Case Studies
Proof, Delivered in Days
Real legacy modernizations, documented in detail. Each case study shows what was modernized, how it was done, and what changed — with the full report available as a PDF.
156
SQL-injection sites closed
Modernizing a Legacy Banking Application
ASP.NET WebForms (.NET Framework 3.5) → .NET 10 + React 19
The bank's letter-management system creates, authorizes, and prints customer balance and advance letters. It ran on an end-of-life WebForms platform. AEGIS rebuilt it on a modern, secure architecture and kept its business logic exactly as it was.
5–8X Faster
Faster than baseline estimate
Quantitative Sizing of a Legacy Modernization
CodeIgniter 3 (PHP) → React + Node.js
Before committing budget or a team, leadership needed what most modernization proposals never provide: a quantitative, item-level breakdown of exactly what existed in a legacy public-sector case-management platform, and a defensible estimate of how hard it would be to rebuild.
~100k
Concurrent real-time connections
Modernizing an IT Help Desk Platform
ASP.NET MVC 5 / .NET 4.5 + Oracle → Next.js + Node.js + Entra ID + Azure SignalR
A legacy IT Help Desk application with per-user Oracle-credential login, an in-memory real-time job board, and stringly-typed data contracts was rebuilt as a modern three-tier platform. The proven Oracle business logic, which encodes years of operational knowledge, was deliberately retained: **"retain the proven Oracle logic, replace everything around it."**