Network & System Administrators

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  1. Bogdan daniel S.

    Bogdan daniel S.

    VCP, MCSA, Exchange, Vmware, HyperV, Servers Expert Admin

    Romania - Last active: 19 hours ago - Tests: 8 - Portfolio: 1

    10+ years experience in Information Technology (IT) Major areas of expertise: VMware and Microsoft virtualization technologies. Designing and implementing fault-tolerant virtualization clusters SAN and NAS systems (iSCSI, FC) Windows 2003 / 2008 / 2012 Server * Active Directory * Microsoft ISA Server and TMG * Clustering * MS Windows XP/Vista/7/8 desktop/workstation operating systems * Centralized anitivirus systems WSUS * TCP/IP, Switching and Routing * Firewalls IBM, HP, Dell Servers * DNS, DHCP, Wins * Print Server * File Server * Network and Servers documentation * LAN hardware/software administration, design, installation and configuration * Print Server * LAMP Administration * Linux services : squid, postfix, dovecot, firewall, ldap, mysql, nagios, dhcp, bind etc Certifications: MCP - Microsoft Certified Professional MCSA - Microsoft Certified Systems Administrator VCP - Vmware Certified Professional VCP-510 * VCA-DCV - Vmware Certified Associate Data Center Virtualization.

    Groups: Microsoft Certified Professionals

    $22.22 /hr
    2,642 hours
    4.68
  2. Ioan alexandru T.

    Ioan alexandru T. Agency Contractor

    Network and System Engineer

    Romania - Last active: 1 day ago - Tests: 7 - Portfolio: 4

    I am an energetic, well-spoken and capable Network & System Administrator with expertise in Linux Server Administration and Network equipments. I enjoy working on all things IT related, and I have extensive experience of resolving Linux server problem and also network related problems. My key strengths include, but are not limited to: - WebServers: Nginx, Apache, Tomcat; - Databases: MySQL, MariaDB, CouchDB; - Mail Servers : Postfix, Dovecot, Qmail, DBMAIL; - FTP: Vsftpd, ProFTPD, Pure-FTPD; - VPN: OpenVPN, PPTP; - Firewall: csf, afp, custom iptables firewall; - Backup Solutions; - Proxy Servers; - Bash Shell Scripting; - Web Security (PHP Security php_suhosin, Apache Security mod_Security, OS Security (malware detection), Antivirus (clamav)); - - Traffic Control Scripts based on TC; - Monitor Technologies; - TCP/IP, VLANS, Routing Protocols - (RIP, EIGRP, OSPF) I have CCNA Certification and during time I had participate to online courses to improve my experience in Linux, Security, Firewalls. I will bring to your company or project fresh ideas, new perspectives, a diversity of experiences, and a dedication to service.

    Associated with: MoonQuake Agency

    $11.11 /hr
    2,586 hours
    5.00
  3. William Grzybowski

    William Grzybowski

    (Web)Development and Unix-like Consultant

    Brazil - Last active: 07/09/2014 - Tests: 7 - Portfolio: 2

    Before I even go to university i started working with Web-development. My first experience was about 6 years ago with pure HTML using frames in Dreamweaver 3. Since then I have worked hard to improve my skills in every way possible, not just as a web-developer but as a general programmer, and now I work essentially with Open Source software like Python(+Django), PHP, Linux/FreeBSD, PostgreSQL, etc.My degree in computer science helped me to understand the basics of a computer from the bits in the processor instructions to multimedia, and thus can be used everywhere to improve the final result of a project.

    $33.33 /hr
    3,500 hours
    5.00
  4. Boris A.

    15yr exp - Linux Systems Architect / ISP / IT Consultant

    United Kingdom - Last active: 6 days ago - Tests: 4 - Portfolio: 2

    Having been involved in: * gathering customer's requirements (type of applications deployed) * specifying (hardware) * deploying (software and hardware installation, including in data centers) * monitoring / profiling * management * providing adequate documentation in each stage (doc/pdf/Visio) of Linux-based systems, also managing small IT teams, looking for new challenging projects. * BIND and djbdns based DNS architectures; * Qmail / Exim / Postfix-based mail systems; * Websystems to include Apache / MySQL / PHP / Perl configurations; * MySQL - single servers, Master/Slave configurations or Master/Master; * Tomcat/Resin based Java application servers; * Nagios / MRTG / Cacti monitoring and data acquisition; * Design/development and modification of Perl / PHP-based web systems; Also extensive experience in deployment and management of server configurations in data centers.

    $35.00 /hr
    14,390 hours
    4.84
  5. Anshulee A. Agency Contractor

    Cloud Computing Specialist, .NET and Mobile platform Expert

    India - Last active: 3 months ago - Tests: 3

    I am the founder of Cennest Technologies. Cennest is envisaged as a software -based company focusing on solving business problems by using the best new technology ideas available. It is excites us to not just see trends around us but to realize that we are playing a role in advancing those trends. When the Amazon App store launched, we were involved, when the Samsung Galaxy Gear is being marketed, we are working on a solution around it, when Google Glass is being spoken of, people are coming to us to formulate their app ideas. Some of our strengths are:- 1) Early adapters of new technologies:- Windows 8, Windows Phone 8.1, Surface Apps, HTML5, CSS 3, Android, Azure, AWS,ASP.NET MVC 5/6, etc 2) Real time applications using WebSockets, SingnalR 3) Mobile App development:- Android, IOS ( Objective-c and Swift) 4) Extensive work in User Interface Intensive applications like WPF, Silverlight. Hands on in Blend as well as XAML 5) Expertise in Migrating existing applications/custom application development for Azure and AWS 6) Use of advanced design patterns to create generic frameworks for RAD 7) Expertise in Web based development using AJAX, jQuery, TypeScripting, Knockout.js, node.js etc SQL and OR Database storage and consumption using LINQ, OData, Entity Framework( Code First) etc 8) Extensible storage using Flat databases like Document DB, SimpleDB, Azure Table Storage, MongoDB . Scalable Relational Database using Elastic DB. 9)Office Business Applications 10) Automation Testing frameworks like Frank Test and Selenium

    Associated with: Cennest Technologies- Microsoft BizSpark Startup and Cloud Partners

    $27.78 /hr
    1,057 hours
    4.43
  6. Joan-Alexander Grigorov

    Joan-Alexander Grigorov

    OMG-Certified UML Professional

    Bulgaria - Last active: 6 days ago - Tests: 3 - Portfolio: 2

    Software Engineer over here! Domain-driven design enthusiast with passion for structuring flexible OO design with PHP. Certified as UML Professional (Fundamentals) by Object Management Group on December 2013. For the last 4 years I've been actively developing web applications using Zend Framework (since July 2012 I'm Zend Framework Certified Engineer). Expert in design patterns with over 4 years of professional experience. I'm developing enterprise web applications, file sharing systems, websites, web application frameworks, etc. Achieving high quality of code, good performance and reusable object-oriented software design is my primary goal when working. I don't underestimate documentation as my source code is always well documented, with end-user manuals when needed. In the last two years I've gained rich experience with Dependency Injection and Service Locators and successfully applied those approaches my projects. I'm always ready to learn new approaches, if they could make my work quicker and easier. I have experience in educating developers. I've been teaching students PHP, Zend Framework(basic and advanced levels), MySQL, jQuery, Design Patterns and etc. I'm seeking to develop big and complex web applications using the last technologies and software development methodologies.

    Groups: Zend Certified Engineers

    $20.00 /hr
    3,373 hours
    0.00