- Experience
- 3–5 yrs
- Salary
- —
- Openings
- 1
- Posted
- 2 weeks ago
- Work mode
- Work from home
- Resume
- Required to apply
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Job description
Overview
Zentroverse Global Pvt. Ltd., a startup innovating in SaaS, CRM, AI-driven customer interaction, and business automation technologies, is seeking an experienced VoIP Engineer. This role focuses on building ZentroDIAL, a cloud-native IVR, autodialer, and contact center platform.
Key Duties
- Design and construct the cloud telephony framework for ZentroDIAL.
- Set up and maintain FreeSWITCH or Asterisk telephony servers.
- Integrate SIP trunk connections from Indian telecom providers.
- Develop inbound and outbound call handling systems.
- Configure IVR, call queues, and skill-based routing mechanisms.
- Implement various dialer strategies including preview, progressive, and power dialing.
- Assist in creating predictive dialer features.
- Embed WebRTC-based calling capabilities into the agent's web interface.
- Implement features such as call recording, call holding, transfers, and conferencing.
- Synchronize real-time call event data with the ZentroFLOW CRM system.
- Configure SIP routing agents like Kamailio or OpenSIPS, session border controllers, and ensure SIP security.
- Investigate issues such as call failures, one-way audio, latency, echo, and dropped calls.
- Track metrics related to call quality, channel concurrency, and telecom connectivity.
- Support telephony carrier failover mechanisms, scalability enhancements, and production rollouts.
Required Competencies
- Proven expertise in managing FreeSWITCH and/or Asterisk platforms.
- Comprehensive understanding of VoIP protocols such as SIP, RTP, and WebRTC.
- Experience integrating SIP trunks and IP-PBX systems.
- Familiarity with SIP-routing solutions including Kamailio or OpenSIPS.
- Skill in employing SIP.js or JsSIP for browser-based telephony.
- Knowledge of NAT traversal, TURN server (Coturn), firewall configurations, and audio codec handling.
- Experience with telephony features: IVR, call queues, recordings, and dialer systems.
- Competence working in Linux and cloud deployment contexts.
- Ability to use network troubleshooting tools like Wireshark, SIPp, and effectively debug SIP problems.
- Capability to integrate telephony systems with APIs, CRMs, and web apps.
Preferred Experience
- Prior involvement in building BPO or contact center platforms.
- Hands-on with progressive or predictive autodialers.
- Integration experience with major Indian telecom SIP trunk providers such as Airtel, Jio, Vi.
- Understanding of multi-tenant SaaS platform architecture.
- Knowledge of call-detail records, monitoring techniques, and voice analytics.
- Awareness of telecom security best practices and Indian commercial calling regulations.
About ZentroDIAL
ZentroDIAL is a cloud-agnostic, carrier-independent communication platform featuring cloud IVR, inbound/outbound contact center, agent browser calls, autodialing with campaign management, call recording and monitoring, supervisor dashboards, CRM integrations, and AI-enhanced call quality analytics.
Engagement & Location
This position can be full-time, part-time, or freelance with options for remote, hybrid, or Patna-based work.