Software Engineer · AI

Juan Carlos Díaz

Full-stack engineer with 14+ years of experience building web platforms and production systems. AI-focused work includes LLM applications with RAG, TTS pipelines, computer vision, machine learning and deep learning.

Full Stack / Product
ForoBardo

Community platform built, deployed, operated and maintained as an independent product, with authentication, media storage, SEO, analytics and cloud infrastructure.

Local-First · Hybrid AI · RAG
Emma 3.0

Local-first hybrid AI assistant with private on-device RAG and a choice of local models or external services, plus inconsistency detection and prompt-injection screening.

Frontend / Design Systems
Aesthetic Store

Reusable frontend aesthetics built as executable visual references for developers and AI-assisted workflows.

Widget / AI UI
AI Mascot

Tiny embeddable JavaScript mascot widget with moods, speech bubbles and a small public API for friendly UI feedback.

TTS / Audiobook Pipeline
Audiobook Generator TTS

Local XTTS pipeline that turns narratable book scripts into audiobook-ready WAV/MP3 output with curated voices, silence cleanup, merge and ACX-style export.

Web Design · Cloud Deploy · Dutch
TalkingDutch

Landing page built for my Dutch professor with HTML, CSS and JavaScript, including responsive web design work and cloud deployment.