About the Role

We are looking for an experienced Dialer Engineer / SIP Engineer 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 robust 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

● 6+ yea

📌 Credgenics- Dialer Engineer/SIP Engineer (Noida)
🏢 NextHire
📍 Noida