I'm Jodrick Marquinez — an IT and cybersecurity professional based in New York. I build and harden the infrastructure businesses run on, ship products end to end, and write critically about vulnerabilities, AI, and the gap between what technology promises and what it actually delivers.
I work across the full stack of modern infrastructure — networking, Active Directory, Linux and VPS administration, containerization with Docker, cloud (AWS & Azure), and security auditing. I like the unglamorous parts: hardening configurations, closing gaps, and making systems boring in the way secure systems should be.
Outside of operations, I build and run my own products, which keeps me honest about how software actually breaks under real users and real payment flows.
I also write. My interests sit at the intersection of security, infrastructure, and a critical read on the AI industry — where the genuine engineering ends and the marketing begins.
IMG // warden
An offline-first smart-home hub that runs a local LLM (Ollama) on Home Assistant — full voice and automation control with no cloud, no telemetry, and nothing about the household leaving the building. Built for people who treat privacy as non-negotiable, with a camera-free elder-care monitor at its core.
IMG // doppler
A real-time neural voice-conversion pipeline that began as a VRChat experiment and turned into a firsthand study of synthetic-voice fraud. Speech in, a different voice out — fast enough to feel live. I chained Whisper (STT) into ElevenLabs synthesis, then spent the project collapsing end-to-end latency until the illusion held.
IMG // hidden-alchemist
An e-commerce platform serving a niche technical community. I designed and built the full storefront — a custom multi-step product configurator in vanilla JS, Stripe and PayPal gateway integration, and an extensive front-end / UX engineering effort on top of WordPress + WooCommerce.
Essays and analysis on infrastructure security, emerging vulnerabilities, and a skeptic's view of the AI industry. Links can point to this site or to outside publications.
Where the exposure really sits — GPU cloud providers, thin AI wrappers, and overbuilt data-center capacity — and what a correction would hit first.
One- or two-sentence summary of the piece. Swap this placeholder for your next published essay.
One- or two-sentence summary of the piece.
More essays in progress. Each article is just a copy of a row above — duplicate it, swap the title, date, category, summary, and link.
JODRICK MARQUINEZ