Senior Data Scientist
Firstsource
JOB DESCRIPTION Senior Data Scientist Speech, Voice & Conversational AI Apply Now Department: Data Science & AI Experience: 12 – 15 Years Role Overview We are seeking a highly experienced Senior Data Scientist – Speech, Voice & Conversational AI to lead the architecture, design, and delivery of next-generation voice and speech AI solutions. This role sits at the intersection of deep machine learning expertise and practical product engineering, driving end-to-end voice AI capabilities across Firstsource’s service lines. The ideal candidate brings 12–15 years of progressive experience in data science with a strong specialization in speech and voice technologies, along with hands-on expertise in Generative AI, Agentic AI frameworks, and modern voice pipeline tooling. You will act as a technical thought leader, shaping our voice AI strategy, mentoring teams, and collaborating with cross-functional stakeholders to deliver production-grade solutions at scale. Key Responsibilities Voice & Speech AI Architecture Design and own the end-to-end architecture for voice AI solutions including real-time speech-to-text (STT), text-to-speech (TTS), voice-to-voice, speaker diarization, emotion detection, and voice biometrics. Evaluate, benchmark, and integrate leading speech platforms and APIs such as Google Cloud Speech, Amazon Transcribe, Azure Speech Services, Whisper (OpenAI), Deepgram, AssemblyAI, ElevenLabs, and PlayHT. Build robust voice pipelines that handle noise cancellation, language identification, accent adaptation, and real-time streaming at production scale. Generative AI & Agentic AI Architect and deploy GenAI-powered conversational agents leveraging Large Language Models (LLMs) such as GPT-4, Claude, Gemini, and open-source alternatives (LLaMA, Mistral). Design Agentic
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