Research Engineer - Voice & Language AI

Bengaluru · In-office · Individual Contributor

About GreyLabs AI
GreyLabs AI is building the voice operating system for India’s BFSI. Our Agentic Voice AI platform helps banks, insurers, NBFCs, and fintechs automate and humanise millions of customer conversations - across sales, collections, customer service, and compliance - in multiple Indian languages.
In under two years, we’ve scaled to 50+ enterprise clients, including RBL Bank, AU Small Finance Bank, IDFC FIRST Bank, SBI Life, ICICI Prudential Life, and Motilal Oswal - processing hundreds of millions of conversations. We raised ₹85 Crores in Series A funding led by Elevation Capital with Z47, and were recognised for “Best Use of AI in Fintech” at IFTA 2025.

The Role
This is a pure Individual Contributor role within our R&D; function, working across STT, LLM, and TTS systems. The mandate is the same one every research role here carries: close the distance between research and production.



You'll work directly with backend engineers to take your work from a working prototype to something running reliably in front of real customers, with the observability it needs to be trusted at enterprise scale.

What You'll Do
Improve STT/ASR transcription accuracy and reduce latency on specific domain and language targets, within multilingual, financial-services voice data
Fine-tune, evaluate, and deploy LLMs for defined BFSI tasks: information extraction, classification, summarisation, and compliance signal detection
Build and benchmark TTS improvements against product requirements - quality, naturalness, latency, integration fit
Extend and maintain our prompt engineering and RAG infrastructure for production LLM features
Work directly with backend engineers to take your research output from prototype to deployed, observable production feature
Run experiments and contribute improvements to our evaluation frameworks, so results are reproducible and tied to real product outcomes
Track

📌 Research Engineer (Bengaluru)
🏢 GreyLabs AI
📍 Bengaluru