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. 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
    4,653 hours
    5.00
  2. Ahmed Sayed

    Ahmed Sayed

    Senior Linux Administrator / Virtualization /Asterisk / VoIP / cPanel

    Egypt - Last active: 15 hours 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
    6,899 hours
    5.00
  3. Zhong W.

    Zhong W.

    Perl hacker and Voip Expert

    China - Last active: 11 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
  4. Diego Blanco

    Diego Blanco

    Linux Systems Administrator

    Spain - Last active: 15 hours ago - Tests: 7 - Portfolio: 3

    I'm an expert in GNU/Linux systems and other UNIX flavors. I have experience in CDN deployment, Cloud Computing, High Availability, Monitoring and Video Transcoding and Streaming. I've been working with GNU/Linux since I was 14, what makes more than 10 years of experience so I have a good background in its evolution, tools and administration. I also use to implement tools in shell script and python and I use to code my applications in python. In the last 6 years I've been working as systems administrator and Integrator for an IPTV company that offers streaming and web services. I directed projects regarding software distribution and upgrades automatization, product deployment architecture design and products monitorization. I co-designed and co-deployed the cloud computing platform for the company, its CDN with High Availability, its telephony system and other projects. I really like to learn new technologies, test its capabilities and see what can they do. I like to meet new people, work with them and share knowledge and opinions.

    $33.33 /hr
    625 hours
    4.92
  5. Kirill P.

    Kirill P.

    Asterisk Expert and System Administrator

    Russia - Last active: 4 days ago - Tests: 10

    I work on IT more than 12 years. VOIP/Asterisk Developer, Expert System Administrator and Network Administrator, Perl Programmer. Generally, I develop solutions based on Asterisk and speech technologies (speech synthesis and speech recognition systems), complex IVRs, integration with external sources and databases, custom click-to-call and callback systems, etc. I prefer custom development for Asterisk and FreeSWITCH. Usually, I use Perl for development. I have huge experience in solutions based on Asterisk such as FreePBX, Elastix, Trixbox, vicidial, etc. Also I support critical 24x7 systems, administration networks and servers, perform IT consulting, etc.

    $25.00 /hr
    10 hours
    5.00
  6. Sergo Sarkisian

    Sergo Sarkisian

    Linux , Cisco ,Vmware , Voip, firewall , security specialist

    Georgia - Last active: 17 days ago - Tests: 18

    I want to utilize my knowledge, skills and professional experience in order to contribute to the growth of the company I am working for whilst improving myself. SKILLS:network engineer ,system administrator(RedHat,CentOS,FreeBSD,OpenBSD,WIndows 2000,2003 server), cisco certified specialist(CCNA) Configuration of CISCO routers and switches,firewalls,servers:cisco 36xx,65xx, series,ASA firewall 55xx series, Implementation , configuration,design ,troubleshooting of basic routing protocols(BGP,EIGRP,RIP,OSPF,QoS,MPLS,HSRP,VRRP,GLBP) , Security: IPsec and many vpn solutions,certificate setup 1 Web servers - Apache 2.x,nginx,Squid proxy 2 Mail servers -Postfix,qmail ,sendmail,Mdaemon 3 FTP servers -WuFTPD,Vftpd 4 DNS –bind version 9 ,VPN (Openvpn, IPSEC implementation ) 5 DATABASES-Sql,mysql,postgresql,sqlite 6 LVM ,RAID(0,1,5,10) configuration 7 Experinece in network monitoring tools:Nagios,MRTG ,Cacti

    Groups: Bluehost Developers and Designers

    $20.00 /hr
    916 hours
    4.99
  7. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 15 hours 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
    3,229 hours
    4.85
  8. Suren Karapetyan

    Suren Karapetyan

    Senior System/Network Administrator (devops)

    Armenia - Last active: 15 hours ago - Tests: 8

    An ambitious *nix System and Network Administrator with eight years' experience working in ISPs and other service providers maintaining existing and designing new infrastructure. DevOps skills which help to bridge sysadmins' and developers' teams. Master's degree in Math Sciences. I'm looking for interesting projects which use new/young technologies and provide new challenges. Would also be great to work with interesting people.

    $35.56 /hr
    810 hours
    4.91
  9. Khizer Farooq

    Khizer Farooq

    Computer Systems and Network Engineer CCNA|MCSA|MCITP|OCP|ITIL|VMWARE

    Pakistan - Last active: 1 day ago - Tests: 13 - Portfolio: 12

    I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008),2012 different vendors Internet management and security solutions ( Hardware and software) like Air Live 802.11G Internet Access Server, Sonicwall,WatchGuard , ISA 2006 server, GFI Web Monitor, HP Servers, Client and server OS. Other than professional experience I have done Worked in following virtualization software's VMware ESXi 5.0-5.5 Microsoft Hyper-V, Sun/Oracle Virtual Box. Other than professional experience I have done different International Certifications CCNA. MCITP Windows7 Enterprise MCSA Windows 7 MCTS. | Windows 7 MCTS. | Windows 8 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange Server 2010 OCP( Oracle Sun Solaris OS 10 System Administrator) ITIL Foundation. VTSP 5 I have successfully completed following projects, that were for IT Govt Sector and five star Hotel's Planning Designing and Establishing Network Infrastructure using Microsoft Operational Framework (MOF v 4.0),network consisted of 200+ clients and 20 + servers (HP Proliant ML-150, ML-350,Dell Power Edge 2900). Installation configuration and management of ISA Server 2006,Juniper SSG 5 working together, providing security solution for more than 100 static and 200+ dynamic clients. Automate the process for Management of Internet User Account for the users by Implementation of RADIUS Server In-house developed Software Application Up gradation of clients systems from Windows XP to Windows 7 . Up gradation of domain from Server 2003 to server 2008 Enterprise R2 .

    $55.56 /hr
    595 hours
    4.95
  10. Vitaliy Nogin

    Vitaliy Nogin

    Linux, Cisco administrator

    Ukraine - Last active: 6 days ago - Tests: 1

    PROFESSIONAL EXPIRIENCE: EQUIPMENT: 1 Server hardware by IBM and HP, IBM-PC compatible. 2 CISCO switches and routers (800,1700,1800,2600,2800,3560,3600,3750,7200,etc series) 3 Intel switches. 4 Digital Super Hybrid Telephone Systems iDCS-500 and OfficeServ 7200 by Samsung 5 Zeroshell, 3Com, D-Link, Zyxel, MikroTik. OPERATING SYSTEMS: 1 UNIX, Linux, FreeBSD, Solaris 2 Microsoft Windows Server 2003/2008 NETWORK PROTOCOL: 1 HTTP, SNMP, SMTP, TELNET, FTP, SSH, SCP, SMB, NFS, DNS, NNTP, POP2/POP3, IMAP, UUCP, NIS, NFS, SOCKS5 etc. 2 SSL 3 RPC, NetBIOS 4 TCP, UDP, GRE 5 IP, BGP, OSPF, RIP, PPP, ICMP, ARP 6 Ethernet, X.25, Frame Relay, ISDN, MPLS, IEEE 802.11 PROGRAMMING LANGUAGES: Perl, bash, csh, awk, expect, PHP, Pascal, Delphi, C++, Visual Basic, HTML, Java

    $15.00 /hr
    0 hours
    4.91