IT & Networking Administrators

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  1. Roman Yerin

    Roman Yerin Agency Contractor

    Web and VoIP(FreeSWITCH, WebRTC) engineer

    Russia - Last active: 4 days ago - Tests: 4 - Portfolio: 2

    I'm a skilled software developer and VoIP engineer with more than 15 years of experience. I'm also a full-stack developer of the convergent systems of voip and web. Playing with Freeswitch, Kazoo, SipXecs, Ruby, Perl, JS(node.js), C/C++ and much, much more - I'm always choosing tools for the task. Probably the most important thing which differs me from others - I'm never working just to gain money. I'm always doing my best to reach your goal the fastest way possible. If you've chosen a non-optimal solution I'll correct it and suggest a more efficient way. I'm never promising something that you're probably expecting to hear instead of the realistic estimate of your project. I'm never lying to my clients and I'm always giving all the information I have - transparently and on a regular basis. In one word - you can trust me as you trust yourself.

    Associated with: Coderunes

    $45.00 /hr
    540 hours
    4.82
  2. David Codesido

    David Codesido Agency Contractor

    Linux Systems Administrator

    Spain - Last active: 3 days ago - Tests: 3

    Over more than 15 years I've been a GNU/Linux fanatic while I was studying my Computing Science Engineering career. After that I have worked for 8 years as a Systems administrator and DevOps for an IPTV company. During these years I've mastered on server side administration oriented to web services and web backends (Tomcat, Nginx, Apache, Postgresql, MySQL) and with Cloud oriented services (CDNs, High Availability, Clustering). As part of my job I also have knowledge of a whole set of tools on GNU/Linux for debugging networking and OS issues and both Bash and Python good programming and scripting skills. As a result of my career tesis and years on IPTV, I have a deep understanding on video technologies, transcoding and streaming. As a DevOps I have a good understanding on software design and testing, customer relationships and project managing which gives me a new angle on approaching projects on time phocusing on customer satisfaction and Quality Assurance.

    Associated with: Treitos

    $33.33 /hr
    185 hours
    5.00
  3. Donovan D.

    Donovan D. Agency Contractor

    Experienced SalesForce Administrator/Developer

    United States - Last active: 12 days ago - Tests: 4

    I have worked with the SalesForce CRM for the past 5 years as a SalesForce Administrator as well as a Sales Operations Analyst. I have experience working with front end support and configuration as well as back-end development work. My skills include the following: - General Administration - Security Settings - User Role and Profile Administration - Data Management - Report and Dashboard Creation - Custom Object Creation - Apex Classes - Apex Triggers - Workflow Configuration - Customer Portal Setup - VisualForce Pages - Custom Controllers I have lots of experience using Dataloader with large amounts of data for mass updates or de-duplication. I also have experience designing and implementing projects to improve or automate a particular business process. I have created custom Apex Triggers and Classes to accomplish the businesses goal, but I prefer to use standard configurations for usability. I have worked in highly customized and more standard instances so I am able to speak to the best practices for both.

    Associated with: Callowhilll Developers

    $35.00 /hr
    336 hours
    4.92
  4. Alejandro Giraldo

    Alejandro Giraldo Agency Contractor

    CSS/jQuery/PHP/Joomla/Facebook/Wordpress/Drupal/Linux/CodeIgniter

    Colombia - Last active: 2 days ago - Tests: 1 - Portfolio: 8

    As a blogger and code lover I have tested and worked with a big and biggest CMS like wordpress, drpal , joomla , magento, and many others, taking the first one as part of my big portfolio and experiencie as u can corroborate with my experiencie. CSS/HTML/jQuery are part of my daily work and mixing this knowledge with wordpress and PHP, I am dispossed to create almost any challenge that client put to me and becoming it in a good product. Would be awesome to meet u and make a team to create very awesome things.

    Associated with: Permalink

    $44.44 /hr
    1,005 hours
    4.96
  5. Ilya Frolov

    Ilya Frolov

    System Administrator and Web Developer

    Russia - Last active: 5 months ago - Tests: 7 - Portfolio: 6

    I am java developer and linux system administrator. Have an interest in all kind of web based programming technology like python, ruby, perl. I have ability to create software from abstracts and fundamental algorithm design to deploying on production servers and zooming in business. I am interesting in java, open source, secure networking (SSL and so on), servers maintenance. Prefer full circle development - from idea to full production server support! I like to learn and follow the most modern technologies. I have 3+ year of shared web hosting design and service.

    $16.67 /hr
    77 hours
    5.00
  6. Sagun Joshi

    Sagun Joshi

    Database Consultant

    Nepal - Last active: 2 months ago - Tests: 7 - Portfolio: 4

    Over the last 11 years, I have developed no. of Software using Oracle, MS SQL, Access as a back-end and Visual Basic, Java as a front-end and Crystal Report and Data Report as a reporting tool. I also have excellent experience on Oracle Administration. Here are the details of my few recent Oracle experience: #. Currently working as a Oracle DBA Consultant. 1. D2Hawkeye Services (U.S. Based Company), currently involved as Oracle DBA training consultant. Provide Oracle DBA training and technical support(like performance issues, code samples, SQL tuning, Backup strategy, creating Server Managed Backup Scripts, etc) to the working staffs. 2. Midas Technology (Local Software Company, specialized in Hospital Management System and Colleges, Schools Software), currently involved as Oracle Consultant. Task performed so far from this organization: a. Oracle DBA training to the staffs. b. Oracle Database Server configuration at Manipal Hospital for peak performance. Configured Oracle Data Guard (Physical Stand-by Database). c. Successfully recovered the critical databases of Neuro Hospital, Whitehouse College and Teaching Hospital, Syakar Co. Ltd. (Largest Vehicle importer of the country), Himal Iron & Steel Industries due to Media Failure. (Note:, the databases at Whitehouse College and Himal Iron and Steel Industries were running in no- archive mode and the database was successfully recovered to the point of failure). d. Configuration and installation of Oracle RAC database at Dulikhel Hospital. Also configured for Oracle Data Gurad. e. Has done performance tuning in no. of critical databases. 3. Has done number of Oracle Database Server customization, configuration for small organizations. I also have a lots of training experience on MS SQL, Oracle, Java and Visual Basic since 2000. I have been providing training to the working professionals. Hear are the few organization, I have given training at: • Nepal Bank Ltd. • Nepal Telecom • D2Hawkeye Services (U.S. Based company) • Nepal Investment Bank • Nepal Agriculture Bank • Lumbini Bank • National College of Computer Studies • Manipal Medical College • Midas Software • Designco Software

    $33.33 /hr
    407 hours
    4.77
  7. Angel Torres

    Angel Torres

    GIS Developer / DBA / SysAdmin / Web Developer

    Mexico - Last active: 12/14/2014 - Tests: 2 - Portfolio: 5

    I am a GIS developer expert, using these technologies: Mapserver (maps on the fly), MapScript (PHP, Perl), PostGIS, Arcobjects. NET, GeoServer, GeoTools, GDAL and OGR, and OpenLayers, google maps api, leaflet. I use Front end Technologies such as JavaScript (jquery, require.js, backbone), Adobe Flex, HTML, and responsive framework Bootstrap I have developed applications using various technologies, for Desktop using vb.NET and Web Servers with Linux RHEL, CentOS, Slackware managing services and custom configuration as Apache, Tomcat, Database like PostgreSQL and MySQL, with programming languages ​​like PHP and Perl

    $19.00 /hr
    115 hours
    4.96
  8. Jim Keir

    Jim Keir

    OCP Oracle Database Administrator

    United Kingdom - Last active: 12/31/2014 - Tests: 4

    British expert in Oracle performance tuning. Multiple OCP certifications, 15+ years experience in the field as DBA and Consultant. SQL and PLSQL tuning, data structure recommendations, database healthchecks, server performance optimisation, Pro*C. Holistic approach to making your Oracle database faster. Spend a little on efficiency, save a lot on hardware.

    $66.67 /hr
    43 hours
    5.00
  9. Vitali K.

    Vitali K.

    Lotus Notes/BI/ETL/DWH/Qlikview Developer

    Belarus - Last active: 04/04/2013 - Tests: 1

    I have been developing software since 1999. My main skills in development technical specifications, design, development, testing, implementation, maintenance and support. I have developed: - geographic information systems in C/C++ (Planning systems electro-magnetic field, data visualization on maps) for MS Windows (MFC) & Unix (Motiff, Qt) for China & India goverment; - a wide range of applications with technologies Lotus Notes/Domino, Lotus Script, @Formula, X-Pages, Java, HTML, XSLT/XML and the integration of real-time databases Microsoft SQL and IBM DB2 for Ministry of Industry of Belarus, a transnational logistics company and educational organizations; - analytics reports with technologies Qliktech Qlikview & IBM Cognos. My development experience: SQL, OOP, UML (Rational Rose) and building a data warehouse based on data sources: Lotus Domino/DB2, MS Excel, MS Dynamics AX/MS Access/MS SQL, MySQL and text files. My maintance and support experience: MS Windows, Linux, Solaris, Lotus Domino, Oracle, DB2, MS SQL, Qlikview, Sametime.

    $27.78 /hr
    20 hours
    5.00
  10. Aleksandar Misic

    Aleksandar Misic

    Software developer

    Serbia - Last active: 06/05/2013 - Tests: 2

    Programming Skills - ASP.NET, ASP.NET Web Forms, ASP.NET MVC, ADO.NET, WPF, C#, VB, DynamicData Framework, Entity Framework, ASP AJAX, JavaScript, jQuery, jQueryMobile, SQL, LINQ, HTML, CSS Database Skills - MS SQL Server 2008/2005, Oracle 9i/10i, MySql, PostgreSQL/PostGIS Platforms - Windows XP/Vista/7 - Experience in developing various Web/Desktop based applications using ASP.NET Web Forms, Windows Presentation Foundation, Web Services with C# and VB.NET and JavaScript(jQuery). - Complete end-end management of a new website development project. - Proficient in web services concepts and Client/Server application, well acquainted with software development project lifecycle and different software development models. - Experience in using and manipulating ASP.NET Server controls like DataGrid, DataList, and Repeater. Good know-how in Data binding concepts in .NET. - Experience in ADO.NET Strongly typed DataSets, DataReaders, Transactions and good experience in creating, consuming and modifying Web Services using MS Visual Studio .NET. - Good database designing skills in SQL Server, SQL Queries, Stored Procedures. - Skilled in creating graphical user interface portion of Web/Desktop based applications with HTML5, CSS3, jQueryUI, jQueryMobile. - Knowledgeable in Responsive Web Deisgn techniques. - Experience in creating GIS applications(PostgreSQL/PostGIS, Openlayers.js, Geoserver, pgRouting).

    $5.56 /hr
    84 hours
    5.00