Network & System Administrators

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  1. Dan Dragulescu

    Dan Dragulescu

    Windows Server Administrator, Active Directory, Networking

    Romania - Last active: 12/04/2014 - Tests: 6

    Over the last 5 years I've worked as a 2nd and 3rd level support in two multinational companies as a Windows Server Administrator. During this time I have worked with many customers all over the world, the largest had over 120.000 users and 3000 servers both virtual and physical. My main experience connects to Microsoft Windows server 2003/2008/2012, installing, patching, configuring, troubleshooting (managed server). My knowledge and experience applies in the fields of : active directory, DNS, file services, print services and networking. I also have a medium knowledge of IIS and database administration. I am currently seeking opportunities to apply my knowledge by bringing excellent quality with my work.

    Groups: Microsoft Certified Professionals

    $24.00 /hr
    31 hours
    5.00
  2. Oleg T.

    Oleg T.

    Advanced Network Solutions

    Russia - Last active: 10/18/2012 - Tests: 5 - Portfolio: 1

    Installations, maintenance, configuration and support routers, switches, multiplexers from various vendors. Technology: SDH, PDH, WAN communication, Optical networks, Wireless, DSL, HPNA. TCP/IP, IP VPN, PPP, HDLC, NAT, FireWall, QoS, VLAN, SNMP. Vendors: - Cisco (Switch,Router, ASA,PIX); - 3COM (Switch) - RAD (PDH multiplexers, wireless WAN products). - Lucent/Avaya (wireless products) OS FreeBSD, Linux: - Dynamic routing protocols - RIP, OSPF, BGP (zebra, cisco) - Apache WEB server. - PostgreSQL, MySQL SQL servers. - Mail system: SMTP, IMAP, POP3 - Squid Proxy server. - bind DNS server. - FTP. - WAN. - FIREWALL (ipfw, iptables, pf, ipfilter) - NAT Network monitoring systems: AdvantNet OpManager, Zabbix, Nagios, HP OV NNM. Programming languages: C, Shell, Perl, Expect.

    $13.33 /hr
    16 hours
    5.00
  3. Troy M.

    Troy M.

    Programmer / Developer

    United States - Last active: 01/04/2011 - Tests: 7

    For the last 14 years I have been involved in various projects based online. These have included developing multiple websites, administering dozens of web servers at a time, installing and creating software for servers and personal computers and managing day to day operations for those companies. I have extensive knowledge in many areas including HTML, Perl, PHP, Javascript, Ajax, MySQL, Linux, FreeBSD, CentOS, Asterisk, Windows, MacOS, iPhone, iOS and countless other softwares.

    $20.00 /hr
    25 hours
    5.00
  4. Satyam Gupta

    Satyam Gupta

    Software Engineer | Tester | Customer Support | Data Management | VA

    India - Last active: 4 months ago - Tests: 1

    I am a Sr. Software Engineer and Support Executive. I am working as a freelancer programmer from last 6 Years. I Have good command on dot net, Java and testing web and windows Application using testing tools such as Visual Test, Test Complete, Test center etc. I have a good experience of Leading team of 5- 8 members and good communication skills. I have a good experience of providing Technical support/Customer support/ Help-desk support.

    $10.00 /hr
    14 hours
    5.00
  5. Jeremy N.

    Jeremy N.

    Developer

    United States - Last active: 06/25/2014 - Tests: 7

    English speaking American who can give you the results you want within your budget. For the last 7 years I have been developing programs that have had high volume exposure and high volume use. HTML for 5 years CSS for 2 years PHP & MYSQL for 2 years. Experienced in OOP, software design and testing.

    $22.22 /hr
    307 hours
    4.82
  6. Leonard B.

    Leonard B.

    Audio/Visual Web and Graphic Communications Expert

    United States - Last active: 11/01/2014 - Tests: 4 - Portfolio: 12

    Receiving both an Associate's Certificate along with Dean's list and honors for perfect attendance and 4.0 grade average for completion of Institute of Technology's nine month Web and Graphics Design course with specific training in Photoshop, Illustrator, Flash and Dreamweaver, I now am ready to interface with clients in the United States and abroad helping to provide audio/visual communication and marketing solutions to help make your growing business a success while continuing to challenge my abilities and continue expanding my knowledge as an effective designer.

    $27.78 /hr
    15 hours
    5.00
  7. Naveed Quadri

    Naveed Quadri

    Networking Engineer/Writer

    India - Last active: 4 months ago - Tests: 4

    • Expertise in deploying RIP, OSPF, EIGRP, BGP. Configuring redistribution, Route Filtering using Distribute Lists and Prefix Lists. Experience in configuring Frame-Relay at the Customer Edge. • Expertise in deploying LAN and configuring L-2 parameters like STP, RSTP, MST, Ether Channels, Switch Security, DOT1X Authentication, VLAN Access Maps, • Experience in configuring Cisco routers (26xx, 36xx, 37xx and 1800). • Experience in configuring Cisco switches (2950, 3550, 3560 and 4500). • Implementation of Network Security through ASA/Firewall. Configuring deep packet inspection, Failover, SLA Monitoring, Interface Redundancy and Translations on the Firewall. • Expertise in deploying threat detection and prevention by implementing and monitoring IDS/IPS. • Inspecting traffic by implementing Flexible Packet Matching (FPM). • Proven track record solving IP network issues in timely and cost efficient manner while maintaining client Service Level Agreements up-time. • Experience in managing devices, users and implementing policies through ACS. Customizing access by implementing Exec / Command Authorization and per – user VLAN assignment. • Expertise in deploying and troubleshooting VPNs (LAN-to-LAN, GET VPN, EzVPN and DMVPN). Article writing, creative writing, SEO, Email Handling and marketing, Proof reader, Web content writer and all types of writing source. Creativity and Originality at your door step.

    $16.67 /hr
    23 hours
    4.71
  8. Aliaksandr Pazhyvilka

    Aliaksandr Pazhyvilka

    Mr.

    Russia - Last active: 11/22/2013 - Tests: 2

    More than 4 years Experience on Oracle Database Server Administration. Oracle Certified Expert on RAC and SQL. Oracle Certified Professional (OCP). • Oracle Database administration 10gR2-11gR2 (RAC and non-RAC database) • Installation Oracle Software: Oracle Grid Control, Application Server, Clusterware, Grid Infrastructure, Weblogic. • Replication databases: Oracle Streams, Advanced Queuing, Golden Gate. • Configure/setup/plan for Recovery Manager (RMAN) Database backup and recovery, export/import, Data Pump Export/Import and flashback database. • Responsible for database optimization, performance tuning, and resolution of database performance issues. • Partitioning(Sub-partitioning), Compression. • Configure/setup Oracle Data Guard. • Advice and assist applications development staff and users on database solutions to technical problems, data architectures, database management system usage and capabilities, and the operation and tuning of databases to handle applications’ needs. • Apply Oracle patches and upgrades. • Network/System administration: Unix-Systems, WINDOWS: DNS, AD.

    $22.22 /hr
    243 hours
    5.00
  9. Eugeniy Ahmethanov

    Eugeniy Ahmethanov

    System administrator

    Russia - Last active: 3 months ago - Tests: 10 - Portfolio: 2

    Over the last 8 years, I have worked in several companies on implementing and supporting infrastructure solutions. Server software and services I used in my work: - OS: FreeBSD, Alt Linux, Fedora, Ubuntu, Win2k, 2k3, 2k8 - Virtualization platform: Xen Server, VMWare ESX, Hyper-V, Proxmox, OpenQRM. - Mail services: Postfix, sendmail, Kerio MS, MS Exchange - LDAP: Active Directory, OpenLDAP, 389 Directory Server - Proxy:Squid, ISA - Network services: DNS(bind9,MS DNS), WINS, DHCP, VPN and etc. - Databases: MySQL, FireBird, MSSQL - XMPP services: OpenFire, Jabberd - Software PBX: Trixbox, Asterisk, Elastix, CommuniGate - VideoConference: MS OCS 2k7R2, OpenMeetings - Scripting languages: VBScript, JavaScript, bash, Transact-SQL, PHP

    $15.00 /hr
    27 hours
    5.00
  10. Sergii Zakharov

    Sergii Zakharov

    Germany - Last active: 10/07/2014

    Self-motivated and hard-working software developer, initiative, flexible in solving problems, responsible, developer with approach to work. Enjoy working with the interesting and perspective projects. Have great experience in database development and work with large-scale database, experience in developing and integrating corporate solution for company, have a lot of skills in desktop development and server-side development.

    $23.00 /hr
    128 hours
    4.00