“Shifting from proofs of concept… to actual end-to-end process transformation.”
Hari Gopalkrishnan, Chief Technology & Information Officer, Bank of America. CIO Dive, 14 April 2026.
The exam is phase two. Phase three is what stops you doing all of this again in three years.
Test coverage lifted, regression cycles cut by about 90%, with teams of Devins acting as QE and SRE.
devin.ai/customers/literaOf security vulnerabilities auto-remediated, and test coverage roughly doubled, at global-finance scale.
devin.ai/customers/itauThe target version is worth deciding together. Angular 18 is already end of life.
Proof is every consumer repo still building, module by module, behind a flag you control.
FE fundinfo: engineering capacity scaled across 1,800 repos.

Repos covered as engineering capacity scaled across the estate, the same fan-out shape as your component library.
devin.ai/customers/fefundinfoA 200,000-line modernisation estimate cut to eight days during a four-week pilot.
cognition.com/blog/mercedes-benz-cognitionCorrectness here shows up at cutover, not in a code review. The plan is built around that.
Proof is a shadow run against real traffic, not a code review.
Nubank: 6M-line core migration, 8-12x on engineering hours.
Efficiency gain migrating a 6M-line core monolith, fanned out across parallel Devins. Over 20x cost saving.
devin.ai/customers/nubankFaster Redshift to Snowflake migration, a data-platform move with the same cutover-shaped risk.
devin.ai/customers/angellist