Nathan Stewart

My career started in 2008 at a Department of Defense computing center, monitoring 40 IBM MVS mainframe domains and managing thousands of backup tapes daily. It was high-pressure, low-margin-for-error work - and it taught me that systems thinking isn't optional, it's survival.

From there I moved into enterprise data center operations and network monitoring, eventually landing at Express Scripts (now Evernorth Health Services) where I spent over a decade evolving from middleware infrastructure engineer to automation specialist to software engineer. I built deployment platforms, diagnostic tooling, and internal apps that turned raw backend data into actionable interfaces.

Somewhere along the way, the frontend pulled me in. React, TypeScript, Next.js, Tailwind - the modern web stack became my playground. I started combining that with AI integration: prompt engineering workflows, voice interfaces with ElevenLabs, and LLM-powered tooling. The line between infrastructure and product blurred, and I liked it there.

Today I build independently under I4C Studio. q-ring (a keyring that gives AI coding agents policy-governed access to real secrets), ProtonShift (native Linux gaming configuration), MineUI (Minecraft servers without the terminal), Cryo (the Alienware command center Linux never had), Groundrules (a visual studio for AI agent instruction files) and free browser tools like Tanko, Koyomi and Kataribe - all expressions of the same drive: architect systems that feel alive, push boundaries, and make complex things accessible.