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Surviving Database Migrations: Ambitious and a little crazy

Zander Hill
Zander Hill
Database Wrangler and Engineering Leader
Plaid

May 27-29, 2026 • Computer History Museum, California
Date, time, and room will be announced soon.

MySQL

Learn how we survived a 2.5 year database replatforming at Plaid where we moved 234 databases across 100 services. How did we survive and how should you approach it when you face an impossible task that’s a “default fail” scenario?

We’ll dive deep on the factors that helped us succeed:

  • From a critical assessment of business constraints
  • Making things better every time
  • Cross-functional alignment
  • Building the dream in flight
  • Front-loading risks
  • Building a championship team

After hearing this talk, you’ll be able to give informed consent when subjecting your team to the grueling challenge of rebuilding a data-platform in-flight. It’s everything I wish I knew when I started out that fits into thirty minutes! Buckle up and turn off your pagerduty because this will be a whirlwind.

Surviving Database Migrations: Ambitious and a little crazy

Speaker

Zander Hill
Zander Hill
Database Wrangler and Engineering Leader
Plaid

Database Whisperer at scale. Aspiring to be more webscale every year. Zander Hill is the architecture lead for the platform area of Plaid and has been professionally fighting databases for a number of years. He founded …