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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, 59 Asterisk projects are completed every quarter on Upwork.

59

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 4.58.

4.58
Last updated: August 1, 2015
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  1. Robert M.

    Robert M.

    Networking/VoIP/Build/Test/SQA Professional

    United States - Last active: 9 days 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. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 1 day 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
    3,771 hours
    4.85
  3. Vlad M.

    Vlad M.

    Network Expert CCIE Cisco Juniper Brocade router switch firewall VoIP

    United States - Last active: 12/09/2011 - Tests: 6 - Portfolio: 1

    **Sr Network Engineer (Cisco CCIE, Juniper, Brocade,Foundry, Aruba)**, with 14 years of experience, located in San Francisco, California. Consulting services in the following **areas of my expertise:** Design, Planning, Configuration, Troubleshooting, Optimization, Review, Capacity Planning, Security Assessment, Documentation, Troubleshooting, Training, etc. **QUALIFICATIONS (Cisco, Foundry, Juniper, Wireless, Aruba)** **Network Engineer** (Cisco, Juniper, Foundry: CCIE, CCNP/CCDP/CCIP, CCSP, CCIP, JNCIS, FNCNE/FNCNP; CCNA-Voice; CCIE R&S;) **Network Security Engineer** (CCSP, Cisco Security/Firewall/VPN; CCSA/CCSE+, CISSP) **Wireless Network Engineer** (CWNA, CWSP, CWAP/CWNE) **System Engineer / System Administrator** (Windows, Unix) **SKILL SUMMARY **Expert in network design, implementation, and troubleshooting in Cisco and multi-vendor environments. Expert in all aspects of IP routing, switching, security and wireless technologies. **Core Technologies: **OSPF,BGP,EIGRP,RIP;MPLS,WAN,LAN,WLAN;L2:STP,RSTP,VRRP,HSRP;VPN,IPSec; QoS, VoIP,IPTel; 802.11 Wireless; Call Manager,CUCM, Asterisk **LAN, WAN, WLAN**: Multilayer IP networks with Cisco and multi-vendor routing and switching **Network Security and Wireless: **Cisco PIX, ASA, FWSM, VMS, CSM, ACS, RADIUS, TACACS+, SLB, IDS/IPS, VPN, PKI, SSL VPN, 802.1x Wireless 802.11 and wired multi-vendor security implementations **Hardware:** Cisco, Foundry/Brocade, Juniper/NetScreen, Aruba

    $50.00 /hr
    103 hours
    3.26
  4. Carlos Enrique Arango Patino

    Carlos Enrique Arango Patino

    System and Telecomunication Engineer

    Colombia - Last active: 1 day ago - Tests: 1

    Knowledge and experience like sysadmin and management GNU/Linux servers, networking, web hosting, DNS and firewall. Knows programming language: JAVA, PHP, Visual Basic. Database like MySQL and CMS like: Joomla and Wordpress Has experience with teaching and conference presentation. Intermediate language concepts with English and Signal Language.

    $16.67 /hr
    2,532 hours
    0.00
  5. Imran A.

    Imran A.

    Mr. Expert

    Pakistan - Last active: 4 days ago - Tests: 5 - Portfolio: 2

    Contact me for help in OpenStack, CloudStack, Software Defined Networking, Perl, Apache, PHP, Bash, NAGIOS, SCO Unix, Linux , Solaris. Asterisk, Juniper , Cisco, Mikrotik OS , Firewalls, SQUID, Spamassassin, SEO and others

    $18.00 /hr
    104 hours
    5.00
  6. Tewfik D.

    Tewfik D.

    IT Expert, Web developer, Linux Sysadmin

    Algeria - Last active: 9 days ago - Tests: 5 - Portfolio: 13

    Holding an Engineering Degree in Control & Automation, with 7+ years experience in the IT field, I am routinely dealing with web projects and embedded systems development. Specialized in Linux/Unix environments, committed to high-standards and a sense of responsibility, I will be happy to collaborate in web-services projects and server administration jobs.

    $16.67 /hr
    71 hours
    4.62
  7. Łukasz Dróżdż

    Łukasz Dróżdż

    NLP Scientist, Software Developer, Translator

    Poland - Last active: 22 days ago - Tests: 7 - Portfolio: 8

    Computational Linguist, Software and Database Developer with experience in a wide variety of scientific projects. Particularly interested in text mining and information retrieval technologies. Work experience in SQL database development, web scraping, web development. Freelance translator with experience in general and technical translation, software localisation, consecutive and simultaneous interpreting.

    $33.33 /hr
    675 hours
    5.00
  8. Shaila S.

    Shaila S.

    Web Research, Technical writing

    Bangladesh - Last active: 15 days ago - Tests: 3

    I am hard working, honest, self-motivated professional; experienced technical support representative and Helpdesk who welcomes challenges associated with driving performance, performance improvement and customer satisfaction. I am working as a core network engineer in an Wimax company.As I only work 8 hours a day 5 days a week ,i have plenty of time to work in upwork I can better serve you in following ways: • Install, configure, maintain and troubleshoot DNS, Web, Proxy, FTP and Centralized Syslog Servers. • Configure and maintain mail servers (postfix, sendmail, qmail). • Configure, maintain ,Adding extension with outbound number, Troubleshooting and report generating of Elastix Server & Asterisk (PBX) • Attack Mitigation: DNS Amplification Attacks, DDoS Attacks, Spamming; Capture & analyse internet traffic packets using Wireshark and other tools for troubleshooting/diagnosis purpose and problem resolution • IP Core Network: IPv6 planning & implementation, EGP protocol (BGP ), IGP protocol (OSPF, EIGRP, IS-IS), Load balance protocol (VRRP, HSRP), Firewall (Cisco ASA, Juniper NetScreen, SRX) • Working with bandwidth shaping tasks using MikroTik Routers and ET/BWMGR • Work extensively with VPN, Router, Switches, Firewalls and Intrusion Prevention Systems (IPSs). • Site-to-Site VPN establish & VPN over Wireless Network & fiber (GRE, IPSEC, SSL-VPN) • Infrastructure design for new clients according to their demand. HLD & LLD design of Network: Access, Distribution & Core layer • Configuring and maintenance Mikrotik Routers with Wi-Fi system. a. NAT, Port forward, Fault Tolerance, Application layer Filtering, Service Prioritization. b. Bandwidth Shaping, Declaring separate Queue both for management and other employee with different speed. c. Assigning no bandwidth limit for internal applications like Mail, CMS, Alepo, ERP, and website. d. Applying restriction for non-official application with IP and content based filtering. e. Site-restrictions with Scheduling.

    $3.33 /hr
    86 hours
    5.00
  9. Ahmed Qadeer

    Ahmed Qadeer

    Expert in Linux and Blog writing

    Pakistan - Last active: 13 days ago - Tests: 3 - Portfolio: 2

    I am working as Linux Administrator in a multi national firm for almost three years. My expertise include Apache, Mysql, PhP , Kannel, Nodejs, Asterisk, Opensips, VPS related issues. I have extensive experience in System Administration from Installation to deployment and maintenance using major open source softwares like Nagios, Monitorix, Monit, Cacti and Zabbix. I am very comfortable in working on Cpanel and SSH. Meanwhile I do blog writing as a hobby due to which I have been associated with "Uploadessays" for one year. My own Technical blog is easylinuxforeveryone.blogspot.com

    $12.00 /hr
    30 hours
    5.00
  10. Chris Rivas

    Chris Rivas

    Hosting Industry Sr Linux Admin w/ RHCE, RHCVA, MySQL DBA, developer

    United States - Last active: 11/18/2014 - Tests: 7 - Portfolio: 1

    For more than ten years I have worked extensively in the software development and hosting industries. I am an expert Linux and Unix system engineer, and can deploy and configure any software stack that is based on Linux for optimal content delivery. I excel at MySQL database design, optimization, and administration. I am a seasoned software developer and have extensive experience with many languages including Java, Python, PHP and Ruby. I also have significant experience with customizing, deploying, and adminstering open source web applications, application frameworks, and application servers. I have worked locally, overseas, and with colleagues and clients overseas via the internet. If you look at my work history here, you will note that i 'disappeared' in February 2011. Indeed I did disappear, I was in a very bad car accident in Bangkok, Thailand, where I was living at the time, and was nto able to get out of bed or use a phone or computer for roughly a month. I now reside in Austin, TX again full-time I do not disappear typically, my present and previous employers can confirm that if you are hesitant based on feedback from 2011.

    $36.67 /hr
    22 hours
    4.54