SaaS MVP Developer for Startups in Spain
Transform startup concepts into launch-ready, revenue-generating SaaS platforms in 2 to 4 weeks for founders across Barcelona 22@ & Madrid.
Why Traditional Builds Stall Growth in Spain
Founders in Spain spend months and tens of thousands of dollars on agency overhead before putting their product in front of real paying customers.
Code-Level Precision & Verified High Performance
I provide rapid, end-to-end SaaS MVP engineering using battle-tested Next.js, Supabase, Stripe billing, and modular Tailwind components. You get a production-ready application with auth, subscription billing, onboarding, and transactional emails in weeks.
Enterprise Engineering Deliverables
Full-Stack Core Application
Complete business logic, database schema, and interactive frontend built for rapid user validation.
Subscription & Invoicing Engine
Stripe / LemonSqueezy integration with tiered pricing in EUR, usage limits, and customer portals.
Auth & Team Management
OAuth social login, email magic links, team workspaces, and invite workflows.
Analytics & Onboarding Funnels
PostHog analytics, automated welcome email sequences (Resend), and onboarding flows.
Zero Legacy Debt. Built for Modern Scale.
// Production Stripe Subscription Webhook Handler
export async function handleStripeWebhook(event: Stripe.Event) {
if (event.type === 'customer.subscription.updated') {
const sub = event.data.object as Stripe.Subscription;
await updateUserSubscriptionStatus(sub.customer as string, sub.status);
}
}Outcomes That Drive Revenue in Spain
Full Working Day Overlap with Barcelona & Madrid. Active in CET (UTC+1).
SEPA bank transfers and card checkout available with full international VAT reverse-charge compliance in EUR.
GDPR-compliant engineering architecture with localized data hosting and cookie-free telemetry.
Got Questions? Clear Answers for Spanish Clients.
What is included in the SaaS MVP sprint for founders in Spain?
Everything needed to accept paying customers: frontend UI, database schema, authentication, Stripe billing in EUR, transactional emails, and production deployment on Vercel.
Ready to Build Next-Gen Architecture for Your Brand?
Get direct access to a Senior Full-Stack & AI Architect. No account managers, no junior delegators. Sub-second load times guaranteed.