Senior Asterisk Architect & VoIP Infrastructure Lead

South Africa
Permanent
Full-time

14 days ago

Job SummaryLocation: Delhi India
Department: IT Infrastructure / Telephony
Reports To: CTO
Experience Required: 15+ Years
Employment Type: Full-TimePosition Summary:We are seeking a seasoned Asterisk Architect and VoIP Infrastructure Expert with over 15 years of hands-on experience in designing, implementing, and managing enterprise-grade telephony systems. The ideal candidate will have led the deployment of Asterisk-based PBX systems for contact centers exceeding 1,000 seats, with proven expertise in scalability, redundancy, performance tuning, and integrations with CRM, Dialers, and AI-based tools.Key Responsibilities:

Design & Architecture:

Architect and design high-availability, scalable, and secure Asterisk VoIP systems supporting 1,000+ concurrent agents across multiple geographies. * Deployment & Configuration:Lead deployment and configuration of Asterisk (and related modules like FreePBX, Vicidial, etc.), ensuring optimal performance and minimal downtime. * System Integration:Integrate Asterisk with third-party systems such as CRMs, ERP platforms, Dialers, Speech Analytics engines, and AI-based Agent Assist tools. * Monitoring & Optimization:Implement real-time monitoring, logging, call quality assessment, and performance optimization strategies. * SLA Management:Ensure system uptime meets 99.99% availability with built-in failover, disaster recovery, and load balancing capabilities. * Security & Compliance:Implement strong security protocols (SIP TLS, SRTP, firewalls) and ensure compliance with regional telecom and data protection regulations. * Leadership & Mentorship:Lead a team of VoIP engineers and provide training, SOPs, and escalation handling support. * Documentation & Reporting:Maintain up-to-date technical documentation, system diagrams, change logs, and capacity planning reports.Required Skills & Qualifications:

Minimum 15 years of experience in VoIP systems, with at least 10 years dedicated to Asterisk.
Experience in setting up and managing enterprise-scale environments (1000+ seats).
Deep understanding of SIP protocols, RTP, IAX2, dial plan scripting, AGI, AMI, and IVR design.
Strong knowledge of Linux (CentOS/Ubuntu), MySQL/PostgreSQL, and network administration.
Familiarity with load balancing, HAProxy, Kamailio/OpenSIPS, and clustering.
Proficiency in integrating telephony with REST APIs, CRMs (e.g., Salesforce, Zoho), and cloud platforms (AWS, Azure).
Experience with voice recording, call monitoring, reporting dashboards, and QoS metrics.
Exposure to contact center workflows, predictive dialers, blended campaigns, and CTI connectors.
Certifications in VoIP, Linux, or related technologies (optional but preferred).

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