IW
FreeSWITCH engineer
Info Way Solutions LLC
🇺🇸 United States
On-site
6 months ago
- VoIP
- CRM
- AI
- REST API
- Wireshark
- Tcpdump
- SIP
- RTP
- WebRTC
- Linux
- Unix
- Ubuntu
- CentOS
- TCP/IP
- DNS
- NAT
- Python
- JavaScript
- Bash
- Load Balancing
6 months ago
Location:Bay ARea,CA
Key Responsibilities
- Infrastructure Management: Design, configure, and maintain FreeSWITCH servers and VoIP gateways in multi-tenant and high-availability environments.
- Call Routing & Logic: Develop and optimize complexdialplans, IVR (Interactive Voice Response) systems, and Least Cost Routing (LCR) strategies.
- Integration: Connect FreeSWITCH with third-party APIs, CRMs, billing systems, and modern AI backends using theEvent Socket Library (ESL) or REST APIs.
- Performance Troubleshooting: Diagnose and resolve critical issues such as call drops, latency, jitter, and one-way audio using tools likeWireshark,sngrep, andtcpdump.
- Protocol Expertise: Manage signaling and media streams through deep knowledge ofSIP,RTP, andWebRTC protocols. [1,2,3,4]
Required Skills & Qualifications
- Technical Foundations:
- Platforms: Strong Linux/Unix system administration skills (specifically Ubuntu or CentOS).
- Networking: Understanding of TCP/IP, DNS, NAT traversal (STUN/TURN/ICE), and firewall configurations.
- Languages: Proficiency in scripting for automation and custom logic, typically usingLua,Python,JavaScript, orBash.
- Experience: Most roles require a minimum of 3–5 years of hands-on experience in a production environment.
- Preferred Tools: Familiarity with related open-source projects likeKamailio,OpenSIPS, orAsterisk is often highly valued for load balancing and proxying.
FreeSWITCH engineer · Info Way Solutions LLC