Naren Parashar

About Naren Parashar

Product Manager with 4+ years of experience across B2B and B2C. I\'ve worked at startups and growth-stage companies which means I\'ve had to wear multiple hats, from running customer interviews and writing detailed specs to working side by side with engineers on complex problems. I enjoy the full arc of building a product: figuring out the right problem to solve, deciding how to solve it, shipping it, and then learning from how people actually use it. Over the last couple of years I\'ve been deep in the AI space building products where the technology itself is still evolving, which keeps things interesting.

Experience

1. Ai Product Manager

   GreyLabs AI

   Nov 2025 — Present · Mumbai, IN

   Set up STT and TTS evaluation frameworks for Voice AI agents - selected STT vendors for all Indian regional languages based on Word-Error-Rate; right TTS vendor with which we power 450K+ talking minutes per month• Defined the procedure to scale Voice AI agents across Indian regional languages with optimal configurations, and built an evaluation layer on top which does complete speech analysis: Audio and text based analysis• Introduced automated Voice AI agent testing (LLM-as-judge): One LLM simulates a user, chats with the VoiceBot while a second LLM evaluates the conversation against success criteria saving 2–3 hrs of manual QA per client handover across 5-7 to and fro before each go-live.• Setup hallucination measurement of LLM-powered agents on what they speak under a given condition• Fine-tuned an OpenAI model on ~60 call transcripts and saw improved outcomes out of the box without any prompt-layer optimization. This exercise established fine-tuning as a viable path within the company, influencing the broader product strategy.

Education

• Indian Institute of Technology, Roorkee

  Bachelor of Technology - BTech, Chemical Engineering

  2017 — 2021