Datomic at Nubank, Simplicity Scaled (by Jordan Miller)

Jordan Miller shares how Nubank uses Clojure and Datomic in production at massive scale.

The London Clojurians are happy to present: ~~~~ reClojure 2025 ~~~ Title: Datomic at Nubank, simplicity scaled Speaker: Jordan Miller Nubank runs on Clojure and Datomic, but what does that really look like at scale? In this talk, I’ll share my personal journey—from early interactions with the Cognitect team to joining Nubank and working directly with Datomic. I’ll give an inside look at how we use Datomic in production, what we’ve accomplished over the last year, and what it’s like being part of the Datomic team today. Speaker Bio: Jordan Miller (she/her/altgirl) is a Staff Software Engineer at Nubank where she focuses on Datomic developer success. Known in the streets for her passion for spreadsheets she enjoys connecting with engineers who appreciate the finest of functions. International globetrotter and stimulation seeker she has no idea how she manages to juggle so many projects; she is co-author of Clojure Brain Teasers, co-founder of Clojure Camp and producer/host of the Lost In Lambduhhs podcast. Thank you to our sponsors: - juxt.pro/ - flexiana.com/ - freshcodeit.com/ - nubank.com.br/