Hi, my name is

Diego Vallejo

I build

Senior Full-stack developer transforming complex problems into elegant code. Specializing in AI integrations, scalable architecture, and intuitive user experiences.

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About Me

I'm a full-stack JavaScript developer focused on building intelligent, scalable web applications. My work spans AI agent architecture, real-time systems, and clean, accessible front-end experiences — turning complex problems into reliable products.

Recently I've been shipping production apps with Next.js and Supabase, designing multi-agent AI pipelines, and writing about the craft on my blog.

Full-stack

Frontend to infrastructure

AI-first

Agents & LLM systems

A11y-minded

Accessible by default

Technical Skills

Frontend

React

JavaScript

HTML5

CSS3

Backend & Data

Node.js

Python

SQL

Git

AI & Cloud

AI / ML

AWS

Featured Projects

AI Architecture

POLARIS

A revolutionary decision-making framework inspired by Kahneman's dual-system thinking. Orchestrates multiple AI agents using MCTS.

PythonLangChainMCTS

Web App

dogVision

Real-time simulation of canine vision using WebRTC and Canvas API. Applies dichromatic color blindness adjustments.

JavaScriptWebRTCCanvas

SaaS / Privacy

NewsApp

Privacy-focused news aggregator. Features server-side rendering and anonymous cloud screenshot functionality.

Next.jsReactPuppeteer

EdTech / SaaS

coding-skills.dev

Technical certification platform: timed exams, Stripe checkout, and verifiable PDF certificates with QR validation.

Next.jsSupabaseStripe

Inventory / PWA

Roma Café Inventario

Real-time inventory system tracking stock across branch and warehouse, with role-based access and a live activity log.

Next.jsSupabaseRealtime

Get In Touch

Have a project in mind or want to discuss AI architecture? Send me a message.