Case Study · Banking, Financial Services & Insurance
A legacy loan servicing platform, modernized without rip-and-replace.
Modern, governed reporting bridged onto a 30-year-old AS400 servicing core, without ripping it out.
Modern, governed reporting bridged onto a 30-year-old AS400 servicing core, without ripping it out.
A commercial-real-estate structured-finance firm ran servicing on McCracken STRATEGY (IBM AS400). Stable and audit-grade, but its reporting lived in hand-built Excel extracts.
Opening weeks spent mapping every report and its real consumers before proposing anything.
Kept STRATEGY on AS400 as the system of record; added a daily extract into a modern Azure layer.
Bronze / Silver / Gold layering, raw to business-ready, with governance from day one.
Role-based access via Azure AD, row-level security in Power BI, audit logging at every layer.
The hard part isn't the tech. It's the seams between us, the Azure partner, and the servicing-software vendor. We owned them.
Everyone else pitched a multi-year replacement. Thunderhawk started by understanding what we actually had, then built a modern reporting layer on top of it — audit trail intact, no rip-and-replace.
If you're sitting on a stable legacy core and a frustrated business user base, and the rip-and-replace pitches don't add up, let's talk about the bridge architecture path.