O'Brien & Son
Where quality craftsmanship meets software architecture. A workshop for building production systems with the same attention to detail that built our reputation in exterior remodeling.
In 1986, my mother founded O'Brien & Son to build quality into every project. For four decades, that meant windows, siding, gutters, shutters, and lasting craftsmanship. Today, the name continues, but the materials have changed. This workshop is where backend architecture, security patterns, and production systems are designed, built, and refined.
Workshop Philosophy
Security as Architecture
Authentication, authorization, and data protection are design decisions, not afterthoughts. Built in from the foundation.
Backend-First Development
Business logic lives in services, not scattered across UI components. Complete APIs before frontend work begins.
Time for Quality
Every hour in design saves five in refactoring. Proper upfront work prevents architectural debt that cripples projects later.
Featured Work
View AllProject ARES: Backend-First Architecture
Multi-tenant athlete management platform · 100+ API endpoints · .NET 10
The Challenge: Build a production-ready, multi-tenant platform where business logic is complete at the API layer, making frontend development a mechanical exercise rather than an architectural challenge.
Written as a mathematical proof demonstrating systematic problem decomposition, architectural discipline, and execution capability. Complete backend implementation with zero refactoring required during UI development.
Active Workshop
This site is itself under active development. New demonstrations, refinements to existing work, and additional architectural examples are added as they reach production quality.
The Same Standards. Different Materials.
O'Brien & Son built its reputation on quality that lasts. That commitment continues—now applied to software architecture, security-conscious design, and production systems.
Liam O'Brien — Senior Solutions Architect for Security
Backend-first architecture · Security as design · Systems built to last