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Comment by stevesimmons

5 years ago

This was 100% my experience too.

The biggest productivity gains were:

- having a single source of truth for both data and code (in a closely coupled environment)

- strong, battle-tested libraries to take care of all infrastructure concerns.

- enforced code dev/test/review/deployment workflows

This let the front-office devs be highly productive on adding real business value for their trading desks.

Remember also that these systems at GS, JPMorgan and BAML started around 2007-2010. The infra we all take for granted today at AWS/GCP/Azure simply did not exist back then, and banks' data security policies at the time did not allow cloud processing.

> Remember also that these systems at GS, JPMorgan and BAML started around 2007-2010.

GS had „these systems“ well before 2000 (via J Aron). I think around the time you mentioned they spread to other firms (in their Python reincarnation).