.4 | 1.0, CodeIgniter, Zend, CakePhp, Yii and more.

    Hi, I'm backend developer as well as frontend. I've total 9 years experience on multiple technologies. I've been developing wide range of User Interfaces, programming backend for them, testing on users, correcting what wasn't optimal yet … more

    Hi, I'm backend developer as well as frontend. I've total 9 years experience on multiple technologies. I've been developing wide range of User Interfaces, programming backend for them, testing on users, correcting what wasn't optimal yet, testing and so on. While I know a lot of other frameworks, I'm writing mostly in Symfony, CodeIgniter, Zend as they are increasing my performance in the meaningful way. Of course I use CVS, SVN, Git and Mercurial (depends on a project). Of course I like scrum working system (agile). Thanks  less

    php symfony mysql amazon-web-services lamp-administration git sql wordpress codeigniter cakephp magento oscommerce opencart jquery yui dojo j2me j2se j2ee joomla drupal hibernate c++ ajax agile-software-development html xhtml xml css soap phpbb typo3 tortoise-svn cvs amazon-ec2 amazon-s3 yii-framework 00 more less
    • $27.78 HOURLY RATE
    • 4.6
    • 779 HOURS
    • INDIA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
  • iOS/Cocos2d/Cocos2d-x/Unity3d Developer

    Over the last 4 years, I have been working as a Lead Mobile Developer. My expertise lies in iOS, Android and Unity3d development. I have wide range of experience in native applications, Cocos2d and Unity3d Games. I also have great … more

    Over the last 4 years, I have been working as a Lead Mobile Developer. My expertise lies in iOS, Android and Unity3d development. I have wide range of experience in native applications, Cocos2d and Unity3d Games. I also have great skills in Cocos2d-x and Unity3d for cross platform release. Any sort of Ads integration or In-App Purchases (Charboost, PlayHaven, iAD, Vungle, AdMob, AirPush, MoPub, AppLovin etc.) for both iOS and Android is a piece of cake for me. I can assist in any kind of Mobile Development problem, from start of its development to the final upload. My core competency lies in the complete satisfaction of my clients. Here at oDesk, i am seeking opportunities to work with professional clients and to have long term business relationship.  less

    ios-development 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 588 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 3 TESTS
    GROUPS:
  • Software Architect

    Goal: Looking for a technical consultant job. PROFILE 14+ years of Storage/Server/Network/ Embedded software industry experience having spent much of my career in the information and storage emerging technology space. I worked as a senior architect in Trilogy … more

    Goal: Looking for a technical consultant job. PROFILE 14+ years of Storage/Server/Network/ Embedded software industry experience having spent much of my career in the information and storage emerging technology space. I worked as a senior architect in Trilogy Inc ,HP Lab and CMC R&D Lab. I have successfully delivered multiple functional solution on High performance computing, Distributed file system, Unified Storage Management, Data Center Fabric, Network Security, Geo Replication, Continuous Access, Host/Fabric/Array Virtualization, Storage Tier to large scale customers. As a member of SNIA,T11, Apache, OPEN WSMAN, Brocade/Cisco/HP/EMC technical forum I have active participation in some industry initiatives on Enterprise storage management and storage virtualization. I have participated in multiple open source activities to address the enterprise storage management and data protection challenges. I am experienced of working in all phases software development and posses excellent knowledge of software engineering. SOFTWARE SPECIALIZATION Expert programmer in JAVA/J2EE/C/C++. I was senior architect of market leading products like Network Authority, Storage Essential and Data Protector . DOMAIN SPECIALIZATION Enterprise Storage, Virtualization, Network Management, Cloud Computing, File system, Hadoop, High Performance Computing, Linux. INDUSTRIAL EXPOSURE Worked as Technical Consultant for Trilogy Inc for market leading Product Network Authority Worked as a technical architect for Hewlett Packard market leading SRM product storage essential. Developed the Discovery and Backup framework for Network Infrastructure Developed Management Framework for managing Brocade/CISCO/Qlogic/McData SAN switches. Designed and Developed product on distributed file system and high performance computing. Developed Application for RADAR DATA PROCESSING, Internet Banking and Image Processing. CERTIFICATION Brocade Certified Fabric Designer (BCFD-8Gb) Brocade Certified Fabric Professional( BCFP -8Gb) Sun Certified Java Programmer(SCJP)  less

    j2ee c c++ 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 5772 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • MCITP (System Administration), MCT, MCSA, MCSD: Web Applications

    Experienced System Specialist, MCSA/MCITP/MCSD. In-depth knowledge of business operations and Information Tecnology Systems, project management, enterprise system integrations and information security with over eight years with hands on experience as an Enterprise Administrator and Network Manager in Windows … more

    Experienced System Specialist, MCSA/MCITP/MCSD. In-depth knowledge of business operations and Information Tecnology Systems, project management, enterprise system integrations and information security with over eight years with hands on experience as an Enterprise Administrator and Network Manager in Windows Server 2003 & Windows Server 2008 environments. Experience in hardware and software virtualization using VMware and Hyper-V and App-V. Practiced understanding Active Directory, Group Policies, NPS, NAP, Exchange, SQL Server, Dynamics CRM, ERP, PKI and DFS. Experience as a corporate Microsoft/Certification trainer at one of gold certified partners of Microsoft. Proficent in Server 2012 and 2008 (inc.Server Core edition), Hyper-V, switches and many other technologies. I have been highly involved in server virtualization for seven years and am proficient in both VMware and Microsoft Hyper-V. I am also providing consulting services for web applications. I am a member of DotNetNuke Corp Internationalization Team and I'm working to expand product features to fully support Turkish localization. I am always looking for new opportunities to develop my skills. Check my Microsoft Profile below: https://www.mcpvirtualbusinesscard.com/VBCServer/idumlupinar/profile  less

    dotnetnuke windows-administration database-administration crm e-learning sql microsoft-excel isa-server microsoft-hyper-v-server network-administration microsoft-exchange-server dns technical-documentation document-review translation microsoft-dynamics business-intelligence api-documentation plesk ftp mysql php asp.net linux-system-administration ubuntu aspdotnetstorefront html html5 windows-7-administration windows-8-administration windows-xp-administration helpdesk-support translation-english-turkish 00 more less
    • $48.89 HOURLY RATE
    • 5.0
    • 2202 HOURS
    • TURKEY
    • LAST ACTIVE
    • 13 PORTFOLIO ITEMS
    • 14 TESTS
    GROUPS:
  • Network/Security/VoIP Specialist (Cisco, Linux, Asterisk)

    I am a Network/Security/Voice Specialist with 5 year experience. I specialize in designing and implementing open-source based solutions such as CentOS, Debian, Ubuntu, Postfix, BIND, Asterisk, FreePBX, Trixbox, Elastix, A2billing, fail2ban, pfsesne. I have every day hands-on experience … more

    I am a Network/Security/Voice Specialist with 5 year experience. I specialize in designing and implementing open-source based solutions such as CentOS, Debian, Ubuntu, Postfix, BIND, Asterisk, FreePBX, Trixbox, Elastix, A2billing, fail2ban, pfsesne. I have every day hands-on experience in designing, configuring and troubleshooting of complex IP networks based on Cisco, Juniper, Nortel, Huawei, Fortinet, CheckPoint equipment. I have in-depth knowledge of the following technologies : LAN, MAN, WAN, IP VPN, RAS, IPSec, SSL VPN, Frame-Relay, Routing, Switching, Load-balancing, Firewalls , Intrusion Prevention Systems.  less

    asterisk trixbox freepbx cisco-routers vpn 00 more less
    • $22.22 HOURLY RATE
    • 4.9
    • 87 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Server Administrator, Virtualization, Networking - CISCO, Google Apps

    My objective is to bring excellent client satisfaction, providing quality and professional work. I am an IT Engineer with bachelor degree. I'm also an experienced Linux Server Administrator, areas of my expertise are: *Google Apps Certified Deployment Specialist *Windows … more

    My objective is to bring excellent client satisfaction, providing quality and professional work. I am an IT Engineer with bachelor degree. I'm also an experienced Linux Server Administrator, areas of my expertise are: *Google Apps Certified Deployment Specialist *Windows family Operating Systems (administration, configuration, audit, optimization) *Rights Management System for Active Directory (installing, configuring) *Linux - CentOS, RedHat, Debian, Ubuntu, Gentoo (administration, configuration, audit, optimization) *Webhosting Administration (cPanel, Plesk, DirectAdmin) *Amazon AWS setup using RightScale.com or Amazon tools *Apache (installation, configuration, optimization) *Network administration (CCNA certified) *MySQL (installation, configuration, optimization) *Subversion systems - SVN, Perforce (instalaltion, configuration) *Atlassian JAVA applications - Jira, Confluence, etc. (installing and configuring) *SMS Gateway (Kannel, PlaySMS) *Mail programs (Exim, Postfix, Qmail, dovecot, ssmtp) *Webprogramming knowledge: PHP, HTML, CSS, JavaScript *System Backup and Restore automatization *System Services Monitoring automatization *Virtualization (VMWare, VirtualBox, HyperVM, OpenVZ, Xen) *Shell Scripting *VPN systems, OpenVPN (installation and configuration) I can figure out fast the problem and find a solution for it. Languages that I speak: Russian and Romanian - native speaker; English - advanced level.  less

    lamp-administration computer-networking linux-system-administration scripting google-apps amazon-ec2 amazon-web-services apache-administration nginx mysql subversion git atlassian-jira drupal mail-server-implementation virtualization vmware-esx vmware-administration openvpn 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 1398 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 17 TESTS
    GROUPS:
  • Linux System Administrator / Technical Writer

    LINUX ADMINISTRATION: Whether your business needs a virtualization solution, remote administration, more secure and sophisticated software services, or simple, clean, and efficient publications or websites, I'll bet I can solve your problems quickly and on-budget. WRITING: Looking for great … more

    LINUX ADMINISTRATION: Whether your business needs a virtualization solution, remote administration, more secure and sophisticated software services, or simple, clean, and efficient publications or websites, I'll bet I can solve your problems quickly and on-budget. WRITING: Looking for great writing? Looking for someone with a strong tech background who is able to write clear, engaging text with the clarity and focus of a professional teacher? Do your company's software documentation and user guides need greater clarity? Is it time for a major update? I can help. Over the years I've written and edited enterprise software documentation, user guides, tutorials, and hundreds of articles. My careful attention to detail, experience and love for both writing and editing will ensure high quality output for written and desktop publishing projects. I'm familiar with Atlassian Confluence and other Wiki documentation systems. NOTE: As I use only open source software for my desktop publishing projects, my customers can both keep and easily reuse the original files.  less

    technical-writing article-writing business-writing atlassian-confluence technical-documentation users-guide-writing linux-system-administration tcp-ip ubuntu html print-layout-design 00 more less
    • $25.00 HOURLY RATE
    • 4.4
    • 147 HOURS
    • CANADA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 10 TESTS
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