Network Administrators & Consultants

Showing 9,007 freelancers

Network Administrators & Consultants

Showing 9,007 freelancers

  • 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
  • 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:
  • Linux System Engineer

    I have been working on deploying and managing Linux web servers using different technologies, Apache , Nginx, Varnish-cache, Php-fpm, Fcgi, Dso, SuPhp, Cpanel, Webmin, Virtualmin, Memcached, Apc, etc... and i have specialized at increasing website performance and making the best use … more

    I have been working on deploying and managing Linux web servers using different technologies, Apache , Nginx, Varnish-cache, Php-fpm, Fcgi, Dso, SuPhp, Cpanel, Webmin, Virtualmin, Memcached, Apc, etc... and i have specialized at increasing website performance and making the best use of machine resources. I also have experience in automating server recurring tasks and application deployment and configuration using bash and python. I always look forward to use my knowledge in managing Linux servers, learning new technologies, enhancing my current knowledge and skills and passing my knowledge to others.  less

    python wordpress linux-system-administration bash data-backup memcached performance-tuning cpanel apache-administration nginx 00 more less
    • $17.78 HOURLY RATE
    • 5.0
    • 330 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
  • 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
  • CMS and Ecommerce solutions provider

    Over the last 4 years, I have developed number of websites for web design agencies and small businesses. I manage all tasks individually and I always make sure to go for the highest quality output with maximum speed possible depending … more

    Over the last 4 years, I have developed number of websites for web design agencies and small businesses. I manage all tasks individually and I always make sure to go for the highest quality output with maximum speed possible depending on the project. I know my hourly rate is a bit high but it is always up to you whether going for a cheaper solution and spend a lot of your precious time or join hands with me and finish you project in less time as possible. :) Thank you for visiting my profile. Have fun! Past Projects WordPress: http://www.aminiconcepts.com http://www.customhomedesigns.com.au http://www.tripnatravels.com. http://blog.epicempire.com.au http://www.motorpoint1.com.au/ Shopify: http://www.hipinteriorsforkids.com.au/ http://www.threadbare.co/ http://pattisonspatisserie.com.au/ Big Commerce: http://:www.epicempire.com.au Codeigniter: http://www.stillbeauty.com.au http://pplaters.com.au/ Management Information System for the Postgraduate Institute of Agriculture, University of Peradeniya, Sri Lanka (Intranet) Amini Concepts CRM Dashboard and Reporting (Intranet) Custom Framework: http://www.mywish.lk Open Cart: http://www.mystore.lk https://www.doctorled.com/store/  Static: http://www.senspaceylon.com http://www.vetworldlanka.com Prestashop: http://lomiandlola.com/ Capsule CRM Amini Concepts CRM Dashboard and Reporting (Intranet)  less

    wordpress bigcommerce shopify crm web-design html xhtml css css3 php mysql jquery atlassian-jira atlassian-confluence twilio-api opencart twitter-bootstrap 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1869 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 9 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
    • 5778 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • IT Architect - Network Specialization

    Education Technical Highschool Degree= Computer Programming Specializiation Associate Degree =Software Programming Bachelors Degree = Bch in Computer Science - Network Security Specialization Masters Degree(In progress)= Communication Systems (Internetworking) Professional Recognitions Cisco Certified Network Associate Cisco Certified Network Professional Cisco Certified Security … more

    Education Technical Highschool Degree= Computer Programming Specializiation Associate Degree =Software Programming Bachelors Degree = Bch in Computer Science - Network Security Specialization Masters Degree(In progress)= Communication Systems (Internetworking) Professional Recognitions Cisco Certified Network Associate Cisco Certified Network Professional Cisco Certified Security Professional Cisco Certified Internetwork Expert (Lab Pending) Cisco Certified Academy Instructor Public Recognitions Cisco NetPro (husycisco) https://supportforums.cisco.com/reputation.jspa?username=husycisco Experts-Exchange Qualified Expert (MrHusy) http://www.experts-exchange.com/M_3788926.html 8+ (Intense) years of experience I am already helping people out in above communities for free, you can feel safe that you wont have a poor delivery of tasks or projects.  less

    cisco-routers cisco-asa firewalls vpn network-planning mpls bgp juniper-routers 00 more less
    • $137.78 HOURLY RATE
    • 5.0
    • 186 HOURS
    • SWEDEN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 4 TESTS
  • Cisco Telecommunications Engineer - Powering productivity through Comm

    Who I am... Network Engineer with 3+ years of experience working with a variety of technologies from different vendor like Cisco, VMware, Microsoft, Watchguard, Barracuda, etc. I had designed and implemented networks from scratch starting on the infrastructure (Routing and … more

    Who I am... Network Engineer with 3+ years of experience working with a variety of technologies from different vendor like Cisco, VMware, Microsoft, Watchguard, Barracuda, etc. I had designed and implemented networks from scratch starting on the infrastructure (Routing and Switching), Security and finally the Applications (Unified Communications and Collaboration). My Mission... I specialized on designing and implementing network solutions for small, medium and large businesses in many different vertical markets like the oil and gas industry, banking, food and beverages industry and others. I had achieved customer satisfaction 100% of the time and exceeded their expectations while staying on-budget, meeting deadlines and finding new business opportunities inside the company and the customers. Always looking for the biggest challenges that help me excel myself not only in the networking field, but also in the business management side of the company making myself an integral and interdisciplinary engineer capable of achieving the impossible. Cisco certified network professional with CCNP Voice, CCNP R&S and many other specialist certifications. VMware certified as VCP.  less

    cisco-ios windows-administration linux-system-administration cisco-voip network-administration computer-networking voip-administration 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 244 HOURS
    • VENEZUELA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • AWS,Cloud, VOS , Asterisk,VoIP,Linux,BulkMail

    Over the last 9 years I've been working in web hosting industry and have a hand on experience of Linux/Unix system and A+ expertise in all Linux troubleshooting. I've expertise of Amazone, RackSpace, VMWare ESXi(4,5 … more

    Over the last 9 years I've been working in web hosting industry and have a hand on experience of Linux/Unix system and A+ expertise in all Linux troubleshooting. I've expertise of Amazone, RackSpace, VMWare ESXi(4,5), XenServer, Load Balancer, WHM/Cpanel, Plesk, ISPcp, ISPConfig, DirectAdmin, VirtualMin, Apache, MySQL, Postfix, Dovecot, Exim, Squid, OpenVPN, OpenSSL, Hadoop, Hbase, Solr, Redis, FFmpeg, FFmpeg-php, SugarCRM, ViciDial, VtigerCRM, Shell Scripting, Perl Scripting, PHP, RoundCube, SquerrileMail, Enterprise level Hosting/Mail Servers like Zimbra for large scale Setup with full security features and System Backups. I also have VOIP expertise and following are my favorite Asterisk PBX, SS7 Signaling,IVR Systems, Dictation Systems.  less

    freebsd linux-system-administration bash perl apache-administration centos whm cpanel plesk mail-server-implementation asterisk amazon-web-services vmware-esx mysql postgresql load-balancing amazon-ec2 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 357 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 2 TESTS
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