Voice Engineer

We are looking for an experienced VoIP Developer who has deep expertise

in setting up and scaling VoIP-based contact center solutions using Asterisk or similar

technologies. The ideal candidate should have hands-on experience in building inbound and

outbound dialer systems from the ground up, with a strong grasp of SIP protocol, cloud

infrastructure, and telephony integration best practices.

Key Responsibilities :

• Dialer Setup & Architecture
• Design and implement scalable cloud-based inbound and outbound
• dialer architecture using Asterisk, Kamailio / OpenSIPS, and related tools.
• Lead the end-to-end setup of dialer systems including IVR,
• predictive / auto / manual dialing modes, and queue management.
• SIP & Telephony
• Deep understanding of SIP protocol, RTP, and VoIP call flows.
• Configure and troubleshoot SIP trunks, SBCs, media gateways, and NAT
• traversal issues.
• Optimize call routing, codec negotiation, DTMF handling, and failover.
• System Engineering
• Own the cloud deployment of dialer systems (AWS, GCP, or Azure) using
• containerization (Docker / Kubernetes preferred).
• Ensure high availability, performance monitoring, logging, and disaster
• recovery for dialer infrastructure.
• Collaborate with network and DevOps teams to fine-tune VoIP
• performance and reliability.
• Compliance & Quality
• Ensure the dialer adheres to compliance standards like DND, TRAI / DoT
• (India), TCPA (US), etc.
• Implement call recording, real-time monitoring, and post-call analytics
• systems.
• Development & Integration
• Work closely with backend and frontend developers to expose dialer
• APIs for CRM / agent dashboards.
• Integrate with third-party telephony platforms (Tata, Airtel, Twilio, Exotel,
• etc.) and CRM systems.
• Troubleshooting & RCA
• Perform in-depth debugging of call failures using PCAP traces, SIP logs,
• and Asterisk CLI.
• Provide root cause analysis and implement permanent fixes for recurring
• issues.

Requirements :

or similar VoIP systems.

issues.

infrastructure.

debuggers (sngrep, Wireshark).

(RabbitMQ / Kafka) is a plus.

scoring.

Preferred Qualifications :

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Skills Required

opensips, Wireshark, Nat, Sip Protocol, Linux System Administration, freeswitch, Kafka, Rtp, Rabbitmq, Shell Scripting, Mysql, Postgres, stun, Rest Apis, Webrtc, Asterisk