IT & Networking Administrators

Clear all filters
  1. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 4 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,738 hours
    5.00
  2. Bogdan daniel S.

    Bogdan daniel S.

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

    Romania - Last active: 1 day 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
    2,643 hours
    4.68
  3. Andriy M.

    Andriy M.

    Web Developer / Programmer / Wikipedia expert

    Ukraine - Last active: 1 day ago - Portfolio: 8

    I'm a programmer and Wikipedia expert. I create websites and develop software with Python/PHP/C. In love with sophisticated algorithms and problem solving. I have a degree in computer science (with emphasis on applied math), and I successfully completed one year of masters program in economics. I edit Wikipedia in my spare time as a long-standing hobby (10+ years), but I do paid consulting and article writing as well. Will be glad to help with your issues on this! Graphic design tasks can be done by my good friend. And he is great!

    $15.00 /hr
    1,029 hours
    4.94
  4. Amir M.

    Amir M.

    Senior Consultant, Developer & Architect.

    Egypt - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    Over 10 Years of experience development of which over 5 years of experience in Team management and consultancy. I have proven experience in building Web portals and applications in different business domains including Health, Banking, Shipping, Tourism, Education, Sales and others. I have two College degrees in Computer Science and Business; My working knowledge includes but not limited to Software Design, Software Architecture, System integration, Requirements Analysis, Requirements Writing, Android Development, IPhone Development, mobile Development (PhoneGap), Asp.net, MVC, .net,C#, VB.net, VB6, ASP Classic 3.0, .net 4.0, WCF, MSMQ, SQL Server, JQuery, JavaScript, BootStrap, SQL Server, SSIS, SSRS, MS Dynamics CRM 4, MS Dynamics CRM 2011

    Groups: Microsoft Certified Professionals

    $27.00 /hr
    3,204 hours
    5.00
  5. Ioan alexandru T.

    Ioan alexandru T. Agency Contractor

    Network and System Engineer

    Romania - Last active: 2 days 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
  6. Rashid Ali Khan

    Rashid Ali Khan Agency Contractor

    Senior Software Engineer (DOTNET)

    Pakistan - Last active: 1 day ago - Tests: 6

    I have been developing systems in .NET Technologies for last 7 years. I have participated in the development of both web and desktop based applications of variety of nature. I took part in the development of reporting module of a product named eTarget which is a CRM based application used by various clients in UK. I have also developed a utility which is currently in use for synchronizing the data of two databases to enable desktop application and website to work on the same data in parallel. I have also participated in the development of web based system for Pakistan Customs, which is currently in use, by using ASP.NET and SQL server 2005. I have mainly used C# and VB.NET as programming language, .NET as framework and SQL Server 2000/2005/2008 for databases. I can handle the projects which involves development in C#, VB.NET, ASP.NET and SQL Server 2005, 2008.

    Groups: AspDotNetStorefront

    Associated with: Raksoft

    $17.78 /hr
    9,154 hours
    4.98
  7. Orchille G.

    Orchille G. Agency Contractor

    IT Support

    New Zealand - Last active: 1 day ago - Tests: 2

    I am a IT support specialist with 3 years experience, including 5 years as a Technical/Customer service Phone Support and 2 years of Customer Service Supervisor, a role into which I was promoted. I have experienced on deployment support and maintenance desktop, laptop and phone units which includes and operating system, installed software (includes internal applications, software packages and client applications), hardware/Network and related peripherals. I am seeking opportunity to provide IT Realtime Support..

    Associated with: AGENCY

    $22.22 /hr
    4,950 hours
    5.00
  8. Max Khlystov

    Max Khlystov Agency Contractor

    Full-Stack Developer

    Russia - Last active: 1 day ago - Tests: 2 - Portfolio: 10

    Professional area: Project Management, Startups, ERP, IT Security, Banking Software, CRM Systems, Web Engineer, Software Development, API Development, Dev/Ops, High performance and High availability services. Key skills: - Python (Django, Flask) - Java (Spring, Play, Hibernate, Android) - PHP (Laravel 3-5, YII 1-2, CodeIgniter, Zend 1-2, Symfony, CakePHP) - JavaScript (jQuery, AngularJS, NodeJS, Backbone.js, Ajax) - Ruby (Rails 3-4, Sinatra) - SQL / NoSQL (Cassandra, Redis, Mongodb, MySQL, PostgreSQL) - C/C++ (Qt, Android NDK) Glad to join large, long-term projects. Always open to learn and start using new language / technology / API.

    Associated with: Techies

    $22.22 /hr
    1,013 hours
    4.87
  9. 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