Other - Networking & Information Systems Professionals

Showing 5,273 freelancers

Other - Networking & Information Systems Professionals

Showing 5,273 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
  • Computer Systems and 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
    • $44.44 HOURLY RATE
    • 4.9
    • 523 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 13 PORTFOLIO ITEMS
    • 13 TESTS
  • Sr Windows and Linux Systems Admininstrator \ AWS(EC2) Administrator

    I'm self-motivated, autonomous engineer with over 11 years of experience in Linux(Unix) and Windows systems administration. I perform each project to the fullest of my capabilities and with the dedication that is expected from a professional as myself … more

    I'm self-motivated, autonomous engineer with over 11 years of experience in Linux(Unix) and Windows systems administration. I perform each project to the fullest of my capabilities and with the dedication that is expected from a professional as myself. In short I've great experience with: - OS deployment, configuration and troubleshooting: CentOS, Ubuntu, Debian, FreeBSD, Windows Server 2003 - 2012R2 - Hosting engines: WHM (cPanel), ISPmanager, Plesk, DirectAdmin, Kloxo,Zpanel - AWS (RDS, EC2, SES, S3, CloudFront, VPC, Route53, RedShift, Elastic Beanstalk etc.) - Server and client apps: WEB (Apache, IIS, Nginx, Varnish, APC, PHP etc), SQL (MySQL, MSSQL administration), FTP (ProFTP, PureFTP, IIS etc.), Mail (Postfix, Zimbra, Dovecot, Zimbra, MS Exchange 2007-2013 etc.). - Deep knowladge in Virtualization: Xen, OpenVZ, KVM, VMware, Hyper-V, Docker. Other skills: Atlassian JIRA\Confluence deployment and troubleshooting. I'm good at server migration, installation and configuration,t troubleshooting and security. Also I'm able to provide on-going support services. Each problem that I solved became a rule which served afterwards to solve other problems. My job it's my rest.  less

    linux-system-administration windows-administration network-administration database-administration cpanel plesk amazon-web-services domain-migration network-security virtualization 00 more less
    • $28.89 HOURLY RATE
    • 5.0
    • 1370 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    GROUPS:
  • Network & Security Consultant (Routing, Switching, Security)

    Passionate & enthusiastic professional with more than 8 years of experience in Networking, Information Security, Application Loadbalancing & Wireless networking. Believes in professionalism, dedication and client satisfaction Expertise in network design & implementations, network security, migrations, datacenter consolidation and network build-outs. My rich … more

    Passionate & enthusiastic professional with more than 8 years of experience in Networking, Information Security, Application Loadbalancing & Wireless networking. Believes in professionalism, dedication and client satisfaction Expertise in network design & implementations, network security, migrations, datacenter consolidation and network build-outs. My rich & refined experience in the cutting edge technologies of networking enables me to offer the following services - Implementation of Routing, Switching, Security, Loadbalancing & Wireless networking solutions - Implementation & troubleshooting of VPN tunnels - Configuration of routers, switches, firewalls, Loadbalancers, IPS & wireless network devices manufactured by Cisco, Juniper, f5, Checkpoint, Citrix, Fortinet, Bluecoat, Nortel etc. - Malware removal (Virus/Worm/Trojan/Spyware/Adware/keylogger/Rootkit) - Packet sniffing & traffic analysis - Monitoring tools deployment and configurations (SNMP/Syslog/Netflow)  less

    firewalls cisco-routers cisco-asa network-administration ccnp network-security load-balancing vpn virus-removal 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 163 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 7 TESTS
  • Senior Linux system administrator, network administrator

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills … more

    I am expert Linux Server Administrator having 10+ years experience and ready to work. I have extended experience on web hosting technologies and cloud. Ready to start working at your project right now! -- Below you can see my general skills -- * OS’s: Debian, Ubuntu, CentOS, RedHat, CloudLinux, Gentoo, FreeBSD (administration, configuration, audit, optimization); * Software Configuration Management: Salt, Ansible; * Web servers: nginx, Apache (installation, configuration, optimization); * Database servers: MySQL, Postgresql, MariaDB, Percona, MongoDB (installation, configuration, optimization, profiling); * Mail servers: Exim, Postfix, Sendmail, Zimbra, Qmail, Dovecot + Spamassassin, ClamAV; * Webhosting Administration Panel: ISPManager, Billmanager, VMManager, cPanel, ISPConfig, Plesk, DirectAdmin, VestaCP, webmin; * Amazon: AWS setup or Amazon tools; * Virtualization: OpenVZ, XEN, KVM, VMWare, VirtualBox; * Load balancing: HAproxy, Nginx, PowerDNS, BIND, Route53; * System Backup and Restore automatization;   * Network services: dns (bind, powerdns), vpn (mpd,pptpd,openvpn), firewalls (iptables/ipfw), file server (samba3/4), proxies (squid, 3proxy, privoxy, nginx); * Monitoring: Zabbix, Munin, Nagios; * FTP: Vsftp, Pureftp, Proftp. Thank you for viewing!  less

    debian-os centos database-programming mysql php linux-system-administration database-administration nginx apache-administration openvz 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • MONTENEGRO
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 12 TESTS
  • XMPP/VoIP developer

    Excellent understanding of XMPP from client to server. I have implemented XMPP client for web app (using Strophe), android app (using Smack), desktop app (using libjingle). On ejabberd, I have implemented many modules that defines own presence, iq, message, even … more

    Excellent understanding of XMPP from client to server. I have implemented XMPP client for web app (using Strophe), android app (using Smack), desktop app (using libjingle). On ejabberd, I have implemented many modules that defines own presence, iq, message, even I can define own stanza. Execellent understanding WebRTC. I have implemented Linux application that uses XMPP or Websocket for signaling and WebRTC for media transport to establish p2p audio&video call. Source code of Android WebRTC application are public on github (https://github.com/cuongth/AppRTCDemo). In these days, I spend free time on Chicago Boss framework and cowboy server.  less

    c c++ systems-development android-app-development voip-software xmpp erlang linux-system-administration mongodb postgresql 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 129 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 9 TESTS
  • Migration expert\Linux System Administrator

    Hello. I'm self-motivated Linux system administrator with 7 years experience. I have great experience in: - Linux maintaince/troubleshooting: Debian, Centos, Gentoo, Ubuntu, RHEL, CoreOS - Web Servers: Nginx, Apache, Unicorn - Linux serverside: iptables, rsync, named, OpenVPN and most of common … more

    Hello. I'm self-motivated Linux system administrator with 7 years experience. I have great experience in: - Linux maintaince/troubleshooting: Debian, Centos, Gentoo, Ubuntu, RHEL, CoreOS - Web Servers: Nginx, Apache, Unicorn - Linux serverside: iptables, rsync, named, OpenVPN and most of common and uncommon tools. - Monitoring: Zabbix, Nagios/Icinga, Munin, Cacti, Monit - Hosting providers : Softlayer, Hetzner. - DB: MySQL, Percona XtraDB Cluster, PostgreSQL, Redis, MongoDB - Backup/Migration - Mail servers: Postfix, Exim, Sendmail, Dovecot, Courier - Hosting panels : plesk, whm\cpanel, ISP , DirectAdmin - Virtualization: Xen(solusVM) , KVM, OpenVZ + ovz panel, Proxmox, Vagrant, Docker. - CMS : Wordpress, drupal, magento. - Ruby/ node.js APPS  less

    linux-system-administration bash system-automation data-backup lamp-administration network-administration windows-administration joomla cpanel whm cakephp phpnuke plesk nagios nginx iptables memcached 00 more less
    • $22.22 HOURLY RATE
    • 4.8
    • 884 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Linux / Windows System Administrator

    Hi, My name is Leonid Kuznetsov. I have earned a Master's Degree in IT at the Moscow State University of Instrument Engineering and Computer Science. I clearly understand ITIL processes, clustering, HA systems, and how important is system monitoring … more

    Hi, My name is Leonid Kuznetsov. I have earned a Master's Degree in IT at the Moscow State University of Instrument Engineering and Computer Science. I clearly understand ITIL processes, clustering, HA systems, and how important is system monitoring. At the moment I'm working in the Lithuanian energy sector. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Listed below are my experience and skills. Operation systems: Win servers - 2003, 2008, 2012 (AD, DC, DNS, DHCP, Proxy, RAS, NAT, GPO, RDP, WSUS, KMS, TS and many more); Linux - Debian, Ubuntu, CentOS, RHEL, Oracle Linux, SUSE (LAMP, LEMP, BIND, Puppet, Proxy, Mail and Web servers, firewalls, monitoring, etc); UNIX - HP-UX; Virtualization: VMware, Hyper-V; Web servers: apache, nginx, IIS; System monitoring: cacti, zabbix, nagios, monit, Oracle Cloud Control 12c, System Center Operations Manager 2012, HP SIM; DB: MySQL, MongoDB; Network: Routers, switches, VPN, VLAN, WLAN, firewalls; Backup SA experience: Symantec NetBackup 7.5, CA ARCserve 15, EMC Avamar 6; SAN sistems knowledge: SVSP, HP EVA, 3PAR;  less

    linux-system-administration lamp-administration windows-administration network-administration apache-administration dns nginx amazon-web-services virtualization mysql 00 more less
    • $17.17 HOURLY RATE
    • 5.0
    • 53 HOURS
    • LITHUANIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 6 TESTS
  • CCIE 42930,2xCCNP,Juniper Specialist

    Hello, Senior Network and Security engineer with more than 10 certifications from different vendors including a CCIE. As a Cisco TAC engineer I fixed over 2000 different issues on multiple platforms. Let me show you I am your network engineer … more

    Hello, Senior Network and Security engineer with more than 10 certifications from different vendors including a CCIE. As a Cisco TAC engineer I fixed over 2000 different issues on multiple platforms. Let me show you I am your network engineer. Certifications List: CompTIA Security+ CCNA JNCIA CCNA Sec CCNP Security CCNP Routing&Switching JNCIS-SEC CCIE Routing&Switching 42930 Languages: Spanish, English  less

    cisco-asa vpn cisco-routers juniper-routers firewalls cisco-ios ipsec website-analytics 00 more less
    • $88.89 HOURLY RATE
    • 5.0
    • 103 HOURS
    • COSTA RICA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 2 TESTS
  • System analyst/technical writer with telecom experience

    My main specification is networking and telecommunications. I have a 5+ years experience (such as installation, administration, tech support) with hardware of different vendors; and 2 years experience in the designing of OSS/BSS solutions. The main streams of my … more

    My main specification is networking and telecommunications. I have a 5+ years experience (such as installation, administration, tech support) with hardware of different vendors; and 2 years experience in the designing of OSS/BSS solutions. The main streams of my designing experience are: business analysis, system analysis of different telecom systems (e.g. NMS/EMS), customer requirements collecting, creating of use cases, functional requirements, design, business diagramms and other documents. I have a good knowledge in following telecom domains: IP/Metro Ethernet/MPLS, SDH/PDH, WDM, Microwave. I`m also interested in translatting of different technical documents from English to Russian and vice versa. My native language is Russian, second language - English (conversational level).  less

    technical-documentation software-documentation travel-planning computer-networking telecommunications-engineering cisco-routers sparx-systems-enterprise-architect microsoft-visio uml atlassian-jira 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 55 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 9 TESTS
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