Voice AI & Telephony Engineering

Experience

2–5 years

Role Overview

We are seeking a hands-on technical leader experienced in real-time voice, conversational AI, VoIP, and telephony systems.

The ideal candidate has experience with LiveKit, FreeSWITCH/Asterisk, SIP, GSM and SIP gateways, WebRTC, STT, TTS, LLM APIs, Python, and backend engineering.

Key Responsibilities

- Lead the design, development, and operation of voice and telephony systems.
- Design systems using LiveKit, FreeSWITCH/Asterisk, SIP/GSM gateways, WebRTC, and real-time audio.
- Integrate STT, TTS, LLM, and other AI APIs.
- Own call flows, routing, dialplans, session management, and gateway integrations.
- Troubleshoot SIP, VoIP, audio quality, latency, reliability, and concurrency issues.
- Analyze production data and implement permanent fixes.
- Design for scalability, low latency, reliability, and fault tolerance.
- Review code and architecture, mentor engineers, and establish best practices.
- Plan work, coordinate delivery, and support deployments and incidents.
- Establish monitoring, logging, alerting, and performance metrics.

Technical Requirements

Must Have

- 4–5 years of backend/software engineering experience.
- Solid Python, asyncio, concurrency, and event-driven systems knowledge.
- Experience building voicebots, conversational AI, or real-time voice applications.
- Strong SIP and VoIP knowledge.
- Experience with FreeSWITCH, Asterisk, or similar platforms.
- Experience with SIP/GSM gateways and LiveKit or similar frameworks.




- Understanding of WebRTC and real-time audio streaming.
- Experience integrating STT, TTS, and LLM APIs.
- Knowledge of REST, WebSockets, streaming APIs, retries, timeouts, and rate limiting.
- Strong Linux, Git, debugging, and production troubleshooting skills.
- Working knowledge of MySQL, PostgreSQL, or SQLite.

Leadership & Engineering Skills
- Ability to own systems from design through production support.
- Strong system design, debugging, and root-cause analysis skills.
- Ability to balance latency, scalability, reliability, and cost.
- Experience mentoring engineers and conducting code/design reviews.
- Ability to estimate, prioritize, and deliver work.
- Strong communication and collaboration skills.

Good to Have
- LiveKit Agents or similar frameworks.
- Advanced FreeSWITCH/Asterisk experience.
- Large-scale concurrent calling experience.
- Prometheus, Grafana, ELK/OpenSearch, Docker, cloud, or Kubernetes experience.
- Multilingual speech/NLP, automated testing, CI/CD, or provider cost optimization experience.

Ideal Candidate A hands-on technical leader who can design architecture, build core components, integrate AI and telephony, troubleshoot production issues, optimize performance, mentor the team, and own delivery. Experience with LiveKit, FreeSWITCH/Asterisk, SIP/GSM gateways, Python, and STT/TTS/LLM integration is preferred.

Pay: ₹25,000.00 - ₹30,000.00 per month

Application Question(s)

- Our office is situated in Bhratpur, Rajasthan. Are you currently based nearby or ready to relocate?

Work Location: In person

📌 AI/ML Engineer (Bharatpur)
🏢 Mediatechtemple
📍 Bharatpur