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Sr. Voice SME / Developer

Tech Mahindra (Americas) Inc.Houston, TX🇺🇸United StatesPosted Sep 25, 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Houston, TX, United States
Posted
22 hours ago
MicroservicesNode.jsAWSAzureGoogle CloudJavaLLMPythonREST

Job Description

Voice SME / Developer

Location: Houston, TX (Onsite)

Key Responsibilities

  • Design and develop IVR call flows for inbound and outbound customer journeys.
  • Develop and deploy AI-powered Voice Bots for customer self-service and automated calling.
  • Build conversational workflows using ASR, TTS, NLU/LLMs, and dialogue management.
  • Develop integrations with REST APIs, webhooks, CRM systems, databases, and enterprise applications.
  • Design bot-to-human escalation while passing on the relevant customer and conversation context.
  • Troubleshoot SIP/telephony, API, webhook, call-flow, and voice-quality issues.
  • Monitor production IVR and voice-bot applications and resolve incidents.
  • Analyze call logs, transcripts, and bot performance to improve containment and customer experience.
  • Work closely with Product Managers, Solution Architects, QA, Telecom, and AI/ML teams.
  • Develop automated test scenarios for IVR and voice-bot journeys.
  • Ensure solutions comply with security, privacy, recording, and telecom requirements.

Required Technical Skills

  • 8+ years of experience in IVR, telephony, contact-center, or voice application development.
  • Hands-on experience with Exotel or comparable platforms such as Twilio, Amazon Connect, Genesys, NICE, Cisco, Five9, or Avaya.
  • Strong understanding of IVR, DTMF, PSTN, SIP, RTP, call routing, call recording, and call transfers.
  • Experience developing voice bots/conversational AI.
  • Practical knowledge of ASR, TTS, NLU, LLMs, prompt engineering, and conversation flows.
  • Strong programming skills in Python, Node.js, Java, or similar.
  • Experience with REST APIs, JSON, webhooks, databases, and microservices.
  • Experience in integrating voice platforms with CRM and backend systems.
  • Knowledge of cloud platforms such as AWS, Azure, or Google Cloud Platform.
  • Strong debugging, troubleshooting, and production-support skills.

Preferred Skills

  • Experience with OpenAI or other LLM-based voice agents.
  • Experience with real-time/streaming audio, WebRTC, streaming ASR/TTS, and low-latency voice applications.
  • Familiarity with Dialogflow, Amazon Lex, Rasa, Microsoft conversational platforms, or equivalent.

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