National Australia Bank accelerates legacy migrations with Cursor

National Australia Bank (NAB) has implemented the Cursor platform across its development teams to enhance project delivery speed and quality, after evaluating and selecting it over Amazon Q and GitHub Copilot. This strategic move has enabled NAB to expedite legacy codebase modernizations, such as transitioning from monolithic structures to microservices and migrating from Assembly-based mainframes, achieving a threefold increase in speed. The flexibility of Cursor's model allows engineers to choose different models based on task complexity, while its understanding of the codebase across various tech stacks ensures accurate agent behavior. NAB has also benefited from Cursor's extensibility, using it to enforce development standards via a custom internal library. The bank plans to embed Cursor into all phases of the software lifecycle, including code review and quality assurance, while also democratizing software development across different organizational roles. Notable achievements include completing a hardware-agnostic payment app in three weeks, significantly faster than the projected four-month timeline, and accelerating the refactoring of a business lending application from Silverlight to Java microservices, with all pre-development tasks completed in just one week.

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