Freelance Systems Engineers in DublinFreelance Systems Engineers in Dublin
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Joao Melo's avatar
Joao Melo
Dublin, Ireland
Scalable Solutions with React & Python Expertise
11
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Scalable Solutions with React & Python Expertise
Cover image for EN] Enterprise Medical Management Platform
EN] Enterprise Medical Management Platform | [BR] Gestão Médica de Alta Escala [EN] Full-stack platform built for high-volume clinics. I eliminated 80% of scheduling conflicts and administrative bottlenecks using Next.js and Node.js+Prisma. Engineered a scalable PostgreSQL architecture with automated notifications, allowing the clinic to double its medical staff without increasing the administrative team. [BR] Plataforma Full-Stack arquitetada para clínicas de alto volume. Reduzi 80% dos conflitos de agenda e eliminei gargalos administrativos utilizando Next.js e Node.js+Prisma. Arquitetura escalável no PostgreSQL com notificações automatizadas, permitindo dobrar o corpo médico sem aumentar o time de recepção. 🛠️ Skills: Next.js, Node.js, PostgreSQL, TypeScript, API Integration.
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Cover image for [EN] High-Conversion React E-Commerce |
[EN] High-Conversion React E-Commerce | [BR] E-Commerce React de Alta Conversão 📝 Description: [EN] E-commerce architected for extreme performance and conversion. Migrating to React/TypeScript resulted in 1.2s load times (down from 5.8s), a 120% increase in online sales, and a drop in cart abandonment from 75% to 32% via optimized client-side caching and responsive UI. [BR] E-commerce arquitetado para conversão extrema e performance. A migração para React/TypeScript resultou em carregamento em 1.2s (antes 5.8s), aumento de 120% nas vendas e redução de 75% para 32% no abandono de carrinho através de cache otimizado (React Query) e UI responsiva. 🛠️ Skills: React.js, TypeScript, Tailwind CSS, MongoDB, UI / UX.
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Cover image for [EN] Intelligence Web Scraping Engine
[EN] Intelligence Web Scraping Engine | [BR] Motor de Web Scraping & Inteligência 📝 Description: [EN] High-complexity data extraction bypassing advanced WAF protections (Cloudflare/DataDome). Engine built with Node.js and Puppeteer Stealth, featuring an IP rotation system. Extracts massive datasets and synchronizes autonomously with Google Sheets via AWS for market intelligence. [BR] Extração de dados de alta complexidade com contorno de proteções WAF (Cloudflare/DataDome). Motor construído com Node.js + Puppeteer Stealth e sistema de rotação de rede. Realiza raspagem massiva e sincronização automatizada com Google Sheets via AWS para decisões de inteligência de mercado. 🛠️ Skills: Web Scraping, Node.js, Data Processing, JavaScript, Automation.
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Cover image for [EN] Sheets-to-UI Sync Engine |
[EN] Sheets-to-UI Sync Engine | [BR] Motor Dinâmico Sheets-to-UI 📝 Description: [EN] Integration engine transforming Google Sheets into a real-time Headless CMS. I developed a dynamic React dashboard that consumes spreadsheet data via API, instantly updating catalogs and prices without manual code intervention, centralizing operations and eliminating data entry errors. [BR] Motor de integração que transforma planilhas do Google em um Headless CMS. Desenvolvi um dashboard dinâmico em React + Node.js que reflete dados da planilha via API em tempo real. Solução ideal para atualizar catálogos e status sem intervenção de código, eliminando erros de data entry. 🛠️ Skills: React.js, Node.js, API Integration, JavaScript, Data Entry.
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