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. Ahmed Sayed

    Ahmed Sayed

    Senior Linux Administrator / Virtualization /Asterisk / VoIP / cPanel

    Egypt - Last active: 3 days ago - Tests: 7 - Portfolio: 1

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Proxmox Cluster Administration Asterisk/Trixbox/Elastix/VoIP architect Advanced Knowledge of shell scripting Advanced Knowledge of Perl programming Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ/ProxMox) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery

    $44.44 /hr
    6,891 hours
    5.00
  2. Samir Nassar

    Samir Nassar

    iOS/Android/Xamarin/.NET/Asterisk Developer

    Germany - Last active: 1 day 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
    1,111 hours
    4.92
  3. 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
  4. Md. Riadul Islam

    Md. Riadul Islam

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

    Bangladesh - Last active: 22 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
  5. Debasis B.

    Debasis B. Agency Contractor

    Critical Salesforce Automation & Customization, VoIP,Asterisk,Php,FM

    India - Last active: 4 days ago - Tests: 4 - Portfolio: 13

    Highly experienced expert designer and coder for new product development in Salesforce Apex and VisualForce, Force.com sites, VoIP, IVRs, SMS, Php-MySQL, Drupal, Netsuite, OpenERP, Amazon AWS, Amazon DynamoDB, Filemaker Pro and Cloud computing technologies. Creative problem solving ability for your complex apex, visualforce and siteforce requirements, who can elevate your organizations high-tech capability to the next level. Widely travelled in many countries including USA, Australia, UK, Europe, Asia Pacific countries on project implementations and thoroughly understand your global project outlook requirements. Have more than 17 years of commercial product development experience as Freelance Coder and remote development manager. Extensive experience in wide range of new commercial custom product development from inception primarily in VoIP, IVRs, SMS, mobile, Cloud ERP, Banking, B2B and B2C related sectors for diversed organizations situated in more than 10 countries. Lead complete IT development of US, UK and Australian companies. In-depth knowledge in Asterisk, Red5, C, C++, Php - MySQL, Perl, SIP, H.323, streaming video, premium IVRS and SMS applications, SalesForce and Force.com technologies, Apex coding, VisualForce, Netsuite cloud ERP, Drupal, FileMaker Pro 11, FileMaker Php, Quickbooks integration, AutoIT, Amazon EC2 based solutions, Ajax, jQuery & jQueryUI. My core competency lies in production level product development as top designer / programmer / developer from inception, and here I am seeking further such opportunities to design and develop professional, stable, bug-free products for your business.

    Groups: BoonEx, salesforce.com...

    Associated with: CloudLogics Agency

    $35.00 /hr
    5,778 hours
    5.00
  6. Ismir S.

    Ismir S.

    VoIP/Asterisk/FreePBX/Cisco/Linux Specialist

    Austria - Last active: 08/05/2013 - Tests: 5

    VoIP and network engineer/administrator with more than 6 years of experience in design, planning and implementation Unified Communication and IP centrex solutions, large scale telephone and Cisco data networks. Deep understanding of asterisk PBX, FreePBX, Elastix, SER and OpenSER/Kamailio SIP servers. Fluent in SIP, SS7, IAX, RTP, T38, ISDN, STUN, SDP, Ethernet, TCP/IP, DHCP protocols, Cisco routing (BGP, OSPF), switching, LAN, WAN, ACL, QoS, VLAN.

    $38.89 /hr
    1,059 hours
    4.96
  7. Yuriy N.

    Yuriy N. Agency Contractor

    Freeswitch/Asterisk/OpenSIPS/Kamailio/Linux/Network/VoIP Enthusiast

    Russia - Last active: 09/05/2014 - Tests: 1

    Telecom Software and Network Engineer more than 6th years in companies - communication providers. I have extensive experience with deploying a complete infrastructure of voip provider, using OpenSource telephony technologies such as freeswitch, asterisk, OpenSIPS\Kamailio, kazoo, etc. Mostly I'm dealing with emerging startups or with small but accomplished voip companies which want to improve\reorganize their infrastructure; create something new or fix some issue on their network. So it is main area but sure I can help with other projects that correspond to my list of skills.

    Associated with: Nasida

    $40.00 /hr
    1,118 hours
    4.97
  8. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 1 day ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,651 hours
    5.00
  9. Zhong W.

    Zhong W.

    Perl hacker and Voip Expert

    China - Last active: 10 days ago - Tests: 5

    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

    $27.78 /hr
    2,370 hours
    4.72
  10. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 3 days ago - Tests: 4 - Portfolio: 14

    Since 2001, I have been dedicatedly working with Linux Operating Systems & Open Source. Services Provided ::- Deployment, Configuration, Security, Hardening, Monitoring, Performance Tuning, Troubleshooting of Linux Server Roles AWS – Amazon Web Services Migration of Servers Hosting Panels like WHM/CPanel, Plesk etc Asterisk Dialers, VOIP and Call Center Solutions Customization of Linux Kernel & Distro with Rebranding Faculty of Post-Graduate Degree in Computer Sciences. Firewalls & Gateways Linux HPC - High Preformance Clusters Remote Server Support & Troubleshooting L3/L4 Security Auditing of Servers & Websites Cloud & Virtualization Technical Writing VPN - Site-to-Site, Road-warrior Vulnerability Assessment & Penetration Testing Kayako

    $16.67 /hr
    3,218 hours
    4.85