How Booking.com tackled a data quality crisis: Nimit Bhardwaj (Data Product Manager) – Product Unplugged

May 5, 2025 at 07:00 AM
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In this episode of Product Unplugged, host Mike Belsito sits down with Nimit Bhardwaj, a data product manager at Booking.com, to discuss how his product team faced a high-stakes data quality issue and walked us through the process they used to solve it.

Key Takeaways

  • “Treat data like a product.” Ownership doesn’t end at building features—it extends to the data those features create.
  • Short-term fixes matter. A tactical “quarantine” service helped buy time while driving long-term system change.
  • Don’t underestimate 1%. A 1% error rate in financial data still led to 40,000+ manual corrections each month.
  • Data quality isn’t one team’s job. True success came when upstream teams took responsibility for their data’s accuracy.
  • Measurement is meaningless without messaging. 99% sounds fine—until you translate it into delayed payments and angry suppliers.

Chapters

00:00 – Intro & Meet Nimtt Bardwage from Booking.com

01:45 – The big data quality problem that couldn’t be ignored

04:00 – Root causes: legacy systems, knowledge gaps & migration chaos

06:00 – When 99% data accuracy is a massive risk

08:00 – The two-track approach: tactical + strategic

10:00 – Building a quarantine service to protect financial systems

12:00 – From patch to platform: scaling into strategic change

14:30 – The results: automation, ownership, and 12x improvement

16:00 – What we’d do differently next time

18:00 – Common pitfalls to avoid when dealing with data quality

20:00 – Everyone owns the data

About the author

Louron Pratt

Louron Pratt

Louron serves as the Editor at Mind the Product, bringing nearly a decade of experience in editorial positions across business and technology publications. For any editorial inquiries, you can connect with him on LinkedIn or Twitter.

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