Backend Engineering for the AI era

Building reliable systems that power the future.

I design and build scalable backend systems, cloud-native applications and AI-powered tools with a focus on clean architecture, observability and developer experience.

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Projects

Things I built for real

Production-grade apps. Not side projects gathering dust — things you can open right now.

forma.diegobarrioh.dev/plan

WIPlive

FORMA

Training and nutrition, with Mercadona and Withings

A fitness platform with a training plan and a nutrition plan. Measurements arrive on their own from a Withings scale and the shopping list comes out every week with Mercadona products and their prices, which is what makes it easy to follow.

AISpring BootReactPostgreSQLNutrition

Open app

akademia.diegobarrioh.dev

WIPlive

akadem.ia

Your AI-powered learning companion

A platform that transforms how you learn. Built with a clean backend architecture and AI integration to deliver personalized educational experiences. The first project shipped under the backendtothefuture.com umbrella.

AISpring BootJavaBackendEducation

Open app

tokenmeter.backendtothefuture.com

Releasedlive

tokenmeter

AI repository cost intelligence

Estimate what it would cost to regenerate any public GitHub repository with modern AI models. tokenmeter scans the codebase, measures its token footprint, and benchmarks raw, assisted, and agentic generation workflows across providers.

AINext.jsTypeScriptTokenizerCost Analysis

Open app

Stack