Legacy Software + Agentic Discovery

Legacy Software powers the world - from banking to utilities and government. The hardest part isn’t the code - we have the code.... it’s when the old guy with the beard leaves, and the knowledge walks out with him: what the code really means, the system truth, the business rules, and the original intent.

To modernise safely you need more than technical understanding - you need functional understanding. A legacy codebase is a crime scene: you have to retrace the steps, gather evidence, and reconstruct the story in plain language everyone can work with.

In this session I’ll share learnings from building a software reverse-engineering platform, including the real trade-offs between quality, cost, and speed, plus case studies showing how teams have de-risked modernisation by turning 12M lines of legacy code into living requirements - in weeks not years, and for a fraction of the cost. You’ll leave with practical patterns for agentic discovery, where it breaks down, and how to keep it honest.