GSL
ESContact

Full-Stack Web Developer

Guillermo
Sánchez Legido

I build web products that work. Specialized in GIS and AI-augmented development.

View projects
~/projects
const developer = {
name: "Guillermo",
stack: ["Next.js", "React", "TypeScript"],
specialty: "GIS + Web",
location: "Galicia, Spain",
available: true,
}
▶Ready to build something?

//Featured Work

CorvoMaps
SaaS Product

CorvoMaps

B2B platform for automated professional cartography. Transforms geographic data into production-ready QGIS projects and technical PDF maps.

Next.js 15PayloadCMSPython/PyQGISPostGISDocker

Highlights

  • •NTPG compliance
  • •Job queue architecture
  • •Multi-CRS handling
View site
Os Cachivaches
Restaurant Website

Os Cachivaches

Full-stack restaurant website with sophisticated multi-level menu system, print-optimized PDFs, and QR code displays.

Next.js 15PayloadCMSReact 19TailwindSQLite

Highlights

  • •4-language i18n
  • •Interactive menus
  • •Print system
View site
In Tune Trainer
Web Application

In Tune Trainer

Ear training application for musicians. Users learn to recognize musical intervals by adjusting a pitch until it matches the target interval.

Next.js 16Web Audio APITypeScriptTailwind

Highlights

  • •Real-time audio synthesis
  • •Learn and exam modes
  • •Customizable tests
View site

Other Work

Event Website

Festival de Jazz de Lugo

Official website for the Lugo Jazz Festival.

Portfolio

Plástica

Portfolio for graphic designer Ana Rivera, aka Plástica.

Corporate Website

Avento Consultores

Commercial website for the consulting firm Avento.

//How I Work

AI-Augmented Development

I integrate AI into my workflow to deliver faster without sacrificing quality. The focus is on results: quick turnaround, clean code, and products that work.

  • 1Rapid iteration with AI assistance
  • 2Reviewed and maintainable code
  • 3Focused on delivering value

//Tech Stack

Frontend

ReactNext.jsTypeScriptTailwind CSS

Backend

Node.jsPythonPayloadCMS

Data

PostgreSQLPostGISSQLite

GIS

QGISPyQGISLeafletPostGIS

Tools

DockerGitAnsible

//About

Full-stack developer with over 10 years of experience. Specialized in the intersection of web development and geographic information systems (GIS). I build everything from SaaS platforms to corporate websites.

Lugo, Galicia
Available for remote work worldwide
Guillermo Sánchez Legido

//Contact

Let's Talk

Have a project in mind? I would love to hear more about it.

guillermo.s@gmail.com
+34 607 603 018
Send email