VoIP Consultants & Developers

Showing 232 freelancers

VoIP Consultants & Developers

Showing 232 freelancers

  • SQA/Testing/Security/Networks/Development/Technical Writing(Canada)

    Over my career I have been handed a great many challenges and I have throughly enjoyed finding solutions for my clients problems. I have not limited myself specifically to one area but many, and have enjoy a diverse technical career … more

    Over my career I have been handed a great many challenges and I have throughly enjoyed finding solutions for my clients problems. I have not limited myself specifically to one area but many, and have enjoy a diverse technical career. I am a skilled, hard working, dedicated IT professional with over 10 years of experience. I have development experince in numerous languages and specialize in PHP/MySql web development and Linux/Windows scripts and applications. I have excellent communication skills and am available at your need.  less

    php mysql joomla technical-writing jquery facebook-api twitter-api java erlang xmpp mobile-app-development wordpress selenium zend-framework linux-system-administration performance-testing software-testing project-management subversion node.js google-analytics .net-framework c++ css3 cppunit junit unit-testing automated-testing coldfusion 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 7546 HOURS
    • CANADA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 9 TESTS
    GROUPS:
  • Expert iPhone/iPad/Android/Blackberry/C#/ASP.Net Developer

    I have 6+ years of experience in mobile application development. Till now I developed 50+ iPhone/iPad/Android/Blackberry/Windows Mobile/Blackberry-Tablet apps. In addition to my development, I have more than 10 years experience of professional Web design/programming … more

    I have 6+ years of experience in mobile application development. Till now I developed 50+ iPhone/iPad/Android/Blackberry/Windows Mobile/Blackberry-Tablet apps. In addition to my development, I have more than 10 years experience of professional Web design/programming using ASP.Net, MS SQLServer, WPF, WCF, .Net Remoting, HTML, CSS, JSP, PHP, JavaScript, AJAX, JSON, RSS, MySQL, Web Services, API, Payment Gateway Integration. I am very fluent in Objective-C/Java /C# and C/C++ application development. I have made use of APIs of SNS(Facebook, Twitter etc.), Google Maps, GPS, In App Purchase, Dynamic contents update from web DB and more. The most important thing for me is a quick and quality work that the customer was satisfied. I specialize in making things intuitive, engaging and enjoyable. A prominent feature of my applications involves writing well organized code. I'm seeking opportunities to develop apps for you and your business.  less

    objective-c iphone-app-development android-app-development blackberry-jde windows-phone c# asp.net .net-remoting wpf wcf t-sql php cakephp amazon-web-services xml-web-services google-maps-api google-places-api c c++ java ios-development blackberry-app-development facebook-api twitter-api ipad-app-development cocoa-touch cocoa cocos2d multithreaded-programming soap ajax html5 uml microsoft-visio git svn tortoise-svn mac-os-app-development apple-xcode apple-uikit-framework twilio-api sql linq sqlite microsoft-visual-basic 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 1833 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 22 PORTFOLIO ITEMS
    • 5 TESTS
  • Senior Linux Administrator / Asterisk / VoIP / cPanel / Perl / BASH

    I am a senior technical engineer who has 10 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ … more

    I am a senior technical engineer who has 10 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery Asterisk/Trixbox/Elastix/VoIP solutions.  less

    linux-system-administration asterisk mysql cpanel whm centos samba apache-administration perl security nagios bash freepbx trixbox 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 4931 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • C/C++, Qt, Linux, Java and open source technologies medical engineer

    In my career; I developed many Projects based on open source technologies like Linux, Qt, MySQL, Java. Projects were mainly of a medical nature; ranging from embedded to desktop to web applications. What always interests me are embedded projects, projects … more

    In my career; I developed many Projects based on open source technologies like Linux, Qt, MySQL, Java. Projects were mainly of a medical nature; ranging from embedded to desktop to web applications. What always interests me are embedded projects, projects of complex functionality that adds emphasis on usability and user experience. Also Qt projects; I'm fascinated by this toolkit. Generally I have a good OOA&D; skills; UML and desgin patterns knowledge, and always like to read about different programming paradigms.  less

    c++ qt medical-informatics e-health medical-imaging medical-transcription 00 more less
    • $30.00 HOURLY RATE
    • 4.4
    • 3538 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 17 TESTS
  • Web Developer providing 100% quality projects on time. 8+ years exp

    Over the last 8 years, I have developed a wide range of iOS/Android Mobile Apps and websites using HMTL, DHTML, Ajax, Jquery, PHP, and MySQL including sites for startup companies and small/medium/large businesses. My core competency lies … more

    Over the last 8 years, I have developed a wide range of iOS/Android Mobile Apps and websites using HMTL, DHTML, Ajax, Jquery, PHP, and MySQL including sites for startup companies and small/medium/large businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, OOP, and software design and testing. I also have a team of dedicated professionals who are available round the clock to manage your work and i believe in prompt communication any emails sent me to me are replied within 30 mins during the business hours.  less

    php mysql jquery ajax ios-development android-app-development amazon-web-services amazon-ec2 core-java soap 00 more less
    • $7.78 HOURLY RATE
    • 4.7
    • 2056 HOURS
    • INDIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 1 TEST
  • Software Engineer( Php, Java , JS, ExtJs , Spring )

    To work as a part of a dynamic team where there will be opportunities to make significant contributions. The work environment should require innovations that would utilize my educational qualifications, capabilities and practical and professional experience. javascript - 6+ years ajax … more

    To work as a part of a dynamic team where there will be opportunities to make significant contributions. The work environment should require innovations that would utilize my educational qualifications, capabilities and practical and professional experience. javascript - 6+ years ajax - 6+ years extjs - 4+ years jquery - 5+ years angularjs - 2+ years node.js - 3+ years html - 6+ years css - 6+ years php - 6+ years java - 6+ years spring - 3+ years struts - 3+ years database - 6+ years  less

    extjs javascript jquery sencha php jsp java java-servlets-development css 00 more less
    • $22.22 HOURLY RATE
    • 4.8
    • 3408 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 11 PORTFOLIO ITEMS
    • 9 TESTS
  • Senior Developer on Android and iPhone

    Passionate to work in a work environment which not only provides me opportunities to apply my technical skills in most efficient manner but also help me flourish in my professional expertise. Has worked in consulting environment and implemented a multitude … more

    Passionate to work in a work environment which not only provides me opportunities to apply my technical skills in most efficient manner but also help me flourish in my professional expertise. Has worked in consulting environment and implemented a multitude of web solutions, for a number of clients, on time and on budget. I understand how work with hight loaded system, how find best solution for each task.  less

    iphone-app-development android-app-development phonegap cocoa-touch cocos2d corona-sdk 00 more less
    • $11.11 HOURLY RATE
    • 4.8
    • 2858 HOURS
    • INDIA
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • C, C++, Qt and Objective-C Developer

    I have over 8 year of development experience. Preffered languages C and C++, and cross-platform Qt framework for Windows and Linux. And Objective-C and xcode for OSX and iOS. Familiar with related technologies: networking, 2D and 3D graphics, database engines … more

    I have over 8 year of development experience. Preffered languages C and C++, and cross-platform Qt framework for Windows and Linux. And Objective-C and xcode for OSX and iOS. Familiar with related technologies: networking, 2D and 3D graphics, database engines, creating user interface, and more. I also know assembler and have some basic experience in disassembling. I was network administrator in the past. I was administer both Windows and Linux servers.  less

    c c++ objective-c opengl opengl-es ios-development apple-xcode mac-os-app-development qt microsoft-visual-c++ java html javascript nagios sql postgresql mysql apache-administration nginx squid unix-shell systems-development data-structures delphi iphone-app-development iphone-ui-design ipad-app-development ipad-ui-design game-development tcp-ip win32-app-development windows-app-development linux-system-administration 00 more less
    • $30.00 HOURLY RATE
    • 4.9
    • 2077 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 13 TESTS
  • Nicolay

    Over the last 14 years, I have developed a wide range of desktop and mobile applications using VC++, Objective-C, Visual Basic, C#, QT including software for video editing such as VideoCharge, Watermark Master, VideoCharge Studio and application for Mac OS … more

    Over the last 14 years, I have developed a wide range of desktop and mobile applications using VC++, Objective-C, Visual Basic, C#, QT including software for video editing such as VideoCharge, Watermark Master, VideoCharge Studio and application for Mac OS. My core competence lies in quick and qualitative development. I also have some experience in the following areas: HTML, PHP, ASP, SQL, JavaScript, Assembler, ATL, DirectShow, Cocos2d and software design and testing.  less

    c++ c microsoft-visual-c++ microsoft-visual-basic php asp javascript iphone-app-development sql mysql x86-assembler atl directshow windows-app-development apple-xcode cocoa cocoa-touch cocos2d mfc android-app-development project-management phpbb qt objective-c joomla 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 1267 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 24 PORTFOLIO ITEMS
    • 1 TEST
  • Erlang / Javascript Developer

    For the last 10 years I received a wide experience in different technologies and programming languages, worked on different projects from different areas and proved that I can bring the result. I worked as a team leader and as an … more

    For the last 10 years I received a wide experience in different technologies and programming languages, worked on different projects from different areas and proved that I can bring the result. I worked as a team leader and as an independent programmer and know how to do things right. My system administration experience helps me very much in my software developer's life, it gave me deep understanding how complex systems work and how they are managed.  less

    erlang javascript python jquery backbone-js django-framework postgresql mysql mongodb redis xmpp lisp 00 more less
    • $32.09 HOURLY RATE
    • 5.0
    • 3152 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
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