VoIP Consultants & Developers

Showing 7,930 freelancers

VoIP Consultants & Developers

Showing 7,930 freelancers

  • Perl hacker and Voip Expert

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting … more

    I have more than 6 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies. click here to know me more: https://click.2-call.me/apa1  less

    asterisk a2billing freeswitch perl linux-system-administration c++ 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 2192 HOURS
    • CHINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • IOS Developer, Netsuite Consultant, C#.Net Consultant, SQL Consultant

    6 Years in Software Development Over 3 years of Netsuite ERP, CRM, Website, Scripting Consulting. - Netsuite API (Server and Client), Webservices(PHP, JAVA, C#), Workflow - Reference Cart, Checkout Development, My Account, ShopFlow, customizations and development (from scratch and enhancements) - Netsuite … more

    6 Years in Software Development Over 3 years of Netsuite ERP, CRM, Website, Scripting Consulting. - Netsuite API (Server and Client), Webservices(PHP, JAVA, C#), Workflow - Reference Cart, Checkout Development, My Account, ShopFlow, customizations and development (from scratch and enhancements) - Netsuite Form Customizations, and others - Netsuite Implementation and Migration - Saved Searches - SEO Optimization - HTML Email template compatible for all mail servers - Website Template creation, SSP Applications. Javascript framework - backbone MVC, underscore, require, templates, common.js, bootstrap, jquery, JSON Over 2 and a half Years in C# development and support - WPF, Sharepoint, ASP.Net MVC 5 , Winforms Over 2 and a half Years of MS SQL development 1 Year in IOS development with 2 apps in the apps store Programming Skills - C#, C++, JAVA, SQL, TSQL, PLSQL, Javascript, JQuery, JSON, Lua, IOS3.5-7, PHP, CSS3, HTML5, Google API  less

    ios-development microsoft-visual-c++ c# netsuite-development javascript microsoft-sql-server-development 00 more less
    • $55.00 HOURLY RATE
    • 4.7
    • 1592 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 7 TESTS
    GROUPS:
  • AWS | EC2 | RDS | CloudFront | S3 | Chef | DevOP

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS … more

    Update: Recently, I've been focusing on delivering large scaling infrastructure using AWS and Chef. Also, I've really focused on delivering CI to developers to help really bring their products to market quickly and efficiently. Since training with AWS in 2011 this has been my passion. I've built backend infrastructure for mobile applications. I've built scalable e-commerce sites using magento, wordpress etc. Whether its augmenting current windows infrastructure, migrating servers to the cloud with VPN configurations. Or building a highly scalable multi-region infrastructure, I'm your guy. Please take a look at my portfolio, I've written several blog posts about building magento infrastructure, plesk installs, docker, among others.  less

    amazon-web-services amazon-ec2 amazon-s3 amazon-rds sw-configuration-management plesk ubuntu linux-system-administration devops 00 more less
    • $72.22 HOURLY RATE
    • 5.0
    • 132 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 1 TEST
  • Asterisk/PHP/MYSQL/Vicidial/FreePBX/Linux/Expert

    Extensive, practical and relevant industry experience in the following area : -> Asterisk and FreePBX customizations. -> Custom Asterisk Development (PHPAGI,Bash Scripting). -> Hosted PBX Solutions (Amazon AWS, DIgitalOcean, SolarVPS). -> Complex IVR Solutions (Databases Integrations, Web App Integration). -> Call Center Solutions (Vicidial,Goautodial … more

    Extensive, practical and relevant industry experience in the following area : -> Asterisk and FreePBX customizations. -> Custom Asterisk Development (PHPAGI,Bash Scripting). -> Hosted PBX Solutions (Amazon AWS, DIgitalOcean, SolarVPS). -> Complex IVR Solutions (Databases Integrations, Web App Integration). -> Call Center Solutions (Vicidial,Goautodial). -> Customized Broadcasting solutions. -> Technical Consultancy. -> Asterisk & MYSQL-PHP Integration. -> Asterisk Security (Fail2ban, IPTABLES). -> PHP&MYSQL Developer.  less

    asterisk mysql php linux-system-administration bash-shell-scripting javascript jquery ajax 00 more less
    • $35.00 HOURLY RATE
    • 5.0
    • 8 HOURS
    • DOMINICAN REPUBLIC
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 1 TEST
  • Certified Web/Software Architect with 10 years experience

    Experience : Experience in architecting and developing softwares for broad range of industries, including Building Management, Energy Management, etc. Have took part in many full SDLC projects and architected few Hybrid products. Well versed with the new paradigm shifts in programming … more

    Experience : Experience in architecting and developing softwares for broad range of industries, including Building Management, Energy Management, etc. Have took part in many full SDLC projects and architected few Hybrid products. Well versed with the new paradigm shifts in programming and sound knowledge and experience in system level programming , as well as application programming - especially cross platform complaint solutions. Good linux admin skills as well as automation of many process using scripts. Through knowledge and practical knowhow on scalable web applications as well as web databases. Designed many e-commerce related portals from scratch and made scalable and user friendly approach in the solutions. Have a good overlook on the various aspects of product development and product management and also took part in and contributed to many product marketing strategy building activities. Decade long experience with various technologies and platforms make me learn more and make myself better utilized in various solution architecting and managing activities. Certifications : Certified Software Architect - Carnegie Melon University Certified Green Belt - Six Sigma Engineer (Process) Certified Scrum Master - Scrum Alliance (Agile) Programming/Scripting Languages : C++, PHP, JAVA,JSP,PERL, JAVASCRIPT, HTML5 , CSS2&3, Frameworks/Tools Used : QT using C++, JPA2 - Hibernate, Spring web-mvc, Spring data, Spring security , Spring web flow, Code Igniter, CakePHP, jQuery ,Backbonejs , Underscorejs, Knockoutjs, WebRTC - peerjs, SASS, LESS , REST, SOAP , RTSP, ffmpeg videojs etc. Servers Used , Apache(for php and mysql), Apache Tomcat for java, Glassfish Planning tools used : JIRA , CONFLUENCE, TRELLO, ASANA, Basecamp, Balsamiq Databases - Relational => MySql - Oracle Databases - NoSql => {'Mongo'}, /CouchDb, Solr My Strengths : 1. Quick Learner 2.Perfection (Altruistic) 3. Business Perspective Presently doing partial user experience designing activities - user interviews, Mockups, Card Sorting, Information Architecture, Persona Creation. TRAININGS HTML5, CSS3 and Java Script Training from Microsoft Microsoft training in Win8 Mobile Application Development. Startup Engineering, Standford Unversity Hadoop & Big Data Analytics, Edureka Data Scientist, University of Washington Spring Training from VMWare Mostly online through skype and hangout.  less

    php c++ javascript c css ajax core-java jquery html5 magento opencart amazon-ec2 scrum objective-c wordpress tcp-ip amazon-web-services multithreaded-programming qt oscommerce jquery-mobile ecommerce-consulting payment-gateway-integration payment-processing authorize.net paypal-api api-development api-documentation facebook-api google-analytics google-apps adobe-photoshop linux-system-administration fedora linux-slackware freebsd solaris-administration virtualization embedded-c embedded-systems agile-software-development 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 672 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 15 TESTS
    ASSOCIATED WITH:
  • Certified ASP.NET Architect & Scrum Master

    Core Skills: * Excellent understanding of Software Development Life Cycle * Excellent understanding of the .NET 3.5, 4.0 Frameworks. * Excellent understanding of the ASP.NET MVC 3 Framework. * 7+ years of experience with MS-SQL 2005/2008 (stored procedures, table creation … more

    Core Skills: * Excellent understanding of Software Development Life Cycle * Excellent understanding of the .NET 3.5, 4.0 Frameworks. * Excellent understanding of the ASP.NET MVC 3 Framework. * 7+ years of experience with MS-SQL 2005/2008 (stored procedures, table creation) * Strong organizational skills and attention to detail. * Excellent knowledge of OOP principles and design patterns. * Excellent communication skills, both written and verbal. *Ability to think creatively, produce ideas, and recommend solutions that can be expressed visually and explained eloquently to project stakeholders * 7+ years of formal web application development in .NET (C#/VB.NET) * 7+ years of experience with ASP.NET * 3+ year of MVC development * 5+ years of formal experience with HTML, CSS, JavaScript, AJAX and browser compatibility issues  less

    asp.net c# mysql .net-framework html asp.net-mvc xml xhtml html5 sql linq microsoft-sql-ssrs ado.net telerik jquery javascript microsoft-silverlight entity-framework wcf windows-azure sql-azure linq-to-entities test-driven-development payment-gateway-integration architectural-design oracle-database ajax microsoft-visual-basic java jquery-mobile soap rest jsf eclipse java-servlets-development jsp jpa extjs css dts linq-to-sql devexpress asp database-design 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 12204 HOURS
    • INDIA
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • Top Certified iPhone/iPad and Android Apps develop

    4 years of strong development experience in iPhone and Android apps development. ============================================================ I am oDesk Certified mobile app developer, I have worked more than 1500 hours and delivered more than 30 well appreciated apps to my clients. I have Strong … more

    4 years of strong development experience in iPhone and Android apps development. ============================================================ I am oDesk Certified mobile app developer, I have worked more than 1500 hours and delivered more than 30 well appreciated apps to my clients. I have Strong experience in mobile app development and system integration like mobile or desktop application integration with remote server. My core skills and experience: # Objective-C, iPhone SDK, XCode, Cocoa, Cocoa Touch Frameworks. # Core Java, Eclips IDE, Android SDK, XML # Map Kit, GPS base user navigation and Tracking # Photo and Camera base app with many advance filers # Image processing in mobile apps, Image filters, Image Cropping and Image framing etc. # Web Server integration using JSON, SOAP, XML and REST Web Service APIs # SQLIte, Core Data and pList database design # Apple App Store and Google Play Store submission # FaceBook, Twitter, YouTube, Tumblr, Flickr, Instagram # Audio or Video streaming for Radio or TV base app # Push Notification, In App Purchase, iAD, AdMob # Source code repository in SVN, Version GitHub etc. Test Flight build etc. I am fluent in written and speaking in english and so client never feel any issue in discussion and requirements clarification. I am always reachable on Skype so client get the status update on any time during development and testing phase. I am looking for long term business relationship where I can utilize my skill set and provide the best quality work.  less

    c c++ objective-c cocoa-touch apple-xcode 00 more less
    • $25.00 HOURLY RATE
    • 4.5
    • 1037 HOURS
    • INDIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
  • Unified Communication and Contact Center Specialist

    I'm mastering on Cisco UCCX/UCCE, Unified Communication, Collaboration, Security, Wireless and Cisco Networking Products. I have CCNP, CCNP Voice and CCIE Voice Written. … more

    I'm mastering on Cisco UCCX/UCCE, Unified Communication, Collaboration, Security, Wireless and Cisco Networking Products. I have CCNP, CCNP Voice and CCIE Voice Written.  less

    network-planning cisco-voip cisco-routers cisco-ios cisco-asa 00 more less
    • $35.00 HOURLY RATE
    • 4.9
    • 33 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
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