Part Time
Asterisk Developer/ 3 days ago
PREETEL COMMUNICATIONS INC.
Attractive
Application ends: 2026-06-24
Quick Summary
PREETEL COMMUNICATIONS INC. is hiring a remote, part-time Asterisk Developer starting at $35.00 per hour. The role involves developing, configuring, and managing Asterisk-based VoIP solutions, custom AGI scripts, dial plans, and IVR solutions. Candidates need at least three years of experience with Asterisk PBX, FreePBX, or related VoIP platforms, alongside strong knowledge of SIP, RTP, WebRTC, Linux, and database/API integrations.
Job description
Role & responsibilities
- Develop, configure, and manage Asterisk-based VoIP solutions
- Implement and troubleshoot SIP, IAX2, PRI, and WebRTC connections
- Develop custom AGI scripts, dial plans, and IVR solutions
- Integrate Asterisk with CRM, databases, and third-party APIs
- Optimize call routing, failover mechanisms, and load balancing
- Monitor, debug, and enhance system performance for scalability and security
- Automate workflows and reporting using bash scripts, PHP, or Python
- Ensure high availability and disaster recovery solutions for Asterisk-based systems
- Provide technical support and documentation for deployed solutions
Preferred candidate profile
- 3+ years of experience in Asterisk PBX, FreePBX, or related VoIP platforms
- Strong understanding of SIP, RTP, WebRTC, and VoIP protocols
- Proficiency in AGI scripting, dial plan customization, and IVR development
- Experience with Linux (Ubuntu/CentOS), MySQL/PostgreSQL, and Bash scripting
- Knowledge of networking, firewalls, NAT traversal, and QoS for VoIP
- Hands-on experience with API integrations (REST, SOAP, WebSockets)
- Familiarity with VoIP security best practices
- Experience with Kamailio, OpenSIPS, or Freeswitch
- Knowledge of cloud-based VoIP solutions (AWS, Azure, GCP)
- Understanding of call center solutions like Vicidial, GoAutoDial
- Experience with AI-based voice recognition and text-to-speech engines
Pay: From $35.00 per hour
Work Location: Remote