Other - Networking & Information Systems Professionals

Showing 3,029 freelancers

Other - Networking & Information Systems Professionals

Showing 3,029 freelancers

  • Senior Linux Administrator / Asterisk / VoIP / cPanel / Perl / BASH

    I am a senior technical engineer who has 10 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ … more

    I am a senior technical engineer who has 10 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery Asterisk/Trixbox/Elastix/VoIP solutions.  less

    linux-system-administration asterisk mysql cpanel whm centos samba apache-administration perl security nagios bash freepbx trixbox 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 4920 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • Systems and software specialist

    I like working on anything revolves around the IT ecosystem, and find the most fun in troubleshooting problems and working around strict requirements and deadlines. My peculiarity is discovering the root cause of a problem and working out the best … more

    I like working on anything revolves around the IT ecosystem, and find the most fun in troubleshooting problems and working around strict requirements and deadlines. My peculiarity is discovering the root cause of a problem and working out the best solution in a very short time. I'm a self-taught Linux systems administrator, full stack developer and jack of all trades in systems design and maintenance. I have experience in C and Python programming, software design and management, Linux and Solaris systems administration, and high expertise in maintaining and tuning MySQL databases. I also develop modern and rich web applications with HTML5, Javascript and AngularJS. Other interests in web design, typography and improving team processes and workflows.  less

    linux-system-administration python c go-programming-language javascript bash mysql html css ldap 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 689 HOURS
    • UNITED KINGDOM
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 8 TESTS
  • can't do is not an option

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin … more

    - Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - Web servers (apache, nginx, lighttpd), - Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), - Bulk marketing (Dkim, spf, high speed/inboxing, interspire, powermta,returnpath), - Automation (puppet, perl/shell/awk scripting), - Monitoring (nagios, zabbix,cacti), - Database Optimization,Replication (MySQL)  less

    mysql apache-administration lamp-administration postfix amazon-ec2 amazon-web-services squid nginx magento linux-system-administration performance-tuning load-balancing clustering haproxy centos 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 96 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • MCITP, MCSE, Virtualization, Network Engineer/Mangr, Writer

    Experienced Technology Leader, Implementation Manager, Change Agent and MCSE/MCITP. In-depth knowledge of IT systems and operations, project management, large-scale system implementations and information security with over twelve years with hands on experience as an Enterprise Administrator and Network Manager … more

    Experienced Technology Leader, Implementation Manager, Change Agent and MCSE/MCITP. In-depth knowledge of IT systems and operations, project management, large-scale system implementations and information security with over twelve years with hands on experience as an Enterprise Administrator and Network Manager in NT, 2000, 2003 and 2008 environments. Extensive experience in Server Virtualization including VMware and Hyper-V integrated with HP and EMC SANs. Practiced understanding of Exchange, Lync Server 2010, Fortigate UTM devices, Active Directory, PKI and DFS. Five years of experience as a corporate Microsoft/Certification trainer and serving as an MCSE/CCNAinstructor for technical schools, colleges and corporations such as AT&T; and Comcast Cable. I have created course curriculum for two online schools. I am extremely proficient in Server 2012 and 2008, including Server Core edition, Hyper-V, Fortinet, VMware, Procurve, HP and EMC SANs, Active Directory, Exchange, SQL, Procurve 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 a professional writer and have contributed to several white papers and authored published articles in professional journals. Have also written and reviewed test questions for IT professional certifications. I am looking for other opportunities to supplement my work load. My Microsoft Profile can be accessed by this link: http://www.mcpvirtualbusinesscard.com/VBCServer/brad.rudisail/profile For more information on me go to www.bradinthecloud.com  less

    virtualization security technical-documentation microsoft-active-directory technical-writing white-paper-writing windows-administration 00 more less
    • $36.94 HOURLY RATE
    • 4.8
    • 1765 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 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
    • 5260 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • Network / Cisco / Linux Administrator / Cloud Expert / AWS / DevOps

    Self-motivated professional with strong work ethic and productive self-starter – proven with success being a freelancer at oDesk. Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals Effective leader - Took over leadership and managed team resources … more

    Self-motivated professional with strong work ethic and productive self-starter – proven with success being a freelancer at oDesk. Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines 16+ years as an Systems Administrator 10+ years as Network Engineer 6+ years as Cloud Expert and SaaS Architect 3+ years @ DevOps Freelancer for last 5 years (over 20,000hrs worked @oDesk)  less

    amazon-ec2 perl python sql mysql unix-shell amazon-web-services postfix linux-system-administration network-administration network-security security cisco-routers cisco-asa firewalls vpn devops 00 more less
    • $55.56 HOURLY RATE
    • 4.9
    • 23083 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
  • GIS, Spatial Analysis, Biostatistics, R programming and Ecology

    I am a conservation biologist/ecologist with a lot of experience in GIS, Remote Sensing and Statistics. I really enjoy spatial modelling especially when it concerns conservation issues like Climate Change, Biodiversity or Habitat Loss. I am the co-founder of … more

    I am a conservation biologist/ecologist with a lot of experience in GIS, Remote Sensing and Statistics. I really enjoy spatial modelling especially when it concerns conservation issues like Climate Change, Biodiversity or Habitat Loss. I am the co-founder of a conservation organization named Cat Drop Foundation and I'm currently doing a PhD in natural resources and environment through the foundation and an external university.  less

    gis arcgis biostatistics r statistics data-analysis microsoft-excel environmental-science dutch digital-mapping 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 35 HOURS
    • NETHERLANDS
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 8 TESTS
  • Team Lead (Exchange Server+ActiveDirectory+PowerShell) Programer/Admin

    To complete challenging Software Development/ Server Administration tasks with my 7+ years of experience, mainly in Server programming, administration and configuration, with great expertise in Exchange Server 2007/2010/2013 and Active Directory, System programming\scripting Windows PowerShell and VBScript … more

    To complete challenging Software Development/ Server Administration tasks with my 7+ years of experience, mainly in Server programming, administration and configuration, with great expertise in Exchange Server 2007/2010/2013 and Active Directory, System programming\scripting Windows PowerShell and VBScript, Exchange Web Services API, Exchange Transport Agents\Exchange Transport SDK Office-365-exchange programming, Exchange Online, Exchange Server Multi-Tenancy (Address List Segregation, Address Book Policies) SharePoint Server (all versions), MS Dynamics CRM 4, BlackBerry Enterprise Server 4/5, Active Directory, Windows Automation SQL Server programming, C++\C# OOP programming, Asp.net Web Services, Http Web Client for Http Post etc. I have also great experience with Web| Hosting Control Panel programming and administration, specially in Exchange, ActiveDirecotry, BES, SharePoint, and DynamicCRM 4. I have created more than 200 scripts using PowerShell and VBScript. Software Development + Server Administration I Can work on C++,VC++.Net, COM, ActiveX, Win32 API, MFC, Multi threading, System Programming, C# .Net, Active Directory using .net Classes and ADSI , Exchange Web Services API, Exchange Transport Agents, Mail Server programming/administration (MS Exchange Server 2007/2010/2013 , Hosted Exchange 2010 SP1), Office-365-exchange programming, MS Dynamics CRM 4.0 programming and administration, SharePoint (WSS3, MOSS 2007, SP Server 2010) programming and administration, BES Server programming and administration, and Web Services. I also have experience of FTP Server programming/administration (Gene6FTP + ServU FTP Servers), Windows PowerShell API, WMI, XML, XML DOM using VC++ and C#, IVR programming using Intel Dialogic Telephony card, Global Call API, Voice API and VC++, WCF, and WPF, Web Control Panels and Asp.net. I have worked on many projects involving above mentioned Server technologies/programming Tools.I have trained junior programmers and our company's support department to manage Exchange Server 2007/2010/2013 , SharePoint (all versions), MS Dynamics CRM 4.0, BlackBerry Enterprise Server 4/5.0 and Active Directory. I have great experience with installation, configuration, management, and programming of these technologies.  less

    microsoft-exchange-server powershell ldap microsoft-visual-c++ windows-administration c# wcf vbscript windows-app-development 00 more less
    • $30.00 HOURLY RATE
    • 4.8
    • 605 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • WordPress Speed Optimization Wiz. I don't just Optimize, I Re-Energize

    Don't you feel frustrated when your favorite website takes too much time to load ! Well, your customers/clients feel the same when your website takes too much time to load. Fast site load speed is also an important factor … more

    Don't you feel frustrated when your favorite website takes too much time to load ! Well, your customers/clients feel the same when your website takes too much time to load. Fast site load speed is also an important factor behind securing high rank on Google SERP and I specialize in speeding up WordPress websites. It doesn't matters to me whether your site is hosted on cheap hosting servers or powerful dedicated servers. Over the last 10 years, I have developed a wide range of websites using WordPress / WordPress MU and WordPress Multisite. My core competency lies in complete WordPress Site Speed Optimization, Google Authorship, Google Webmaster Tools and Social Profile Management. I love WordPress and I love to make WordPress Super Fast on cheap hosting to dedicated servers. Know more about me and also understand the quality of my work by visiting www.markdescande.com  less

    wordpress google-plus website-development domain-migration cpanel whm seo mysql phpmyadmin firewalls 00 more less
    • $40.00 HOURLY RATE
    • 4.9
    • 1022 HOURS
    • SOUTH AFRICA
    • LAST ACTIVE
    • 127 PORTFOLIO ITEMS
    • 5 TESTS
  • .NET, C++, Ruby On Rails, PHP Expert with 16+ Years of experience

    OBJECTIVE To obtain a permanent or contract position as senior developer, system analytic. PROFESSIONAL SUMMARY Programming languages: C#, C, C++ PHP Ruby Javascripts Action Script Python HTML, DHTML Assembler x86, Visual Assembler (Win32) QBasic, MS Visual Basic for Application Turbo … more

    OBJECTIVE To obtain a permanent or contract position as senior developer, system analytic. PROFESSIONAL SUMMARY Programming languages: C#, C, C++ PHP Ruby Javascripts Action Script Python HTML, DHTML Assembler x86, Visual Assembler (Win32) QBasic, MS Visual Basic for Application Turbo Pascal, Borland Pascal, Object Pascal Java (Sun) Development frameworks: Ruby On Rails Microsoft Visual Studio x Borland C++ Builder 3,4,5,6,20xx Borland Delphi 2,3,4,5,6, 20xx DreamWeaver Visual Prolog TASM, MASM MS Access, MS Excel Allaire HomeSite Apache QT (Trolltech) Gtk+ Tcl/Tk Flash Flex Silverlight Operational systems: MS-DOS Windows XP, Vista, 7, 8 Linux, Unix Mac OS (X) Database servers: InterBase mySQL Advantage MS Access Oracle MSSQL Relevant Skills: Distributed database project development (C#, Delphi, Python) Create and normalize distributed databases Network programming (NetBIOS, Socks, WNetAPI, TCP-IP protocol, Datagram), FTP servers and clients Web-programming (HTML, DHTML, Javascripts, Java Applets, Python) Program interface designer, user-oriented Object-oriented software development Write technical documentation on complex projects for software developers and programmers Write drivers for Windows 9x,2000,XP Development AI systems by neural networks (C++) or facts (Prolog) Write translators, compilers (Lex, Bison) Development of multithread software (Java, C++, Delphi) ADDITIONAL INFORMATION Quick learner. Practice in complex projects. Coherency work in command. Programming length of service more than 15 years. Some of my Websites: http://www.justiceint.org.uk/ http://www.steelinternational.com.pk/ http://www.searchline.ca/ http://www.logisticsintelligence.co.uk/ http://www.deeya.co.uk/home.php http://www.clickproperty.com/web/home.aspx http://www.expertzoo.com http://www.cominfohost.com http://www.logisticsintelligence.co.uk http://www.langrc.com http://www.guidedways.com http://www.henna-mehndi.com http://www.beautynhealth.com.pk http://www.homedecordfw.com http://www.greatbritainregalia.com http://www.paksquash.com http://www.fpsc.gov.pk http://www.undp.org.pk and many others  less

    asp.net microsoft-silverlight c# .net-framework c++ php c win32-app-development qt gtk-programming delphi mysql python perl ruby unix-shell borland-c++-builder postgresql assembly-language x86-assembler driver-development microsoft-visual-basic microsoft-visual-studio objective-c iphone-app-development android-app-development mac-os-app-development linux-system-administration windows-administration 00 more less
    • $33.33 HOURLY RATE
    • 4.8
    • 5694 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
    GROUPS:
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