Full-stack & AI engineer · Barcelona · ES / EN Taking on projects

Morales Viera Apps · Software · AI agents

I build mobile apps websites AI agents custom software data dashboards that actually work.

I create apps, websites and AI tools for businesses. I handle everything, from the idea to the launch, and explain it without jargon.

I’ve worked with
MediQuoHarbour.SpaceAWARE ClinicLadetecPinkzebraNorth Meridian
What I can do

From idea to a product
in your hands

One person for your whole project, start to finish.

Mobile apps

Apps for iPhone and Android, published on the stores.

Websites and platforms

Websites, online shops, bookings, payments and customer areas.

AI agents

Assistants that answer your customers on WhatsApp, and repetitive tasks that run on their own.

Data and forecasting

Models that anticipate sales, customer churn or demand, explained clearly.

Custom software

Internal tools and connections between the programs you already use.

Rescue and quality

I review and fix apps or websites that break, and make sure they don’t break again.

Packages and pricing

Fixed price, before we start

The first call is free. Then you get the price and the dates in writing.

Web

Landing page or company website

From€1,2001 week

A fast website that shows up on Google and brings you customers. You can edit the texts yourself.

Custom designGoogleContact form
Get a quote →
Platform

Website with bookings or payments

From€3,9002 weeks

Your customers book, pay and get their own private area. You manage everything from a dashboard.

BookingsPaymentsAdmin dashboard
Get a quote →
Mobile

App for iPhone and Android

From€4,9004 weeks

Your app on the App Store and Google Play, with notifications and widgets. I also handle publishing it.

iPhone + AndroidNotificationsPublishing
Get a quote →
Artificial intelligence

AI agent or automation

From€2,9002 weeks

An assistant that answers your customers on WhatsApp, or tasks that run on their own, like sending invoices to your accounting software.

WhatsAppDocumentsInvoices
Get a quote →
Audit

Review of your app or website

Fixed price€4501 week

Is your app or website failing? I tell you what’s wrong, what to fix first and what it costs.

Clear reportSecurityAction plan
Book a review →
Maintenance from €390/month, or €45/hour for one-off jobs. Prices exclude VAT.
  1. 01

    Free call

    30 minutes to understand what you need.

  2. 02

    Fixed proposal

    Price and dates in writing within 48 hours.

  3. 03

    Weekly demo

    Every week you try what I’ve built so far.

  4. 04

    Launch

    I publish it and fix any bug for free for 30 days.

Projects

Things I’ve built
and launched

My own products and client work, all in use.

Live site 01 / 06
My app · Android and iPhone · 2026

Ritual

A habit app you use from your home screen: tap a circle and the day is marked.

  • For Android and iPhone
  • Website in 7 languages
  • No accounts, no ads
KotlinSwiftUIWidgets
ritualhabits.pages.dev
Ritual’s website: mark the day without opening the app, with the day’s habit widget
Live site 02 / 06
Client · AWARE Clinic · Mexico · 2025

Patient portal

The clinic’s patients create their account, book appointments with their doctor and check their medical history, with the security health data demands.

  • Appointments linked to each doctor’s calendar
  • Medical records protected under HIPAA rules
  • Built from scratch and in use today
NuxtTailwindHealth
Aware* · patient dashboard
Recreation of the dashboard: patients see their appointments, their health goal and their test results.
Live site 03 / 06
I helped build it · iPhone, Mac and Android · 2026

Evenwise

An app to keep track of your money: take a photo of your shopping receipt and it splits it across categories, so your budget adds up to the cent.

  • Encrypted on your phone, with no account and no tracking
  • Website in 4 languages, with a waitlist for the launch
  • My part: the end-of-day and budget notifications, on all three platforms
SwiftKotlinReact
Evenwise on iPhone: net worth of €19,795.89 with its chart over time Evenwise on iPhone: money left to assign this month, with the bar of what is already assigned
Screenshots of the app on iPhone, with its sample data.
Private beta 04 / 06
My app · iPhone and Android · 2026

Forja

An app to log your gym workouts and see how you progress.

  • Over 800 exercises explained
  • Rest timer on the lock screen
  • Progress charts and personal records
React NativeExpoAnimations
Live site 05 / 06
My company · Barcelona · 2026

North Meridian

My AI automation company for small businesses, co-founded with Samuel Suárez. We take repetitive work off your team’s plate.

  • WhatsApp assistants that answer your customers
  • Invoices that land in your accounting software on their own
  • Two-week audit at a fixed price
Next.jsAI agentsAutomation
north-meridian.dev
North Meridian’s home page: «Stop moving data. Move your business.» with the isometric lighthouse illustration
Demo on request 06 / 06
My own service · 2026

Renderdrift

Checks your website after every change and warns you if something looks broken, before your customers notice.

  • Compares every page on desktop, tablet and mobile
  • Caught 6 out of 6 test bugs, with no false alarms
  • Alerts on Slack or Telegram
PlaywrightPostgreSQLReact
Renderdrift · review
Real video: it compares the good version of the site with the new one, marks in red what changed, and the change is rejected with one click.
About me

I turn ideas into software people use every day.

I’m Mayda, a software and AI engineer in Barcelona. I build complete products: what you see on screen and everything that runs behind it.

I work on the telemedicine platform at MediQuo, run North Meridian and I’m studying a master’s in Data Science.

4+years building software
5own products
ES·ENworking languages

Web

React, TypeScript, Next.js, Vue, Nuxt, Tailwind

Backend and databases

Node.js, Laravel, Python, PostgreSQL, Redis

Mobile

React Native, SwiftUI, Kotlin

AI and data

LLM agents, MCP, Claude Code, scikit-learn, TensorFlow

Deployment

Docker, Kubernetes, Cloudflare, Terraform

Experience

My journey

Health, education and e-commerce.

2026 — Now

North Meridian

Barcelona · Co-founder

  • AI automation for small businesses
May 2026 — Now

MediQuo

Telemedicine · Full Stack Developer

  • I build the video consultation platform for clinics and helped launch its new portal
  • I maintain the design system shared by all its products
Aug 2025 — Aug 2026

Harbour.Space University

Barcelona · Full Stack Developer

  • I built the university’s websites, including harbour.space, and tools for its departments
Mar 2025 — Jun 2025

AWARE Clinic

Via BYT Digital Agency · Freelance

  • I built their patient portal from scratch, with appointments and medical records
Oct 2024 — Mar 2025

Ladetec

Frontend Developer and Team Lead

  • I built Pinkzebra, a multi-vendor online shop with subscription purchases
  • I led the frontend team
In progressMaster’s in Data ScienceHarbour.Space University, Barcelona
2020 — 2025BSc in Computer ScienceUniversidad Central «Marta Abreu» de Las Villas, Cuba
FAQ

Before you ask

Do I need to know about technology?

No. I explain everything in plain words. You decide what you need; I take care of the rest.

Who owns the app or website?

You do. When we finish, I hand over all the access.

How do I pay?

In installments, as agreed in the proposal before we start.

Can you fix something someone else built?

Yes. I start with a review and tell you what needs fixing and what it costs.

What happens after launch?

I fix any bug for free for 30 days. After that you can continue with monthly or hourly maintenance.

Contact

Let’s talk.

Tell me what you need and by when. I reply in Spanish or English.