Gnani.ai - VoIP Infrastructure Engineer - Asterisk

Description :

Location & Travel Requirements :

- Based in Bengaluru, working from company office

- Travel to client sites for on- premise integrations and deployments

Company Overview :

We power GenAI voice bots, real-time agent assist systems, and telephony integrations for enterprises at scale.

Our infrastructure integrates with multiple SIP/VoIP providers and processes live call media through our proprietary ASR, TTS, and LLM engines.

We operate in hybrid environments cloud, on-premise, and private data centers and offer end-to-end solutions for outbound calling, call center automation, and voice analytics.

We also engage with CPaaS platforms like Twilio and Genesys to support a wide range of customer needs across telecom and enterprise domains.

Experience :

- Deploy and manage VoIP platforms (Asterisk, Kamailio) and media relays (RTPengine); FreeSWITCH experience is a plus

- Terminate and manage media flows in company data centres, supporting AI-based voice processing

- Configure networking for call routing and NAT traversal in data centre and client environments

- Handle Linux server administration, containerization, patching, and automation

- Diagnose and debug real-time media issues using tools like Wireshark, sngrep, tcpdump

- Architect call routes, dial plans, load balancing, failover strategies across deployments

- Collaborate with engineering teams to integrate with platforms like Twilio and Genesys

- Document systems, network designs, call flows, deployment SOPs

- Travel to client on- site locations to perform installations, network setups, and hands-on support

Required Technical Skills :

- Proficient in Kamailio : NAT handling, registrar, dispatcher and SIP proxy logic

- Experience configuring RTPengine for media relay and NAT traversal

- Deep understanding of SIP protocol, SDP negotiation, RTP, call flows and signaling

- Advanced grid of computer networking: NAT, STUN/TURN, routing, subnetting, packet filtering, firewalls, load balancing

- Experience integrating with SIP providers (DID/toll-free channels through Twilio/Genesys or others)

- Strong Linux administration : Debian/Ubuntu/CentOS/RHEL; scripting (bash, python) for automation; monitoring

- Hands-on debugging experience with SIP/RTP diagnostics and trace tools

- Experience with SIP load testing using tools like SIPp

- Creation and management of observability dashboards using Prometheus and Grafana

Preferred/Bonus Skills :

- Docker and containerized deployment experience to manage VoIP stacks and services

- Exposure to cloud platforms (AWS, Azure, or GCP) for hybrid or scalable VoIP deployments

- Understanding of VoIP security (TLS, SRTP), SBC configuration, and QoS implementation

- Experience with SBCs and secure SIP peering

- Familiarity with traffic shaping, jitter buffering and SIP analytics platforms like Homer/SIPCAPTURE

- REST API integration for Twilio, Genesys, or other CPaaS systems

- Basic knowledge of databases like PostgreSQL or MongoDB

- Version control with Git and basic CI/CD automation tools

- Experience with Dialer or Call Center software such as Cisco or Genesys

- Experience configuring agent desktops over CTI integrations

Soft Skills & Communication :

- Proactive, detail- oriented mindset with strong problem-solving and analytical skills

- Ability to manage client expectations, lead on- site technical discussions, and produce clear documentation

- Team player comfortable working in fast- paced engineering culture

What Gnani Offers :

- Hands?on exposure to diverse SIP integrations and cloud/edge voice deployments

- Professional growth in a high-tech, rapidly scaling organization

- Occasional travel to client sites, providing exposure to field deploy