2022 — 2026Córdoba, ArgentinaRemote

DiegoBarrionuevo

Full-stack software developer

I build products, automations and integrations that solve real business processes — from discovery to deploy.

See work

Results & impact

GitHub ↗LinkedIn ↗

TypeScriptNode.jsReactNext.jsPostgreSQLDockerRedisDirectus

01Results & impact

I've built platforms used by thousands of people, internal systems, API integrations and AI products

years building software, since 2022

+250K

users reached by platforms I built

End to end

from discovery to deploy and maintenance

Remote

with teams and clients across countries

Each project's metrics live in its own card

02Selected work

P/01DonWeb Cloud — Content platformProduction

DonWeb Cloud screenshot

Editorial platform · Ghost

DonWeb Cloud — Content platform

Architecture, development and support

I built an editorial platform with a dashboard, custom templates and a Ghost theme, simplifying publishing. It reached 200,000+ organic views in its first 3 months and gave DonWeb's services real visibility. I also produce tutorials and technical videos for their official channels.

Ghost 6HandlebarsMySQLCaddyDocker

Impact

200,000+

organic views in the first 3 months

Publishing made simple for the editorial team.

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P/02DonWeb Cloud — Workshops & certificationProduction

Workshops platform screenshot

Multi-service · since 2023

DonWeb Cloud — Workshops & certification

Development and technical leadership

I built the first version in May 2023 and led its full renewal in 2026: multi-service architecture, CI/CD and 1,700+ tests. As of July 2026 it manages 218 courses, workshops and webinars, 138,109 registrations and 123,253 certificates. I migrated with zero downtime, preserving historic data and URLs, and automated communications and operations.

Node.jsTypeScriptReactPostgreSQLDirectusDockerCI/CD

Visit the site

As of July 2026

218

courses, workshops and webinars

138,109

registrations

123,253

certificates issued

1,700+ automated tests and a zero-downtime migration.

Public certificate screenshot

Public certificate

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P/03Somos Hashi — AI contentMVP

AI content

Somos Hashi — AI content

Full-stack development

I built the MVP of an AI content-creation platform, covering the frontend, the backend and the integration with OpenAI models.

Next.jsTypeScriptNode.jsOpenAIDocker

Visit the site

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P/04Ada13 — Web platform

Web platform · ongoing maintenance

Ada13 — Web platform

Full-stack development and maintenance

I refactored the frontend and backend, processed data and implemented transactional email. I also handle service maintenance, corrective support and issue tracking.

Frontend refactorBackend refactorData processingTransactional emailSupport

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03Capabilities

C/01

Product development

Web apps and SaaS, from first analysis to production.

C/02

Backend & integrations

APIs, databases, auth, webhooks, payments and third-party services.

C/03

Automation & AI

Processes, documents, assistants and model integration.

C/04

Deploy & operations

Docker, servers, monitoring, debugging and maintenance.

Stack

Core in TypeScript, Node.js, React, Next.js and PostgreSQL. The rest are tools I've used in real projects.

Frontend

TypeScriptReactNext.jsReact NativeTailwind CSS

Backend

Node.jsExpressREST APIsWebhooksBackground jobs

AI & agents

OpenAIClaude APIAgentsRAGEmbeddings

Data

PostgreSQLRedisDirectusSupabasePrisma

Infra

DockerUbuntuVercelCloud RunCaddy

Integrations

ZoomYouTubeMercado PagoCustomer.ioWhatsApp

04Own products

Projects I'm building on my own. Still in development: no users or revenue yet.

Hermes

In development

SaaS for local businesses

A platform for a business to manage its catalog, orders, cash and customer service. Customers build their order in a web store and send it over WhatsApp.

Catalog and cart
Order management and business dashboard
Hours, business status and automated replies

Next.jsPostgreSQLCloud RunWhatsApp

Personal finance with AI

In development

Mobile-first application

An app to record and analyze financial movements from text, audio or receipt photos.

Receipt reading and assisted classification
Accounts, cards, installments and debts
Available balance, reserved money and reports

React NativeTypeScriptAI APIsOCR

Córdoba, ArgentinaGMT−3 · —

05About me

I turn manual processes into systems a team uses every day

I'm a full-stack developer with a Systems Engineering background and experience building applications for companies, startups and my own products.

I'm drawn to projects where I have to understand the problem, design the solution, connect services and take the product all the way to production. I can work solo, or join a team and own a complete part of the product.

GitHub LinkedIn

Information Systems Engineering

Universidad Tecnológica Nacional — Córdoba · 2018 — 2022