VoIP Developer
3yrs+
Best in industry
Remote only
Skills
Kamailio
Voice Over IP (VoIP)
C++COpenSIPS
FreeSWITCH
Asterisk
IMS
DIAMETER
About the Role:
We are looking for an experienced VoIP Developer to design, develop, and maintain enterprise communication systems. You will work with Kamailio, OpenSIPS, Freeswitch, and Asterisk to build scalable VoIP solutions.
Skills Required:
- Hands-on experience with Kamailio, OpenSIPS, Freeswitch, Asterisk
- Knowledge of IMS & Diameter
- Proficiency in C / C++ programming
- Strong understanding of TCP/IP, LAN/WAN, VLAN/L3 VPNs
- Good knowledge of SIP/SDP, RTP/SRTP, TLS protocols
- Experience with MySQL / MongoDB
- Understanding of Enterprise PBX features
- Problem-solving and debugging skills
- Good written and verbal communication
Nice-to-Have:
- Building softPBX, Voicemail, ACD, IVRS applications
- Experience with Python, PHP, Java, JavaScript
- Linux administration and command-line skills
- Knowledge of WebRTC, firewall, security
- Familiarity with tools like cmake and git
What We Offer:
- Remote / flexible work options
- Opportunity to work on large-scale VoIP systems
- Collaborative environment with skilled peers
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About Ecosmob Technologies
Founded :
2006
Type :
Services
Size :
100-1000
Stage :
Profitable
About
Ecosmob is a fast-growing global IT company delivering innovative and integrated business solutions across diverse industries. Specializing in VoIP systems, mobile applications, e-commerce platforms, and web development, Ecosmob leverages advanced technologies such as PHP, Node.js, WordPress, and Joomla to provide customized solutions tailored to client needs. The company has a proven track record of delivering complex projects on time, helping businesses enhance operational efficiency and customer engagement.
With a client-centric approach, Ecosmob also offers consulting, offshore development, and technical support services to ensure seamless business integration. Its portfolio includes projects like 911 Notification Systems, Asterisk Billing Solutions, PBX in USB, Web Click2Call, and Fax over IP, among others. Committed to excellence and innovation, Ecosmob continues to expand its global presence, helping businesses achieve measurable value through technology and domain expertise.
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What is it like to work at Ecosmob?
Ecosmob provides global IT solutions specializing in VoIP, mobile apps, e-commerce, and web development.
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