FCT Technologies is a Chicagoland software company. It builds marketing websites, web and mobile apps, AI automations, Second Brain OS (the AI brain a business owns, as plain files) and custom AI harnesses (the runtime that brain runs on). It also ships its own thirteen native apps on one shared account. The company runs on the same systems it installs for clients. That is why the work arrives fast, arrives finished, and keeps working after launch.
Built to be found.
Every page is written to answer the question someone actually typed, and built so Google and the AI answers above it can quote you rather than skip you.
Built to be fast.
The page is finished before a visitor decides whether to wait for it, on the worst phone and the worst signal. Speed is where the work starts, not a pass at the end.
Built to keep working.
The decisions are in writing, the system is one the next person can pick up, and FCT keeps running what it built. Changing it later should never mean starting it again.
Available · Chicagoland
Fernando Caudillo Tafoya
Founder
Fernando founded FCT Technologies in Elgin, Illinois, after a computer science degree at the University of Illinois Chicago. He set the standard the company builds to: native on Apple platforms, fast on the web, kept working after launch, and run on an AI operating layer FCT built for itself before offering it to anyone else.
Every FCT engagement gets clear milestones, the decisions in writing, and software that keeps working after launch.
What is the actual problem? Not enough leads, work done by hand, no AI workspace, no software direction. The work starts where the cost is.
02
Pick the right first milestone.
The goal is something usable you can launch, not a big build before the business has any signal. Risk drops every time something real ships.
03
Build so it keeps working.
The decisions are written down, the next steps are predictable, and the system stays easy to run after launch. A website FCT builds, FCT hosts and keeps current.
What "runs on its own AI" means
The operating layer, not a chat window.
Most shops use AI the way everyone does: a chat tab, re-explained from scratch every session, nothing kept. FCT runs an owned workspace of plain files underneath the whole company, on a harness FCT built rather than a tool it bought. Both are things we build for clients. The workspace is Second Brain OS. The runtime beneath it is a Custom AI Harness. We sell what we run.
The work you seeSites, apps, automations, the newsroom
The operating layerContext, memory and skills carried into every session instead of re-explained
IdentityMemorySkillsAutomationsTools
Plain files you ownPlain text on your own machine, readable by you ten years from now
No vendor lockNo hidden databasePortable
The harnessThe loop that runs it: our own runtime rather than a bought tool, so the layers above it fit the work
Owned loopGated actionsParallel agents
The modelRented and swappable. Everything above it is the asset, and it survives a change of provider
Any provider
The same stack FCT installs for clients, running the company that builds it.
The public record
Villain Arc
Strength-training app for iPhone and Apple Watch, shipped to the App Store in February 2026 and returning as version 2.0 on FCT's own account and sync platform. It suggests your next weight on the phone and checks its own work.
Transcription Studio
Native Mac and iPhone transcription that tells the speakers apart: who said what, worked out entirely on your own machine.
Thirteen apps, one account
Eleven more native apps for iPhone, iPad and Mac, on one shared foundation and one FCT account, are built and in verification ahead of their first release. Every one has its own page and says where it stands.
Second Brain OS
FCT runs its own Second Brain OS: the working reference for the product, an AI brain the business owns as plain files.
The harness under it
FCT built and runs its own AI runtime rather than buying one: an owned loop, swappable models, actions gated in code, and parallel agents. Measured at a 98.9% cache hit rate across 67 active days as of September 2, 2026. Offered as a Custom AI Harness.
Client sites
Every client site is designed and built from scratch rather than dropped onto a template. Fast, found in Google and AI answers, and kept running by FCT. That is the Marketing Websites service.
Available · Chicagoland