Freelancer profile translated to English.
Back to original languageAbout Marc
I design and build multi-tenant SaaS platforms on Supabase and PostgreSQL. If you need a robust backend with Row Level Security, triggers, SQL functions, and Edge Functions, I can help you from architecture to production deployment.
I created Qubbie, an all-in-one hospitality management system. I also develop automation projects with n8n, AI agents, and RAG systems with pgvector for companies in various sectors.
Types of projects I manage:
— Multi-tenant database architecture (Supabase/PostgreSQL)
— Complete MVPs with Next.js + Supabase + Vercel
— Business automations with n8n and AI agents
— API integration, OAuth 2.0, and payment systems
— Technical consulting for hospitality.
Stack: Supabase, PostgreSQL, Next.js, React, Vercel, Flutter, n8n, OpenAI, pgvector, Claude Code.
I work agilely, communicate transparently, and deliver quickly. If you're looking for someone who understands both the technical and business sides, let's talk.
Spanish
Native or bilingual
Catalan
Native or bilingual
English
Fluent
Can work on-site
Barcelona (up to 50km), Tarragona (up to 50km), Valencia (up to 50km), Madrid (up to 50km)
Experience
- Qubbie.io — SaaS para HosteleríaCo-founder & CEO & Lead DeveloperJanuary 2024 - Today (2 years and 7 months)Barcelona, SpainMulti-tenant architecture: shared DB + tenant_id, RLS policies, planned evolution to per-client schemas. 97 tables, 56 views, 303 triggers, ~200 SQL functions, 12 Edge Functions, 4 custom schemas in Supabase. Modules: HRMS, purchasing, inventory, reservations, AI receptionist, kitchen management, analytics. Next.js + Vercel, Flutter mobile app, Square OAuth 2.0.
- AI Gain — Freelance Automation AgencyFounder & Automation SpecialistJanuary 2025 - Today (1 year and 7 months)End-to-end automation projects for companies: n8n workflows, API integration, AI agents. ■ Development of solutions with Supabase, OpenAI, and Claude for optimizing operational and commercial processes. Clients from multiple sectors: hospitality, retail, services.
- LiauFounder & Product OwnerJanuary 2025 - Today (1 year and 7 months)■ Digital publishing platform: short books (50-100 pages) sold on own website and Amazon KDP. ■ "Let It Out" Collection: 7 titles on communication and personal development. Automated production pipeline.
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