AI Builder · Remote across Europe

Fromproblemtoproduct

Marcelo Pereira

About

I build AI agents, automations, and web products that solve real business problems. My clients are small teams and founders who need something built, not described. Recent work: a staffing SaaS in the Netherlands (security hardening, matching engine, WhatsApp dispatch), a rebrand and full website build for an Amsterdam-based wellness practitioner, and an AI sales pipeline that runs outreach end-to-end with human approval.

Before building, six years in premium hospitality across Europe, including a role at DoubleTree by Hilton Amsterdam, rated Top Talent. That environment taught me to identify broken processes and build fixes that get approved by people who care about results.

Available remotely across Europe.

Credentials

Leading with Generative AI

Harvard ManageMentor® · 2025

Sharpening Your Business Acumen

Harvard ManageMentor® · 2025

Marketing Essentials

Harvard ManageMentor® · 2025

Leveraging Your Networks

Harvard ManageMentor® · 2025

Generative AI for Finance

LinkedIn Learning · 2025

Administrative-Financial Assistant

Simples Análises · 2022 · 19/20

Work

In Development

AI Agent · Personal Assistant

Jarvis

A personal AI agent that orchestrates work and routes every request to the right model automatically.

Voice input. Multi-model routing. Iron Man HUD. Every request is classified and sent to the right model: Claude Sonnet for reasoning, GPT-4o-mini for classification, Tavily for real-time search, Manus for autonomous execution. Built across 20+ sessions with 268 automated tests at 100% pass. Agent 2 (Sales Pipeline) is live in production with its own dashboard: seeds companies from OpenKvK, enriches via Firecrawl and Tavily, qualifies leads against a 4-dimension scoring model, drafts personalized outreach emails, and holds every message for dual approval (voice or dashboard) before sending. MCP integrations: Obsidian vault, n8n workflows, GitHub, Supabase, Manus.

Claude SonnetGPT-4o-miniReactNode.jsSupabaseMCPn8nOpenKvKFirecrawl
5 MCP integrations2-layer routing268 automated testsSales Pipeline live
Jarvis AI agent dashboard
Live

Web · Branding · Client Work

Richard Body Treatment

Full rebrand and website build for an Amsterdam-based massage therapist.

From “Rich Sport Massage” to “Richard Body Treatment”: new identity, new site, new materials. Built and delivered in full. Complete design system from scratch (mint/dark green palette, Cormorant Garamond + Jost + DM Mono). Next.js 14 website with Framer Motion animations, scroll-reactive color gradient, and mobile-first refinement across 9 rounds of iteration. Engineering pass: SEO metadata, JSON-LD LocalBusiness schema, sitemap, canonical tags, Resend contact form with honeypot and rate limiting. PDF brochures generated via Playwright. Business cards, invoice generator, logo design, KVK name change guidance.

Next.js 14Tailwind CSSFramer MotionResendPlaywrightVercelClaude Code
Richard Body Treatment — Home
Client Work · Ongoing

SaaS · Engineering

Teacher Matching Engine

Technical collaborator on a live production platform: security, data integrity, and operational reliability on a system with real users and real bookings.

Joined an already-live platform as a technical collaborator. The work spanned a full security and access-control review, resolving a class of silent background-job failures that were affecting notifications, unblocking automated messaging dispatch, and correcting a chat privacy issue. Ran a deep audit of the matching engine and verified its scoring logic end to end against production data. Delivered a financial-architecture proposal establishing a single source of truth per cost type, refined with the client into an exception-based reconciliation model, and drove a compliance-reliability initiative ensuring every in-progress case (payments, certifications, approvals) has a visible owner and a path to resolution, rather than automation that quietly gives up.

TypeScriptSupabaseNext.jsLovablePostgreSQL
Dashboard
Live

SaaS · Expat Platform

Abroad-Assistant

One platform for everything that happens when you move to a new country.

AI chat by destination country. Tax estimator for 18+ EU countries. Live currency conversion. Budget tracker. Interactive map with relocation itineraries. Rebuilt from scratch in under 48 hours when the architecture needed replacing.

OpenAI APINext.jsSupabaseVercelTypeScript
AI Chat
APPROVED BY MANAGEMENT

Operational Strategy · Hospitality

LuminAir DoubleTree by Hilton Amsterdam

Four product initiatives conceived, documented, and approved at Amsterdam's #1 rated bar.

Top Talent · 4.8★ · 941 reviews · #1 Bar Amsterdam

Review Engine

Review Engine

75% decline in review velocity identified. NFC-based capture system designed. Approved: GM + Operations Manager.

Celebration Package

Celebration Package

Zero structured upsell for celebrations. 3-tier framework with Goldilocks pricing. Approved: General Manager.

GlamStar Strategy

GlamStar Strategy

Upsell system for premium cocktail. Script adopted in 2026 official LuminAir Service Commandments.

Golden Rules

Golden Rules

Service standards document authored. Some of it incorporated into Hilton regional management documentation.

Stack

AI MODELS

Claude (Anthropic)GPT (OpenAI)OpenRouterTavilyManusFirecrawl

FRONTEND

Next.jsReactTypeScriptTailwind CSSFramer MotionVercel

BACKEND & DATA

SupabasePostgreSQLPythonFastAPINode.jsResendPlaywright

AUTOMATION

n8nMCPClaude CodeManusLovable

PRODUCT

GitHubObsidianPostHogSentry

Have a problem
worth solving?

Or email directly: marcelo@marcelopereira.space

Available for new projects

Remote across Europe