Network Administrators & Consultants

Showing 4,563 freelancers

Network Administrators & Consultants

Showing 4,563 freelancers

  • 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
    • 97 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Zendesk Expert

    I have been managing multiple Zendesk systems for almost 3 years. I have been involved in all stages of the Zendesk setup process. Process mapping, planning, implementation, testing, support and continues enhancement on the users experience in Zendesk. I am … more

    I have been managing multiple Zendesk systems for almost 3 years. I have been involved in all stages of the Zendesk setup process. Process mapping, planning, implementation, testing, support and continues enhancement on the users experience in Zendesk. I am very familiar in all aspects of Zendesk, the use of business rules to achieve the desired workflow, implement automations to increase productivity for agents, customize Zendesk using its built in functions and integrations. I am abreast with the latest Zendesk features, api, and integrations which allows me to be able to always find ways of implementing desired functionalities by being able to fully understand all aspects of Zendesk of what it can and it can't do. My core competency is ingenuity and creativity in terms of finding ways to make things work out for the client, hard working and fluent in communication.  less

    data-entry technical-support project-management customer-support administrative-support 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 8094 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 7 TESTS
  • 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
    • 1775 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    GROUPS:
  • I have experience in providing solutions in Higher education market. I have experience in developing and supporting MOOC systems for multiple customers and also provide customization for Canvas LMS, BigBlueButton open conference system and Kaltura open video platforms. I am … more

    I have experience in providing solutions in Higher education market. I have experience in developing and supporting MOOC systems for multiple customers and also provide customization for Canvas LMS, BigBlueButton open conference system and Kaltura open video platforms. I am currently working on Kuali rice and Kuali Student platforms and developing REST API based integration between Kuali Student Curriculum management system and Canvas LMS system to manage courses, program and Learning outscomes, etc. I am looking to for works related to education market, projects related to Alfresco documentation management system, Workflow Development using Activiti, Canvas LMS, BigBlueButton open conference system and Kaltura open video platforms, etc.  less

    ruby ruby-on-rails core-java 00 more less
    • $33.33 HOURLY RATE
    • 4.5
    • 10 HOURS
    • INDIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 2 TESTS
  • 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
    • 5329 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
    • 23235 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
  • Qualified Odesk Accountant, Financial expert and Excel expert

    Do you want automation in excel? Have you been bored making the same reports in excel? I have a solution that will completely automate your work in excel to just few clicks. Macros, vba coding are my specialities with study … more

    Do you want automation in excel? Have you been bored making the same reports in excel? I have a solution that will completely automate your work in excel to just few clicks. Macros, vba coding are my specialities with study back ground in finance. I have developed many customized applications in excel. If you want to change the way you work, Just message me! Thanks.  less

    financial-accounting accounting microsoft-excel microsoft-excel-powerpivot microsoft-word microsoft-powerpoint imacros-scripting css 00 more less
    • $10.00 HOURLY RATE
    • 4.6
    • 82 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 13 PORTFOLIO ITEMS
    • 6 TESTS
  • Ruby on Rails Developer and Consultant

    I'm seeking opportunities to build high-quality dynamic web solutions in Ruby on Rails. I've got a solid programming background with over 15 years experience. I'm a self-organized, disciplined and quality-oriented performer with good team management skills. A … more

    I'm seeking opportunities to build high-quality dynamic web solutions in Ruby on Rails. I've got a solid programming background with over 15 years experience. I'm a self-organized, disciplined and quality-oriented performer with good team management skills. A list of skills/features follows. * Passion for programming. * 15+ years overall development experience in 10+ languages. * 10+ years team leadership experience. * 10+ years Unix admin and TCP/IP networking experience. * 7+ years Ruby experience. * 5+ years Ruby on Rails experience. * Contributing to Ruby/Rails open source community (https://github.com/dadooda). * Clean, distinct, well-documented and reusable code is a *MUST*. * Solid understanding and everyday use of TDD (RSpec). * Strong JavaScript: raw language, jQuery, frameworks. * Everyday Git usage. * Practical programmer’s knowledge of HTML/CSS. * Hands-on experience of building high-traffic web applications in Unix environment (nginx, memcached, SQL server tuning, load testing tools, etc.). * 10+ years LAMP experience.  less

    ruby-on-rails unix-shell ruby tcp-ip amazon-web-services php javascript jquery css mysql linux-system-administration apache-administration nginx security vpn amazon-s3 amazon-ec2 firewalls postgresql c++ centos coffeescript 00 more less
    • $33.00 HOURLY RATE
    • 4.6
    • 2368 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 9 TESTS
  • IT Specialist

    Over last 12 years, based on my deep knowledge in software development and Windows operating systems, I've managed to become an expert in two fields: desktop applications development and windows based installers. Based on my achieved skills, I have … more

    Over last 12 years, based on my deep knowledge in software development and Windows operating systems, I've managed to become an expert in two fields: desktop applications development and windows based installers. Based on my achieved skills, I have developed a wide range of installers, from simple ones to more complexes such as installers for web applications. For desktop application development, I use Delphi which I used from Delphi 5 up to Delphi XE2; I have deep knowledge in building installers for windows, with great knowledge using Inno Setup, Windows Installer XML (WiX), InstallShield, Advanced Installer, Wise Installation Studio. I also have great experience in the following areas: SQL, HTML, PHP, software design and testing.  less

    delphi inno-setup wix installshield installer-development database-programming windows-administration c# 00 more less
    • $29.00 HOURLY RATE
    • 4.4
    • 583 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
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