Pritam Arnab Bhattacharya

Overview

I lead payments infrastructure at Tandem Data in Noida. Moved 63% of payments platform traffic off a legacy monolith without a customer-facing incident. Most at home with idempotency and PCI DSS. Learning to sail.

Replies on weekday evenings

Experience

1. Engineering Manager

   May 2025 - Present
   Tandem Data · 1 yr 5 mo · Full-time · Noida, India
   • Built the experimentation framework 17 product teams use to ship changes safely.
   • Grew the payments platform team from 4 to 26 engineers.
   • Moved 91% of payments platform traffic off a legacy monolith without a customer-facing incident.
2. Senior Backend Engineer

   Apr 2022 - May 2025
   Postman · 3 yr 1 mo · Full-time · Noida, India
   • Shipped 25 launches on the payments platform team without a rollback.
3. Backend Engineer

   Sep 2018 - Jan 2022
   Nvidia · 3 yr 4 mo · Full-time · Noida, India
   • Wrote the gRPC service that now handles 15 million requests a day.
   • Took payment success rates from 92.9% to 97.3%.
4. Senior Backend Engineer

   Mar 2017 - Sep 2018
   Meesho · 1 yr 6 mo · Full-time · Noida, India
   • Wrote the Kafka service that now handles 38 million requests a day.
   • Reduced cloud spend on payments platform by 34% in two quarters.
5. Backend Engineer

   Apr 2014 - Mar 2017
   Philips · 2 yr 11 mo · Full-time · Noida, India
   • Cut p99 latency on the payments platform services from 302ms to 90ms.
   • Moved 69% of payments platform traffic off a legacy monolith without a customer-facing incident.

Projects

No references yet.

Education

1. XLRI Jamshedpur

   MBA, Business Administration
   2015 - 2017
2. IIT Kanpur

   B.Tech, Information Technology
   2008 - 2012