Shrabanti Mitra

Overview

Based in Kolkata. I lead API platforms at Quarry AI. Built the experimentation framework 23 product teams use to ship changes safely. Most at home with rate limiting and Python. Swimming before work keeps me sane.

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Experience

1. CTO

   Jun 2025 - Present
   Quarry AI · 1 yr 4 mo · Full-time · Kolkata, India
   • Mentored 5 engineers through their first promotion.
   • Cut p99 latency on the public API services from 674ms to 81ms.
   • Built the experimentation framework 33 product teams use to ship changes safely.
2. Principal Engineer

   Mar 2024 - Jun 2025
   SAP · 1 yr 3 mo · Full-time · Kolkata, India
   • Previously an operator for 10 years before investing.
3. Staff Backend Engineer

   Apr 2022 - Mar 2024
   Hindustan Unilever · 1 yr 11 mo · Full-time · Kolkata, India
   • Brought on-call pages for public API down from 27 a week to 4.
4. Senior Backend Engineer

   Mar 2020 - Jan 2022
   KPMG · 1 yr 10 mo · Full-time · Kolkata, India
   • Shipped a rewrite that took build times from 39 minutes to under 3.
5. Engineering Manager

   Nov 2017 - Mar 2020
   Boston Consulting Group · 2 yr 4 mo · Full-time · Kolkata, India
   • Reduced cloud spend on public API by 36% in two quarters.

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Education

1. Anna University

   B.E., Computer Science
   2005 - 2009