Companies, startups and Web3 teams that already have their problems solved
My clients and case studies
Seven years of delivered projects. Each one with the problem behind it, what I built and the number that changed.
Measured outcomes, not a gallery of screens
A good-looking portfolio says nothing about whether the project worked. That is why every case here starts with the business problem and ends with a figure the client can check in their own dashboard.
You get the challenge, the technical decisions I made and why, the stack it was built on and the outcome. If a project moved no number, it is not on this list.
2025Alberto Fuentes
Portfolio · Web development
+30%Project inquiries
A tailor-made portfolio for a web developer
- Astro
- TypeScript
- TailwindCSS
- +2
2025AAVE Chan
Web3 · DeFi · DAO
-60%Time on internal tasks
Internal web3 back-office tools for the AAVE Chan team
- React
- Next.js
- TypeScript
- +4
2026Trámites Registro Civil
GovTech · Public administration
+45%Organic visits
Certificate procedures site with guided forms
- Nuxt
- Vue.js
- TypeScript
- +3
2022Kaspersky
Cybersecurity
100Google PageSpeed
High-performance campaign landing that boosted conversions
- Astro
- TailwindCSS
- Figma
2022Unic Legacy
Web3 · NFTs
100%Collection sold out in 24h
The portal that turns your idols' moments into NFTs
- React
- Next.js
- TailwindCSS
- +3
2021Avem Finance
DeFi · Launchpad
1.1sInitial load
Launchpad and DeFi on Shiden, in the Kusama ecosystem
- Vue.js
- TailwindCSS
- Web3.js
- +3
2021Themar Solutions
Blockchain · Web3
+18%Landing conversion
Modern landing page for one of Andorra's first blockchain startups
- Vue.js
- TailwindCSS
- Docker
- +1
2021CryptoMaster Academy
EdTech · Crypto
+24%Course sign-ups
The school for cryptoeconomics and decentralized finance
- HTML
- CSS
- JavaScript
- +3
2023Impacting Digital
Digital Transformation
+25%Leads captured
A site that helps companies acquire digital DNA
- WordPress
- PHP
- JavaScript
- +2
2022Artistealo
Marketplace · Events
+22%Artist contacts
The marketplace of artists and suppliers for your events
- Python
- Django
- PayPal
- +1
2026The Attic Talents
Talent Agency
+18%Casting inquiries
A minimalist talent portfolio, fast and nearly cost-free
- Astro
- React
- Next.js
- +2
2024Plusholidays
Travel · Holiday rentals
+20%Rental conversion
The best holiday rentals in Spain
- Nuxt
- Vue.js
- TypeScript
- +3
2024Maarlab
Travel · Booking engine
+25%Sales
The flights-and-hotels booking engine for the Spring Hoteles group
- React
- TypeScript
- Vite
- +2
2023SaaSlidator
SaaS · AI
-90%Time validating an idea
Validate your business idea with AI before building it
- Next.js
- TypeScript
- TailwindCSS
- +3
2025Remolonas
Foodtech · Sustainability
+40%Subscription conversion
Subscription of local organic surplus food
- Astro
- HTML
- TailwindCSS
- +1
2026Zona Agraria
AgTech · B2B marketplace
MVPFrom idea to production in 6 weeks
The platform to negotiate agricultural supplies between professionals
- Django
- Python
- PostgreSQL
- +1
Services
How these results get built
Every case comes out of one of these services. Open the one closest to what you need and you will see how I work, what it includes and what it costs.
Custom software development
The full service: apps and systems built for your business, not templates.
Custom SaaS development
A multi-tenant product from idea to production, with subscriptions and billing.
MVP for startups
The minimum to validate with real users, with fixed scope and deadline.
AI for businesses
AI agents and processes that remove manual work and answer your customers.
n8n automations
Workflows connecting your CRM, ERP and email so nobody moves data by hand.
Web3 and blockchain development
Smart contracts and dApps on Ethereum, with costs and risks clear from day one.
Frontend web development
Fast, accessible interfaces with Core Web Vitals in the green from the first deploy.
Backend and API development
APIs, integrations and databases designed to grow without a rewrite.
Mentorship for developers
1:1 mentorship for developers looking for a job or ready to level up.
Want results like these? Let's talk!