We’re Hiring | Senior System Engineer — VoIP Expert
Location: 6th of October
Company: ALKHWARIZMI.AI
Full-Time | On-Site
At ALKHWARIZMI.AI, we’re building cutting-edge AI solutions that are transforming how businesses interact with their customers 
We’re looking for a highly experienced Senior System Engineer — VoIP Expert to join our Infrastructure & Telephony team.
The ideal candidate must have a strong track record and hands-on production experience with:
Asterisk
FreePBX
FreeSWITCH
These are the core technologies for this role and are considered mandatory.
Key Responsibilities
Design, deploy, and maintain scalable VoIP systems
Build and optimize complex dialplans, IVRs, queues & routing logic
Troubleshoot SIP, RTP, codec & call-quality issues
Configure SIP trunks, SBCs & carrier interconnects
Integrate VoIP systems with CRMs, APIs & backend services
Implement VoIP security best practices and monitor system performance
Support high-availability and high-volume telephony environments
Requirements
5+ years of hands-on VoIP experience in production environments
Expert-level experience with Asterisk
Strong hands-on experience with FreePBX & FreeSWITCH
Strong Linux administration & server management skills
Deep understanding of SIP/RTP, NAT traversal & codecs
Strong troubleshooting and debugging skills
Experience with networking concepts including QoS, Firewalls & VLANs
Nice to Have
Experience with WebRTC
Kamailio or OpenSIPS experience
Automation & scripting experience
Experience with contact center platforms
Interested candidates can send their CV to: [email protected]