Case study·Capital-markets software

A trading-software company made ambitious engineering change repeatable — and safe for AI.

A capital-markets software company was building a real-time order management system but wasn’t yet able to deliver on the vision. We helped them turn scattered good ideas into coordinated change, and made AI-assisted development safe and practical on the same foundation.

16×
faster validation of major changes
98.5%
reliability across 120,000+ weekly test steps
100%
database-layer type safety, up from 0%
The context

A capital-markets software company building a real-time order management system for institutional broker-dealers. An event-driven architecture promised a modern alternative — but the org was nearly two years from production, and basic workflows were unreliable.

The challenge

The visible engineering problems were symptoms of a deeper one: friction across the whole delivery lifecycle, ambiguous requirements, and no reliable path to turn good ideas into coordinated change. The company didn’t lack talent — it lacked a way to make organization-wide change stick.

Our approach

We treated major engineering changes as funded company initiatives, not side-of-desk heroics:

Assessed the org by interviewing ~30% of the company to find the real problems and shared definitions.
Built the foundation — a mature testing platform and a type-safe architecture that made fast, trustworthy feedback the norm.
Made AI practical on that foundation, migrating tests and queries with AI-assisted workflows backed by layered validation.
The outcome

Validation of major changes went from ~4 hours to 15 minutes; day-to-day feedback from 15 minutes to ~30 seconds. The team migrated 33,000+ lines of tests and queries with AI, on an architecture now 100% type-safe. Most of all, the org learned to coordinate ambitious change — and stopped treating unreliability as inevitable.

“They helped us do something we had never successfully done before: coordinate a major architectural change across the entire engineering organization. More importantly, they changed what we believed was possible.”

Engineering leadership — capital-markets software company
Services used

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