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. Robert M.

    Robert M.

    Networking/VoIP/Build/Test/SQA Professional

    United States - Last active: 1 day ago - Tests: 4 - Portfolio: 1

    I'm proficient in networking (Cisco - working on CCNA), operating systems (Linux, UNIX, Windows, MacOS and a few others) as well as Open Source PBX systems such as Asterisk, Trixbox, FreePBX, Elastix and PBXInAFlash. I have done extensive SQA (software testing) as well as scripting (bash) for administration of various servers. I can code in Python, PHP and some Java and Java Enterprise. I've worked extensively with Jenkins for build/deployment environments. I'm quite skilled with web application type servers, including Apache, Tomcat, JBoss, as well as various mail relays - Postfix and Sendmail. When it comes to security, I'm quite proficient at the command line with iptables as well as some open source type firewalls (Sonicwall). I am no stranger to packet analysis/sniffing a network with tools such as Wireshark, ettercap and nmap.

    $25.56 /hr
    118 hours
    4.60
  2. Igor Gamayunov

    Igor Gamayunov

    Software Architect and Developer

    Canada - Last active: 5 days ago - Tests: 1

    I have been developing Asterisk based telephony systems for more then 8 years and have very extensive, more than 18 years, Linux development experience. I have provided Asterisk and OpenSIPS cloud based solutions that comprise both back and front-end components and include complex dial-plans, IVRs and AGI scripts, in the following areas: - Hosted PBX applications - Conference bridge applications - Call Center applications - Intelligent Telephony load and stress test applications - Asterisk ARI - Asterisk WebRTC - REST API, OAuth 2.0 I have designed and developed Asterisk based Call Center system that is running on the AWS EC2 instances. This system is successfully integrated with the following platforms: - Proprietary CRMs - vTiger - Bigcommerce - Shopify - Nation Builder - NGP VAN I have very extensive customer support experience and good at writing user guides and developer API documentations. In addition I have a Project Management certificate.

    $38.89 /hr
    588 hours
    5.00
  3. Andrei V.

    Andrei V.

    Qualified Ruby-on-Rails Developer and System Administrator

    Moldova - Last active: 2 days ago - Tests: 8 - Portfolio: 3

    I work with Ruby-on-Rails framework for 3 years. I have deep knowledge of Ruby and full additional background. I have experience with a lot of most popular gems, like Devise, Kaminari, Paperclip and so on. Have experience in developing of API for differrent frontend. Have good knowledge of pure Javascript, and some JS frameworks like Jquery. I work with such single-page application framework like AngularJS. Also I work as system and network administrator more than 8 years. The main specialty is a server administration, Unix and Windows servers. I have a lot of experience in LAMP servers, mostly Debian-based: highload configurations(nginx + Apache), well optimized(Zend + eAccelerator), mail servers with antispam and antivirus detection(Postfix + SpamAssasin + Clamav), and many more things. Have really strong knowledge about routerOS (OS using on Mikrotik devices). I am working with them in last 6 years, and I used to work with version 2. Now it's stable version is 6. Routing, QOS, Mangling of traffic, bonding, trunking, VPN, using MT with Radius servers and many more things. I also have experience with VOIP-technologies: Asterisk as server, Audiocodes voip gateways, sip trunks, more than 40 clients, call-center organisations.

    $15.00 /hr
    224 hours
    4.94
  4. 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
  5. Roman Surikov

    Roman Surikov Agency Contractor

    PHP/MySQL Developer / Linux/Win Administrator / Project Manager

    Russia - Last active: 1 day ago - Tests: 16 - Portfolio: 7

    Over the last 8 years, I have developed a wide range of software. I provide full cycle of product development starting from design and completing to maintenance.

    Groups: Application Developers Alliance, Bluehost Developers and Designers

    Associated with: Ronas IT Agency

    $25.00 /hr
    16,833 hours
    4.98
  6. Syed Raza

    Syed Raza

    Linux / Unix / Clustreing / DBA/ Big Data / Asterisk & VOIP

    Pakistan - Last active: 7 days ago - Tests: 15 - Portfolio: 1

    "Have 5+ years Technical Experience over Major Unix/Linux Distro ( Debian, HP-UX11i, Solaris 8.0/10, AIX 5.X, 6.X, RedHat Enterprise Linux 3-5, Novell Enterprise Server, SLES 7), Virtualization (Xen, Citrix Xen, VBox, Vmware ESX, Solaris Zones and Containers, IBM LPARS/DLPARS/WAIO). High level hardware of P and i Servers from IBM and Sun SPARC T5220 Server Machines. Cloud Computing (Amazon EC2,S3,Cloud front, Elastic host, Linode, Rackspace) DNS, LAMP(Apache2,Cherokee,Nginx,lighthttpd) / J2EE ( Tomcat6, Jetty, GlassFish, Jboss, IBM Web Sphere Application Server), Streaming Server (Wowza/php based h264 Pseudo Streaming etc.) Load Balancers (Zend LB, Amazon ELB, HA-Proxy, Mysql-proxy). DataBase (Mysql, Oracle, Postgre, DB2, NOSQL etc). Inhouse Development Environment for Apple / Android / Windows Mobile and LAMP. Bug Tracking and ticketing System. Securing the Web, DB and Applications using open source tools and certifying PCI Compliance etc. Besides that i have experience of 130 Nodes Beowulf Cluster. My major expertise is on UNIX/ Linux based systems and Cloud Integrated with MS windows Environment and High Performance Machines and High Availability Systems. Planning, Designing and implementing DR SITE as Project and BCP as free-lance work with PCI Standard. Please review CV for Details"

    $22.22 /hr
    2 hours
    5.00
  7. Hank Huang

    Hank Huang Agency Contractor

    VoIP Consultant/Infrastructure Architect

    United States - Last active: 7 days ago - Tests: 2 - Portfolio: 3

    I am specialized in voice and data integration. Established monitoring platform for data centers with Nagios based tools. Integrate with graphs to collect historical metrics and application performances. Provide an easy to use interface for both the engineers and the infrastructure managers. I have experiences managing hundreds of Linux servers in large scale with a mixed environment of physical and virtual servers. Utilizing configuration management tools like Puppet, monitoring platform OMD (Nagios + Check_MK + Pnp4Nagios), and continues integration to ensure the highest quality service provided. List of my skills: DevOps Integration: Open Monitoring Distribution, Nagios, Check_MK, Puppet, Jenkins, Selenium WebDriver, PhantomJS, Sikuli automation VoIP: Asterisk, A2Billing, FreePBX, Trixbox, Elastix, PBX in a Flash, FreeSWITCH, Plivo, OpenSIPS, SwitchVox IP phones: Astra, Polycom, Linksys, Grandstream, Snom, Cisco, Yealink System Admin: RedHat Linux, CentOS Linux, Debian Linux, Ubuntu Linux, VPN, DNS, High Availability Open Source Server: Zimbra communication Suite, Redmine Project Management,Deki Wiki, OpenVZ virtualization, KVM virtualization Cloud Service: Amazon EC2, Amazon S3, VPS.NET, Linode, Racksapce, Digital Ocean

    Associated with: UniC Solution

    $55.56 /hr
    398 hours
    4.81
  8. Luong Thanh Phu

    Luong Thanh Phu Agency Contractor

    Delphi,Web.NET, PHP, RoR, C/C++, Android, IOS, VoIp, OpenCV

    Vietnam - Last active: 7 days ago - Tests: 17 - Portfolio: 9

    - I am programmer with over 15 years experience work in area IT software, Web development and Security network (All platform OS Window/Linux/MacOSX) - I am strong coding with languages programming (C/C++, Objective C, Java, Delphi/Pascal, Php/Perl/Python/Ruby, Javascript/Applescript/Shell script, C#/VB.NET. - Delphi Programming: (Component, RemoteObject, Fastreport, Report Builder, Raise report, dbExpress, dataSnap, network, Firemonkey, crossplatform IOS, MacOSX, Window) - GIT/SVN in tracking and manage source code - Developing and using well with frameworks, opensource from .net, WinSDK, Linux SDK, IOS SDK, Social API(facebook, google, dropbox..etc), OpenCV, Forge, Image Processing, DSP, OCR, gstream, phonegap, - Web developement: Php, ruby, python, perl, NodeJS. Framework: joomla, wordpress, yii, Zend, drupal, SugarCRM, vTigerCRM,,,..etc. - Mobile/Smart device and Embedded development: Android, Linux Embedded, IOS, Window Mobile Embedded, Window Phone - IDE and tools programming(Visual Studio, Delphi IDE - all version, eclipse, Qt Creator, Netbean - Database programming: MS SQL(2000,2008, 2012), MySQL, MongoDB, NoSQL, BigData, postgreSQL, Firebird, Oracle - VoIP development: Asterisk, Softphone, WebRTC, Freeswitch, OpenSips, Elastix, FreePBX, A2Billing, XMPP, OpenFire, Call Center I joined to developing and completed many large project. i will show to you all previous my works.

    Groups: Bluehost Developers and Designers, Crossrider...

    Associated with: KPT

    $15.56 /hr
    4,646 hours
    4.73
  9. Adeel A.

    Adeel A. Agency Contractor

    Web development with over 8 years of experience PHP and Ruby on Rails

    United States - Last active: 4 days ago - Tests: 2 - Portfolio: 3

    I have been working with PHP for the last eight years on many different projects. I also have extensive experience working with API's and all of the major social media platforms. Over the last five years I have expanded my knowledge base to include Ruby on Rails and mobile development. I also have a large team of seasoned developers to help out with larger projects.

    Associated with: Geeks Chicago

    $27.78 /hr
    11 hours
    4.83