Santiago ParadeloFull-stack · AI

Full-stack developer · Rosario, Argentina

Software that runs the business, built by one pair of hands.

Backend, web, mobile and the AI layer in between. Six years shipping products for companies in Europe and Latin America.

LaravelNext.jsNuxtFlutterTypeScriptPostgreSQLClaudeGeminiDockerTailwindGSAPMercado PagoWhatsApp APICloudflare

How I work

I own the whole feature: data model, API, interface, tests and the deploy. I keep the AI honest with retrieval and evaluation. I write the documentation nobody asked for, because the next person will.

About me

Six years building products that pay for themselves.

I am a senior full-stack developer from Rosario, Argentina. I started with PHP and WordPress in 2019, grew into Laravel, React, Vue and Nuxt at agencies in Chile and France, led a Laravel team in Uruguay, and today I ship across Laravel, Nuxt, Flutter and a TypeScript AI service at Medmastery, a medical e-learning company in Austria.

What I care about has not changed: understanding the business well enough to write the right thing, owning it from the data model to the screen, and leaving tests and documentation so the next person can keep going. Since 2026 I also run Pegasus Studio with two partners, where we build for small businesses that buy software by the result.

Systems Engineering at UTN, in progress. University Technician in Programming, UTN.

6+
Years shipping
50+
Projects delivered
5
Countries worked for
2
Working languages

The stack I work in every week

  • Backend

    • PHP
    • Laravel
    • Node.js
    • TypeScript
    • REST APIs
    • Queues & events
  • Frontend

    • React
    • Next.js
    • Vue
    • Nuxt
    • Tailwind CSS
    • GSAP
  • Mobile

    • Flutter
    • Expo
    • Push notifications
    • In-app billing
  • AI

    • Claude
    • Gemini
    • Agent SDK
    • MCP
    • Retrieval
    • Evals & guardrails
  • Data & infrastructure

    • PostgreSQL
    • MySQL
    • SQLite
    • Docker
    • Nginx
    • Cloudflare
    • CI/CD
  • Business integrations

    • Mercado Pago
    • Stripe
    • ARCA invoicing
    • WhatsApp API
    • Analytics

My studio

Pegasus Studio, the studio I run with two partners.

Since 2026 we build software for small and mid-sized businesses that buy by the result: a shop that sells after hours, a lobby screen that answers what reception used to answer, a site that brings quotes with the details already filled in.

I lead the technical side of every engagement, from scoping to deploy on our own infrastructure, and design most of what we ship. The studio speaks five languages on its site and works with clients in Argentina, Uruguay and Europe.

Visit pegasustudio.com
Home page of pegasustudio.com

What we build

  1. 01Websites and web apps that sell and are measured
  2. 02Points of service: kiosks, screens and tablets in the shop
  3. 03Operations automation and WhatsApp agents that take orders
  4. 04AI assistants grounded in the business's own content

The Pañalera Rosario, ARX Hotel and SARITTA! cases further down were delivered through the studio.

What I do

Four things, done properly.

  1. 01

    Product engineering, end to end

    From the data model and the API to the screen the customer touches. One person who owns the whole feature and ships it with tests.

    • Laravel
    • Next.js
    • Nuxt
    • PostgreSQL
    • TypeScript
  2. 02

    AI that holds up in production

    Assistants grounded in your own content, with retrieval, guardrails, evaluation and cost control. Agents that take orders, invoice and hand off to a person when they should.

    • Claude
    • Agent SDK
    • MCP
    • Gemini
    • Evals
  3. 03

    Web and mobile, same feature, same week

    Flutter apps for iOS and Android that share the backend with the web product, with billing, push and analytics wired in.

    • Flutter
    • Expo
    • RevenueCat
    • Firebase
  4. 04

    Integrations and operations

    Payments, invoicing, WhatsApp, CRMs and the servers underneath: Docker, Nginx, Cloudflare, CI and monitoring, so the thing keeps running after launch.

    • Mercado Pago
    • ARCA
    • WhatsApp API
    • Docker
    • Cloudflare

Experience

Six years, five teams, three continents' worth of time zones.

  1. Nov 2025 · Present

    Austria · Remote

    Medmastery

    Full-Stack Developer

    Medical e-learning platform used by healthcare professionals worldwide.

    • Develop and maintain the full product stack: Laravel backend, Nuxt web apps, a Flutter app for iOS and Android and a Node/TypeScript AI service.
    • Design and ship backend features end to end, from data model and API to automated tests, inside a large, heavily tested codebase.
    • Build and integrate an AI learning assistant into the platform, with retrieval over course content, guardrails and evaluation.
    • Integrate billing, push notifications, analytics and attribution, and privacy consent across web and mobile, in four languages.
    • Work in a distributed team with stacked pull requests, code review, CI and technical documentation.
    • Laravel
    • Nuxt
    • Flutter
    • TypeScript
    • Claude
    • PostgreSQL
  2. 2026 · Present

    Rosario · Remote

    Pegasus Studio

    Co-founder & Lead Developer

    Software studio for small and mid-sized businesses: websites, web apps, points of service and automation.

    • Lead the technical side of every engagement, from scoping to deploy on our own infrastructure.
    • Shipped an online shop with admin panel, a lobby kiosk, lead sites and a multi-tenant WhatsApp sales agent.
    • Next.js
    • Laravel
    • PostgreSQL
    • Docker
    • Claude
  3. Oct 2023 · Nov 2025

    Montevideo, Uruguay · Remote

    Sumeria

    Technical Leader / Senior Laravel Developer

    Software factory and product development company serving small businesses in LatAm and Miami.

    • Estimated, designed and built modular CRMs and core products on Laravel.
    • Reviewed and corrected the team's code, delegated and managed tasks, planned scalable solutions.
    • Laravel
    • Vue
    • MySQL
    • Docker
  4. May 2021 · Jan 2025

    France · Remote

    IIDI Agency

    Full-Stack Web Developer

    French digital agency delivering sites, shops and custom systems to its clients.

    • Built systems with Laravel, React, Vue and native PHP; presentation sites, e-commerce and custom modules for WordPress, PrestaShop and Shopify.
    • Managed VPS servers on Ubuntu and Debian: OpenLiteSpeed, Nginx, Apache, Cloudflare and DNS.
    • Laravel
    • React
    • Vue
    • PHP
    • Nginx
  5. Aug 2020 · May 2021

    Chile · Remote

    DataByte

    Full-Stack Web Developer

    Server housing company with a custom software division.

    • Worked on Laravel enterprise software that connected clients with their server data and let them publish a small site from the same system.
    • Created and maintained WordPress sites with custom modules and integrations.
    • Laravel
    • WordPress
    • MySQL

Education

Systems Engineering
Universidad Tecnológica Nacional
2020 · In progress
University Technician in Programming
Universidad Tecnológica Nacional
2022 · 2023Completed
Bachelor in Economic Sciences
La Salle
2014 · 2018High school

Languages

Spanish (native), English (professional)

Writing

Cases and notes from the work.

Questions

The ones that come up first.

01What kind of work are you looking for?

Senior full-stack roles where I own features end to end, ideally with an AI component. I also take a small number of projects through Pegasus Studio when the fit is right.

02What is your core stack?

Laravel and PostgreSQL on the backend, Next.js or Nuxt on the web, Flutter on mobile, TypeScript everywhere else. For AI, Claude and Gemini with proper retrieval, guardrails and evals.

03Do you work with international teams?

Yes. I have worked remotely for companies in Austria, Uruguay, France and Chile, in English and Spanish, with PR-driven workflows and asynchronous communication.

04Do you design too?

I design the interfaces I build, and I produce the visual assets with AI when a client has no photography: product sets, films and stills, art-directed to a single palette.

Contact

Let's build something that lasts.

Open to senior full-stack roles and a small number of projects. English or Spanish, any time zone.

[email protected]