Network System One Team

Rex Kelly

Engineer

Written by Rex

Articles & Insights

Case Studies 07 Jun 2026 4 min read

How we built a RAG-powered document intelligence system that reduced research time by 70% for a 40-attorney firm in Lagos.

Rex Kelly

AI Strategy 07 Jun 2026 4 min read

CEOs and CFOs want numbers. Here is how to build a measurement framework that honestly captures the value of your AI investment.

Rex Kelly

AI Engineering 05 Jun 2026 4 min read

Voice agents have moved past demos. Here is what enterprise-grade voice AI looks like and where it actually fits in the stack.

Rex Kelly

Guides & Tutorials 03 Jun 2026 4 min read

Prompt engineering is not arcane knowledge. These patterns make your AI interactions more reliable without needing an ML background.

Rex Kelly

Automation & Workflows 01 Jun 2026 4 min read

Client onboarding is full of repetitive, error-prone steps — exactly the kind of work that AI-powered workflows eliminate.

Rex Kelly

AI Engineering 29 May 2026 3 min read

Two of the most debated techniques in applied AI. Here is a practical framework for choosing between them — and when to use both.

Rex Kelly