Puneet Bhatt

Building in stealth. Previously Founding Engineer @ Thine & Merlin.

Bengaluru-based engineer focused on high-impact AI products. I work across product thinking, UX, backend systems, and evaluation loops to ship reliable LLM experiences.

  • Building in stealth at the intersection of product and engineering.
  • Previously Founding Engineer at Thine, focused on memory systems and context engineering for new product initiatives.
  • Founding Engineer at Merlin by Foyer, from first prototype to scaled experiences used by 1M+ people.
  • Co-built Intwiff in college, a bike rental product with customer and vendor workflows.

Merlin by Foyer

What I built there

  • Conceptualized and shipped Merlin’s first prototype (ooogle.it), helping shape the path to 1M+ users.
  • Built early end-to-end experiences across Chrome extension and web: SERP AI, YouTube Summary, and chat with webpages/documents.
  • Owned Merlin Chat backend in 2023, driving context engineering across web search, files, videos, and model switching.

Blog

Notes from the journey

Essays on building Merlin, staying reliable with AI tooling, and the product experiments that don’t make the highlight reel.

Jan 13, 20268 min read

How to Talk to Your Coding Agent

AI coding agents are powerful but unpredictable. This essay covers context systems, planning discipline, and accountability loops that improve output quality.

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Dec 19, 20234 min read

How To Fix OpenAI Rate Limits & Timeout Errors

LLMs are starting to get used across a wide variety of use cases. These include translation, sentiment analysis, generating code, blogs…

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Drafting longer-form stories on product craft, AI workflows, and the business of shipping. Drop topics you want covered via email.
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