Network Administrators & Consultants

Showing 6,277 freelancers

Network Administrators & Consultants

Showing 6,277 freelancers

  • Windows Systems Engineer | Exchange | SharePoint | AD

    Systems engineer with 8 years of experience managing server infrastructures and data-center operations across Microsoft platforms. Skills: - MS Windows Server 2003 /…/ 2012R2 – Active Directory, ISA, IIS, WSUS - MS Exchange 2007/2010/2013 - SharePoint 2007/2010/2013, SharePoint Designer 2007/2010 … more

    Systems engineer with 8 years of experience managing server infrastructures and data-center operations across Microsoft platforms. Skills: - MS Windows Server 2003 /…/ 2012R2 – Active Directory, ISA, IIS, WSUS - MS Exchange 2007/2010/2013 - SharePoint 2007/2010/2013, SharePoint Designer 2007/2010, InfoPath - Office 365 - PowerShell, VBSscript - Symantec Backup Exec 2010 - McAfee DLP, Trend Micro OfficeScan, Trend Micro Mobile Security, Symantec Endpoint Protection - IBM Blade Center, Flex Systems, X series - Virtualization: Hyper-V; Vmware (ESXi, vSphere)  less

    windows-administration microsoft-exchange-server microsoft-sharepoint-administration sharepoint-designer nagios microsoft-small-business-server-administration microsoft-hyper-v ms-office-365 microsoft-windows-powershell microsoft-server 00 more less
    • $18.89 HOURLY RATE
    • 4.9
    • 57 HOURS
    • POLAND
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 2 TESTS
  • Perl hacker and Voip Expert

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting … more

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies. click here to know me more: https://click.2-call.me/apa1  less

    asterisk a2billing freeswitch perl linux-system-administration c++ 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 2192 HOURS
    • CHINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • System administrator, Software developer, DevOps, DB Admin

    Continuously upgrading my knowledge and experience on many IT fields. My major expert areas: Cloud computing : AWS, Rackspace, Hostgator. Auto scaling, Optimizing, Minimizing costs, Monitoring Operating Systems : All Windows and Linux operating systems. TCP/IP networking, advanced routing, firewall, vpn, iptables... Development : Java, C#, Delphi, Shell scripts Databases: MySQL, PostrgeSQL, MsSQL, Oracle, MongoDB, Sqlite

    mysql linux-system-administration c# java apache-administration delphi nginx network-administration data-scraping sap windows-xp-administration database-administration xml database-modeling database-management database-programming c++ microsoft-visual-studio cpanel plesk apache-tomcat varnish-cache centos ubuntu fedora amazon-web-services amazon-ec2 unix-shell amazon-s3 atlassian-confluence ldap haproxy amazon-rds rightscale 00 more less
    • $26.00 HOURLY RATE
    • 4.9
    • 5532 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 21 TESTS
    GROUPS:
  • Linux,Windows,System Admin, cPanel/WHM,Plesk Expert, Nginx,Apache,AWS

    Working as a System Administrator for webhosting clients and undertaking system administration work in Linux and Windows servers. Experience in Linux / Windows server administration. Expert in LAMP Administration DNS management (Registrar end and Hosting end), Mail Services (Postfix, Qmail, Exim … more

    Working as a System Administrator for webhosting clients and undertaking system administration work in Linux and Windows servers. Experience in Linux / Windows server administration. Expert in LAMP Administration DNS management (Registrar end and Hosting end), Mail Services (Postfix, Qmail, Exim, Mail enable), Advanced knowledge and experience in handling Plesk and cPanel . Experience in server migration Virtualization ( Parallels Virtuozzo/openVZ) Expert in Perl and Bash scripting.  less

    apache-administration linux-system-administration windows-administration cpanel plesk iis nginx postfix wordpress amazon-web-services 00 more less
    • $7.00 HOURLY RATE
    • 5.0
    • 60 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Experienced Windows Linux, Unix, Citrix, ESXi, Network Administrator

    Windows, Unix and Linux servers. Managing OS33 Cloud server, AWS, Deploying VDI, ESXi, Xenserver, Xenapp, XenDesktop, Avaya CallManager. Cisco, Netgear, HP Procurve, Fortinet, Watchguard, Sonicwall, Barracuda, Juniper Switch, Router, NSA configuration. I'm in Tampa, Florida. Available to work from … more

    Windows, Unix and Linux servers. Managing OS33 Cloud server, AWS, Deploying VDI, ESXi, Xenserver, Xenapp, XenDesktop, Avaya CallManager. Cisco, Netgear, HP Procurve, Fortinet, Watchguard, Sonicwall, Barracuda, Juniper Switch, Router, NSA configuration. I'm in Tampa, Florida. Available to work from 8:00AM - 6:00PM Eastern time. If necessary feel free to call me at +1-813-598-6727  less

    linux-system-administration unix-system-administration qmail lotus-notes nagios vmware-administration adobe-photoshop adobe-illustrator technical-documentation technical-support windows-administration pfsense squid vmware-esx postfix citrix-xenserver citrix-netscaler 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 5518 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 11 TESTS
  • .Net/Java Developer | IT PRO

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with … more

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with up to 3 senior/middle developers during a few hours. Experience includes : -- Back-end: - Java / Java EE, JCF, Multithreading, JDBC, JSP, Hibernate - .Net / C#, ADO.NET/Entity Framework, ASP.NET MVC, RESTful API - Grails / Groovy -- Front-end: HTML, CSS, JavaScript/JQuery -- Hosting: Windows Azure, GlassFish. IIS, Tomcat -- Additional background : - Server technologies / AD DS, DNS, Hyper-V, IIS, DHCP, VPN, PowerShell. - Computer science, Artificial Neural Networks, common math and physics.  less

    c# asp.net-mvc ado.net windows-azure java windows-administration virtualization powershell artificial-neural-networks network-administration 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 34 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 5 TESTS
  • AWS | EC2 | RDS | CloudFront | S3 | Chef | DevOP

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS … more

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS in 2011 this has been my passion. I've built backend infrastructure for mobile applications. I've built scalable e-commerce sites using magento, wordpress etc. Whether its augmenting current windows infrastructure, migrating servers to the cloud with VPN configurations. Or building a highly scalable multi-region infrastructure, I'm your guy. Please take a look at my portfolio, I've written several blog posts about building magento infrastructure, plesk installs, docker, among others.  less

    amazon-web-services amazon-ec2 amazon-s3 amazon-rds sw-configuration-management plesk ubuntu linux-system-administration devops 00 more less
    • $72.22 HOURLY RATE
    • 5.0
    • 132 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Network Engineer : Cisco : Juniper : Fortinet :

    Despite the fact I am in young age I have years of experience with computers, networking and system. I am very tenacious and autodiact technical person for Cisco and Juniper Enterprise Network. I love to dig deep into specific technical … more

    Despite the fact I am in young age I have years of experience with computers, networking and system. I am very tenacious and autodiact technical person for Cisco and Juniper Enterprise Network. I love to dig deep into specific technical challenges. 5+ years experience in Enterprise Netwrok. # Some Highlights # @ Defining architecture and design for Enterprise customers. @ Lead engineer on some of the big enterprise networking projects. @ Training Internal Employee and customer. @ Cisco Instructor for Nepal Telecom Training Center. Main focus on Cisco and Juniper internetworks at Campus and Enterprise customers http://np.linkedin.com/in/sudandhakal  less

    cisco-ios juniper-routers cisco-routers ipsec vpn ospf bgp linux-system-administration network-planning network-security jncia-junos junos firewalls cisco-asa mpls mac-os-app-development 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • NEPAL
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 6 TESTS
  • Technical Consultant & Microsoft Certified Trainer(B.Sc. ,MCSE,MCITP)

    Over the last 14 years, I was involved in Microsoft Infrastructure Products, VMware and BlackBerry Enterprise Server, designing and implementing business critical solutions for medium to large enterprises. My core competencies are Active Directory, Exchange Server, System Center, Lync Server … more

    Over the last 14 years, I was involved in Microsoft Infrastructure Products, VMware and BlackBerry Enterprise Server, designing and implementing business critical solutions for medium to large enterprises. My core competencies are Active Directory, Exchange Server, System Center, Lync Server and ISA/TMG server, BES, Symantec, NetApp, EMC, and Infortrend EonStor . I'm also qualified as a Microsoft Certified Trainer (MCT) and fully authorized to deliver Microsoft Official Curriculum. I'm also ITIL v3 certified.  less

    microsoft-exchange-server 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 92 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Web Developer .NET stack with extensive database design experience.

    I have 4 years of software development experience creating web applications mainly based on the .NET stack (MVC). I create complete solutions based on a variety of back ends including SQL server, MySQL, Access, complete with reporting capabilities. I have … more

    I have 4 years of software development experience creating web applications mainly based on the .NET stack (MVC). I create complete solutions based on a variety of back ends including SQL server, MySQL, Access, complete with reporting capabilities. I have worked on several large scale projects for academic institutions for student enrollment, management and administration, which included migrating, combining and integrating several legacy databases without downtime, and creating extensive reporting capabilities.  less

    asp.net-mvc sql .net-framework ado.net 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 674 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
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