Asterisk Consultants & Developers

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Hire a skilled freelance Asterisk developer to build multi-protocol, real-time communications applications solutions for all your needs. Experienced Asterisk contractors can set up predictive dialers, call centers, VoIP gateways, conference servers, IP PBX systems and other applications.

Asterisk is a popular open source framework for building communications applications. The platform uses scripting languages to create business phone systems, conference bridges and other communications protocols and technologies. On Upwork, the world’s largest online workplace, companies hire Asterisk experts to handle all their communication needs.

Browse Asterisk job posts for project examples or post your job on Upwork for free!

Asterisk Job Cost Overview

Typical total cost of Upwork Asterisk projects based on completed and fixed-price jobs.

Upwork Asterisk Jobs Completed Quarterly

On average, 52 Asterisk projects are completed every quarter on Upwork.

52

Time to Complete Upwork Asterisk Jobs

Time needed to complete a Asterisk project on Upwork.

Average Asterisk Freelancer Feedback Score

Asterisk Upwork freelancers typically receive a client rating of 4.59.

4.59
Last updated: May 1, 2015
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  1. Duc To

    Duc To

    Extensive experience with VoIP, Desktop/Web/Mobile application

    Vietnam - Last active: 3 days ago - Tests: 1

    Thank you for viewing my profile! I am a full stack engineer and joined many projects as leader/manager in 7 years. I have deep experiences in enterprise systems from desktop/web/mobile applications to VoIP / Network infrastructure. I can mange whole project from getting customer’s requirement, feature and technical designing, configuring and maintenance, optimization and improvement suggestion. With 8 outstanding projects (good feedback and short working time) only at oDesk and many more others, I am the most suitable candidate for following specific jobs: - Enterprise VoIP and network system with load balancing and high availability requirement - Enterprise desktop / web / mobile application I am looking for clients that are seeking experience and quality candidate

    $25.00 /hr
    0 hours
    4.79
  2. David Knell

    David Knell

    Senior telecoms developer/CTO

    United States - Last active: 3 months ago - Tests: 2

    I've been developing software commercially for more than a quarter of a century, both as an employee of large organisations (IBM) and, to a greater extent, as my own boss. I've built and sold two businesses along the way, learning a great deal from having done so. My focus has been on telecoms. I developed TDM IVR systems based around Aculab and Dialogic cards in the late 1990s, and have, more recently, been involved in developing IP solutions using Asterisk, Kamailio and FreeSWITCH. These have included an IP Centrex platform (Asterisk and SER), a carrier-grade softswitch (FreeSWITCH) and various IVR solutions (Kamailio and FreeSWITCH). I'm fluent in a number of languages, including C, PHP, Perl, C# and Javascript, am happy to develop on Windows or Linux and have been using Agile development methods - in particular, release early and often - since before the term Agile was coined. I'm experienced with managing small teams of developers, and understand the importance of delivering the agreed product on time and within budget.

    $75.00 /hr
    3 hours
    5.00
  3. Paul M.

    Paul M.

    Expert software developer with 20 years experience

    United States - Last active: 1 day ago - Tests: 2 - Portfolio: 3

    Software developer with 20+ years experience. Many of these years in large telecommunication companies. Developed and project managed complex products. I am focused in a few areas. This focus and experience enables quicker turnaround for you. Expert in complex asterisk PBX setup for multi-extensions, multi-trunks, queues, hunt group, IVR. Expert in developing large distributed systems using Amazon AWS. Expert in Roku. Developed a highly popular Roku Channel (Details provided on request) Expert in web application including google map API, php, mysql, perl. Expert in AJAX style programming for web2. Expert in google earth integration and generation of kml files.

    Groups: LoginRadius

    $50.00 /hr
    69 hours
    4.86
  4. Luis Manuel Morales Colmenares

    Luis Manuel Morales Colmenares

    PENTAHO ETL & DATA Masking Specialist / IT Consulting

    Uruguay - Last active: 16 days ago - Tests: 2 - Portfolio: 2

    My name is Luis Manuel Morales. I’m Bachelor´s Degree in Computer Science from the Central University on Venezuela. At work I have more than twenty ( 20) years of experience in the IT world diversified into several areas: - Software Development, play the roles: Project Manager, Solution Architect , Senior Developer , DBA, Specialist Testing and Documentation Specialist. -Platform IT, play the roles: I have served as IT Manager , IT Coordinator and IT specialist ( specifically level platforms : Unix , Linux and Amazon AWS). -Quality assurance, ETL & Data Masking: play the roles : Coordinator and Project Leader for Data Masking , Designing ETL and Data Quality . My skills are aligned with developments as Leader WEB development using the various steps and concepts for software factories and level of management and project coordination . However i haver established experience as Senior Developer and IT Specialist , specializing in the following technologies: ETL, DATA MASKING, AMAZON (AWS, S3, EC2), LINUX, ASTERISK, HTML5, PHP, PERL, JSON ,RESTFUL, JAVA SCRIPT FRAMEWORKS (SENCHA EXTJS, JQUERY , EASYUI, DHTMLX), VOIP, SMS, Responsive Design (TWITTER BOOTSTRAP). DBA functions and support for databases: ORACLE, POSTGRES, MYSQL and MsSql. MVC (SMARTY TEMPLATES) and medium skills CMS (JOOMLA, WORPRESS). Control Version System (SUBVERSION, GIT, CSV). Project management tools (REDMINE, GANTTER, MSPROJECT, WBS-CHARTPRO, ENDEAVOUR). GENEXUS Developer (.net, java and smartdevices), System and developer for MOODLE Elearning platforms. My English level is good to write and average for conversation. My default language is Spanish and beginner level read/write of French. Objetive: - Data Security: ETL and Data Masking - CMS (Joomla or php based) - TV & Sports Media Software Integrator (Lyric Pro - Chyron & Deko) - Management Information Technology and Telecommunications. - Safety management logic (Systems and Telecommunications). - Management and Solutions Architecture Information Technology. - Planning, Development and Project Management. - Basesball and Sports Stats technologies Skills: - PHP. Level: Advanced, Years: 13+ - PERL. Level: Advanced, Years: 10+ - SQL. Level: Advanced, Years: 15+ - Linux. Level: Advanced, Years: 18+ - Postgres. Level: Advanced Admin and SQL, Years: 8+ - MySql. Level: Advanced Admin and SQL, Years: 12+ - Oracle. Level: Basic and SQL Advan, Years: 8+ - MSSQL. Level: Basic and SQL Advan, Years: 8+ - Asterisk. Level: Advanced, Years: 6+ - Pentaho. Level: Advanced, Years: 6+ - Data Masking. Level: Advanced, Years: 6+ - ETL. Level: Advanced, Years: 6+ - Unix Shell Scripting. Level: Medium, Years: 6 + - Subversion. Level: Basic, Years: 9+ - Java. Level: Basic, Years: 6+ My LinkedIn profile: http://ve.linkedin.com/in/lmmoralesc

    $16.67 /hr
    294 hours
    4.76
  5. Md. Riadul Islam

    Md. Riadul Islam

    Linux,Asterisk,DBA,Android,PHP,HTML5,MVC,C#.NET,PhoneGap 5+Years

    Bangladesh - Last active: 19 days ago - Tests: 16 - Portfolio: 5

    Working for last 5 years on Linux Server Management, DBA, C#,SQL,.NET , ASP , PHP, VOIP Soft switch and numerous criteria of computer science. Also build Mobile Apps for android, cross-platform apps. Strong working background on Database, Relational Algebra, Algorithms and Network Topology. Continuously looking for new technology and updates.

    Groups: Application Developers Alliance, AspDotNetStorefront

    $16.67 /hr
    2,639 hours
    5.00
  6. Ambika P.

    Ambika P.

    VoIP,SIP,Asterisk,FreeSwitch,Opensips,Kamailio, Linux,MySQL,PHP,Apache

    India - Last active: 2 days ago - Tests: 6 - Portfolio: 5

    Over the last 4.5 years, I have developed a wide range of IT solutions including VoIP, Web and Mobile development for small businesses and startup companies as well as for large companies. I have experience in VoIP, FreeSwitch, Opensips, Kamailio, Asterisk, FreePBX, A2billing, Linux, Opensource Consulting, MySQL, PHP, Joomla, Android, asp.net-mvc, c#, .net-framwork etc. I have developed class4-class5 Soft Switches, SIP Proxy, FAX Servers, Fax2mail, Fax over IP, Messaging Servers, Session Border Controllers, IVR application, Web Applications and many others. My core competency lies in complete end to end IT solutions for VoIP, Web and Mobile technologies.

    $25.00 /hr
    1,502 hours
    4.58
  7. Max Ivanov

    Max Ivanov

    Russia - Last active: 18 hours ago - Tests: 3

    My main principles are: result-oriented way of thinking, excellent technical base to solve any case, to talk human language with non-IT people, make software for people with neat look and clear UI. I am web developer with 15 years of experience programming PHP, different SQL flavors, Javascript, HTML, using related tools as PHP frameworks, jQuery, Prototypejs, content management systems, version control systems, graphic tools and Unix systems. I have proven experience in development for financial/insurance market. Also I am systems administrator with 15 years of experience managing networks, server infrastructures and data-center operations across multiple platforms (Unix, Linux, Windows) and vendors (Cisco, IBM, HP, 3Com, Avaya). Effectively plan, install, configure and optimize the IT infrastructure to consistently achieve high availability and performance.

    $30.00 /hr
    41 hours
    4.97
  8. Samir Nassar

    Samir Nassar

    iOS/Android/Xamarin/.NET/Asterisk Developer

    Germany - Last active: 18 hours ago - Tests: 9

    Great thanks for viewing my profile. I have 7 years experience in ANDROID, IOS and .NET developing. I have developed several smart type of MOBILE apps(20+) and WEBSITES(10+) using .NET. I can develop mobile app with NATIVE language or using XAMARIN. I have also lots of experience in other WEB SKILLs(HTML5/jQuery/CSS, PHP) and Database Administration(MySQL, Oracle, Sqlite) I also have full experience in Asterisk and softphone calling apps. The 5 things made me different from other oDesk contractors. 1. I feel I am the best fit for this job, because I am a team player, very energetic. 2. I’m an Expert, Honest, Sincere and Responsible worker as I’m taking my work like my Responsibility. 3. Great communication with my Clients.(via Skype, Google Talk, Yahoo Messenger or direct phone, email) 4. I love to juggle multiple tasks; will go the extra mile to get the job done. 5. 100% GURANTEED Satisfaction. Respectfully, Samir Nassar.

    $55.56 /hr
    1,079 hours
    4.92
  9. Damian Z.

    Damian Z. Agency Contractor

    Experienced Software Engineer

    United Kingdom - Last active: 01/11/2014 - Tests: 12

    ========= 1500+ oDesk Hours - Excellent feedback - Good oDesk tests results ========= Years of experience of C++ (STL, Boost) and C#, Java, Python and Android programming, digital video quality estimation, IPTV Software Development, Asterisk and A2Billing system configuration etc. Digital TV and IPTV Specialist. Cooperation with Video Quality Experts Group. Participation in big commercial project for public safety monitoring - INSIGMA. Working in IPTV, DVB. Specialist of VoIP domain. Experienced in configuring and administration of VoIP system based on Asterisk and A2Billing. Good knowledge of video streaming technology as well as protocols and codecs used in digital video transmission: H.264, MPEG2-TS, MJPEG, RTP, RTSP, IGMP, UDP, SDP. Very good practical knowledge of Linux operating system: Debian, Ubuntu, CentOS distributions Experience in developing Android applications Experience with installing, configure and maintain platforms based on Amazon Web Services (AWS): EC2, S3, RDS, SES, EBS, Elastic IP, Mechanical Turk GStreamer API Experience

    Associated with: XMementoIT Agency

    $35.56 /hr
    1,692 hours
    4.97
  10. Ahmed Halaby

    Ahmed Halaby Agency Contractor

    Expert PHP5/MySQL5/Wordpress/Joomla/MVC Senior Web Developer

    Egypt - Last active: 10/20/2014 - Tests: 2 - Portfolio: 5

    One of major things I've focused on in my career is to be a creative, effective. worked in web development for since 2001, developed and participated in the development of many open source, commercial frameworks and software's. i have a good knowledge of OOP, PHP4/PHP5, C, C++, C#, J2EE, J2ME, Perl, Linux, Bash, Awk, MySQL, SQLite3, Smarty templates, SVN, Apache, SMTP, POP3, IMAP, QMAIL and networking. At end.. ( I love what i am doing ) * I'm looking right now for a full time job for senior web developer :)

    Groups: Kohana, salesforce.com

    Associated with: OutsourcingWay.Com

    $22.22 /hr
    837 hours
    4.84