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Engineering

Web applications and SaaS

From the first prototype to a product with thousands of users. We build web applications and SaaS that can be operated, measured and grown.

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What you get

  • Working MVP in weeks, with the three features that validate the business
  • Multi-tenant architecture, plans, subscriptions and payments (Stripe, GoPay and others)
  • Admin panel, metrics and billing
  • Cloud infrastructure with automated deployment and backups
  • Performance and technical SEO handled from the start

How it works

  1. 01

    MVP scope

    We reduce the idea to what must be validated first and budget it.

  2. 02

    Design and architecture

    User flows, data model and infrastructure chosen for the expected growth.

  3. 03

    Build

    Fortnightly deliveries to a staging environment you can show to your first customers.

  4. 04

    Launch and growth

    Monitoring, product metrics and a release plan.

Results

  • A product your first customers can use and pay for
  • Infrastructure costs proportional to real usage
  • A technical base ready for new features, languages and integrations

What we have built

A live fitness-class platform with rooms of up to 50 participants, an invoicing product for freelancers with Verifactu compliance, a digital insomnia-therapy app and B2B portals for manufacturers and distributors.

Real time and video

We have experience with LiveKit, WebRTC and event-driven architectures on AWS for products where latency and stability matter.

Technology

TypeScript, Node.js, React, Angular, Vue, Astro, PHP and Laravel, PostgreSQL, DynamoDB, AWS, Cloudflare.

Related cases

  • GestiFactura home page with a sample invoice

    GestiFactura

    GestiFactura: legal invoicing for freelancers in one minute

    Online invoicing software for freelancers and small companies in Spain. Sequential numbering, VAT and IRPF calculated, PDF and email delivery, ready for Verifactu.

    Own productSaaSPDFVerifactu
  • Platform home page with a live class

    Project under NDA

    Live fitness classes for up to 50 participants

    Live-streaming platform where trainers design classes, invite an audience and broadcast workouts; members subscribe to the classes they choose.

    TypeScriptNode.jsAngular
  • Product home page with the app on a phone

    Project under NDA

    Digital insomnia therapy on the phone

    App that treats insomnia with a six-week cognitive behavioural therapy programme (CBT-I), with a web test, iOS and Android apps and payment with employee benefit vouchers.

    Mobile appiOSAndroid
  • caritas.es home page

    Cáritas Española

    Cáritas Española: online donations and campaigns on Drupal 10

    Cáritas Española website on Drupal 10 with custom modules for one-off and recurring donations through Redsys, PayPal and Stripe, fundraising campaigns and donor synchronisation with Salesforce.

    Drupal 10PHPRedsys

Shall we talk about your project?

Tell us what you need. We reply within one business day with a concrete proposal.

Let's talk