Santiago Backend Developer

I develop modern web applications with the latest technologies to create scalable and high-performance solutions that drive your business growth.

Santiago extendiendo la mano
web applications
Premium Support
Custom Development
Projects

Applications I've built

These are real products you can try right now: scroll and open each one's demo to see it from the inside.

Urban Moto

Urban Moto

Modular logistics and parcel platform: package intake, customer tracking and real-time route assignment.

  • Full Stack
  • Arquitectura event-driven
  • Geolocalización
View details
View details: Urban Moto
Turn —  Booking & Staff Management Platform

Turn — Booking & Staff Management Platform

Full-stack stateless platform built for real-time appointment scheduling, staff management, and media optimization. Features Redis session architecture, an edge-level WAF firewall, an image proxy, and marketing attribution analytics.

  • Full Stack
  • React
  • Node.js
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View details: Turn — Booking & Staff Management Platform
Service platform for independent therapists

Service platform for independent therapists

Multilingual international web platform for independent therapists in Switzerland: catalog, bookings and payment in a single flow, with agile service management and the offering sorted by area.

  • Full Stack
  • React
  • Node.js
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View details: Service platform for independent therapists
Untz

Untz

It combines a social network with a high-security ticket marketplace. Developed as a PWA with real-time architecture, it solves digital fragmentation by connecting fans, organizers, and staff in one single place.

  • Full Stack
  • React
  • Node.js
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View details: Untz
Snt-Flix

Snt-Flix

Collaborative multimedia management platform featuring intelligent moderation and automated data enrichment. A non-profit project designed for sharing open-access movies and series among friends.

  • Next.js
  • SSR
View details
View details: Snt-Flix

Project 1 of 8: Urban Moto

Stack

Technologies I use

The tools I work with every day, derived from the projects above. Every detail, with documentation and use cases, lives in the full catalog.

  • React
  • Node.js
  • TypeScript
  • MongoDB
  • Redis
  • PWA
  • Vite
  • Playwright
  • Vitest
  • React Testing Library
  • Stripe
  • Sass
  • Mercado Pago
  • Socket.io
  • WebSockets
  • Tailwind CSS
  • Next.js
  • JavaScript
  • HTML5
  • CSS3
  • Jest
Features

Everything the application brings with it

Every solution ships with these modules already solved: nothing to build or wire from scratch, they are configured around what your business already uses.

Notifications

Email, in-app, push, SMS and WhatsApp come from one service, with templates, scheduled sends and a delivery log.

Users and access

Roles and per-module permissions, controlled sessions, invitations and account recovery without a support ticket.

Database

NoSQL and MySQL models managed from a panel, with backups, migrations and media on a CDN.

Queues and jobs

Background work with retries, priorities and scheduled jobs that never block the user.

Tasks and operations

Shifts, shipments and stock as assignable tasks, with states, due dates and one owner per team.

Payments and subscriptions

Plans, recurring charges and invoicing wired to the payment gateway, with the full history in view.

Dashboards and metrics

Live indicators and exportable reports, so you can see how the business moves without asking for a document.

Files and media

Upload, optimisation and CDN delivery for images and documents, with versions and download permissions.

Security and audit

Token-based authentication, two-step verification and a record of every sensitive action in the system.

Integrations and API

A documented API with webhooks to connect payment gateways, billing or the CRM your team already uses.

Feature 1 of 10: Notifications

Certifications

Professional achievements and recognition

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AGENTS

Agents that work on their own

Each agent takes a whole task end to end — it understands the request, reads the data and acts — on top of the same modules you just saw.

Robotic hand pointing at a network of data

Customer care

Answers questions on WhatsApp, by email or on the site with your catalogue and policies, and hands the conversation to a person when it needs one.

A human hand about to touch a robotic hand

Bookings and schedules

Reads the real calendar, offers slots, confirms and reschedules without anyone touching the dashboard.

Code projected over a person

Search across your documents

Reads the manuals, contracts and procedures and answers citing where each fact came from.

Code in close-up on a dark screen

Questions about the data

Plain-language questions over the database: what sold, what slipped, what needs restocking.

The word future cut out in letters on a blue backdrop

Content and SEO

Writes, reviews and schedules posts in the voice of the brand, and suggests headlines before publishing.

Person typing code on a laptop

Day-to-day operations

Hands tasks to the team, watches deadlines and warns when stock runs short.

Agent 1 of 6: Customer care