Network & System Administrators

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  1. Roman Gorokhov

    Roman Gorokhov

    Expert FreeBSD/Linux Administrator

    Spain - Last active: 14 hours ago - Tests: 6

    • 15+ year’s experience in the IT field. • Deadline conscious on all projects and assignments. Resolved IT related issues and concerns under strict deadlines. • Proactively implemented enterprise project deliverables at basic to intermediate levels. • Provided installation, configuration and maintenance of UNIX -based systems for different tasks: http, mail, ftp, dns, proxy, firewalls, smb, backup; web applications – from postfixadmin tо sugarcrm. BSD, Linux, Solaris, QNX. FreeBSD is my favorite. • FreeBSD Port contributor.

    $25.00 /hr
    111 hours
    4.82
  2. Andrey Semenischev

    Andrey Semenischev

    Expert in PHP coding and MySQL optimisation

    Russia - Last active: 1 day ago - Tests: 14

    I'm WEB programmer. I have more than 12 years expierence in site-creation field. I work with PHP, Smarty, MySQL, JS, HTML, Linux adminstration (httpd, mysqld, iptables etc.). I have developed and changed a wide range of websites and backend systems. I also have a rich experience in AJAX, OOP, software testing. Feel free to work.

    $38.89 /hr
    1,670 hours
    5.00
  3. Sergey Kogut

    Sergey Kogut

    Sr Windows and Linux Systems Admininstrator

    Ukraine - Last active: 1 day ago - Tests: 1

    Hello, I'm a System Administrator with 11+ years experience. I have worked earlier with hosting companies like hostpro.ua, 1gb.ua, hostclear.com, justhost.com and SingleHop.com. I've great experience with WordPress, cPanel/WHM, Plesk and server configuration (Bind, Postfix, Apache, MySQL, FTP and etc) + Virtualization OpenVZ Also I know CentOS and Ubuntu rather good (installation and configuration of software like ffmpeg, 3dproxy, Maldet, OpenVPN, Bugzilla and etc) Also I've a good experience with Nginx + PHP-FPM + Nginx Cache + Varnish Cache Currently I work remotely as a system/server administrator at RipaMedia Inc. I love my job and also I like to help people like you :)

    Groups: Bluehost Developers and Designers

    $22.22 /hr
    138 hours
    4.90
  4. Vladimir Mott

    Vladimir Mott

    Microsoft Exchange, Lync, & PowerShell Expert

    United States - Last active: 14 hours ago - Tests: 3

    Ex-Microsoft Senior Consultant with 15 years industry experience designing, deploying, securing and managing Microsoft Exchange, Lync, and Active Directory. Deep experience with multi-site deployments, Exchange Database Availability Groups, Lync Enterprise Voice,and hybrid Microsoft Office 365 deployments with SSO. Complex migrations to/from Exchange, Lync, and Office 365 are my specialty. Very experienced with complex hybrid / coexistence scenarios that require directory synchronization, federation, and custom PowerShell scripting. Excellent communication and problem-solving skills. I am based in California, USA. Technical Skills: - Exchange 2003/2007/2010/2013 - Lync 2010/2013 with Enterprise Voice - PowerShell Scripting - Office 365 - Forefront Identity Manager (FIM) - Active Directory - Windows Server 2003/2008/2012 R2 - Hyper-V - ADSI, LDAP, DNS, SMTP, TCP/IP

    $75.00 /hr
    530 hours
    5.00
  5. Don Blake

    Don Blake

    Virtualization / Citrix Expert

    United States - Last active: 2 days ago - Tests: 3

    Hi, my name is Don Blake, I am US-BASED and have been in the IT field for 17 years. During that time I have been a Senior Solution Architect for some of the big name consulting companies Architecting and Configuring solutions around VMware (View, vCloud, Site Recovery Manager), Citrix (XenDesktop, XenApp, Netscaler, PVS) and Microsoft (Hyper-V, System Center Suite, Exchange, AD, Sharepoint, many more). I have worked for Big Enterprise size companies to small start up companies. My expertise is in the Virtualization arena with knowledge ranging from Storage to Microsoft products. I not only like to help clients design and troubleshoot any issues, but also like to teach them the ins and outs so they understand what is happening. I am also very big into documentation and communication. I want to make sure you are comfortable and have more information than you need. Look forward to working with you. Specialties: VMware vSphere Design and Architect VMWare vCloud Design and Architect Citrix Xenapp Design and Architect Citrix XenDesktop Design and Architect Citrix XenServer Design and Architect VMWare View Design and Architect Microsoft System Center Design and Architect Microsoft Hyper-V Design and Architect Quest vWorkspace Design and Architect Microsoft Technologies

    $66.67 /hr
    171 hours
    5.00
  6. Andrew S.

    Andrew S.

    US-Based Microsoft and Citrix Systems Engineer

    United States - Last active: 22 days ago - Tests: 4

    I've been administering Microsoft-centric server infrastructure for the last 7 years, and have in-depth experience with design, deployment, repair and support of all Citrix, VMWare, RES, and many Microsoft technologies. My experiences range from server administration roles, specialized application support, desktop support, virtualization implementation and administration to advanced networking jobs. For the last three years I've also been working with Virtualization Consulting firms to design, build and support the following: -Citrix XenApp, XenDesktop, XenServer, NetScaler products -VMWare ESXi and View -RES Workspace Manager, Automation Manager, Orchestration/IT Store -Microsoft RDS, Server 2003-2012R2, Hyper-V I am confident I'll be a great asset to your project or organization, and look forward to working with you!

    $95.00 /hr
    470 hours
    4.93
  7. Valery Krukov

    Valery Krukov

    PHP, Symfony, ZendFramework Expert

    Ukraine - Last active: 19 days ago - Tests: 7 - Portfolio: 6

    I have 10+ years experience with PHP, MySQL, JavaScript (including jQuery and jQueryUI), CSS and HTML For the last 7 years I've been mostly focused on developing web applications based on PHP, AJAX/REST and MySQL/PostgreSQL Also i have about 5 years experience with WordPress and Magento programming -- themes, widgets and plugins

    $27.78 /hr
    48 hours
    5.00
  8. Eddie J.

    Eddie J.

    Developer

    United States - Last active: 1 day ago - Tests: 1

    Hello, I'm an expert level dev who is proficient with PHP, Flash AS2/AS3, and JavaScript. I have fundamental web skills in HTML, CSS, and also newer technology like JQuery and HTML5. I have some experience with Python, Ruby on Rails, and Unity3D. I have strong knowledge in a number of internet technology related fields like Linux systems, networking, and application interfaces. Most of my formal education is related to business, so I have strong communication skills and knowledge of money systems. Check out my company website onefoldmedia.com for examples of my work. I also have a resume available on request.

    $32.00 /hr
    1,637 hours
    4.99
  9. Yuliyan Tsvetkov

    Yuliyan Tsvetkov

    Advanced linux administrator and system automator

    Bulgaria - Last active: 5 days ago - Tests: 6 - Portfolio: 1

    In the world of 24/7 available services, giving to the customer best stable and optimized Linux environment is the primary role of every System Administrator, my role too. I've 5 years of experience in automation, installation and maintenance of Linux servers based on RHEL, CentOS, Fedora, Debian and Slackware distributions. Also I'm managing a lot of live servers for the biggest Telcos in the Middle east and Africa using new technologies, and also proven old ones.

    $22.22 /hr
    214 hours
    4.68
  10. Asif Gohar

    Asif Gohar

    System, Network, Active Directory, Exchange, Backupexec, System Center

    Bahrain - Last active: 1 month ago - Tests: 5 - Portfolio: 5

    Knowledgeable and skilled IT professional with encompassing work experience spanning more than 8 years in systems administration with compliance as per industry standards. Possess excellent interpersonal skills to liaise amicably with diverse groups of people, different departments, vendors and agencies. With extensive exposure to different cultures and work environments and has worked effectively with multinational individuals and professionals from all organizational levels. Certifications: MCITP (Server 2008, Exchange 2010, Lync 2010) Expertise: Exchange 2007/2010, Active Directory 2003/2008, SCCM, SCOM, DPM, SCVMM, BackupExec,Enterprise Vault, WSUS, Lync, Server 2003/2008, ADRMS, SQL Server, SAN/NAS.

    Groups: Microsoft Certified Professionals

    $20.00 /hr
    270 hours
    4.95