Hire the Best Legal Freelancers in Rio de Janeiro, BR

Looking for a reliable Brazilian Portuguese localization expert? I help global companies translate, localize, review and optimize content for the Brazilian market with native-quality results. Hi! I’m Alexander, a Brazilian Portuguese localization specialist with more than 25 years of experience helping international companies adapt content for Brazil. I support global businesses with accurate, natural and culturally appropriate Brazilian Portuguese localization across multiple industries, including SaaS, AI, e-commerce, education and digital products. My services include: ✔ Brazilian Portuguese Translation ✔ Website Localization ✔ Software & App Localization ✔ MTPE (Machine Translation Post-Editing) ✔ AI Content Evaluation ✔ AI Response Rating ✔ Proofreading & Editing ✔ Localization QA ✔ SEO Localization ✔ UX & UI Text Review ✔ Marketing Content Adaptation ✔ Terminology Management I focus on delivering localization that sounds natural to Brazilian users while maintaining consistency, clarity and brand voice. Clients appreciate my: • Fast communication • Reliable delivery • Attention to detail • Quality assurance • Human review • Long-term collaboration Whether you need one project or ongoing localization support, I’d be happy to help. Let’s discuss your project.

🏆 Free Consultation to assess your project and our fit 🏆 Guarantee of success for all projects and all agreed deliverables I'm an expert with 17 years of experience in creating Websites, Landing Pages, Mobile Apps, Web Apps, eCommerce websites, Marketplaces, Sales Pages and Brands. I have skin in the game and I'm deeply involved with all my clients and projects. With my experience and processes, I'll understand business requirements and anticipate problems and solutions, ultimately ensuring that our work together isn't just beautiful, but also functional, optimized and unique. I have 11 years of professional practice in Marketing, with an MBA degree, which allows me to bring a whole new layer of meaning to all of my designs, always prioritizing: - Business Performance (Sales, Institutional KPIs, etc) - Look & Feel - Branding Compliance & Consistency - Scalability, flexibility, testing and ownership In other words, I'm not just focused on creating beautiful designs, but ones that actually work as a long lasting digital assets. And even if you're completely lost in the process, unsure of what you need and want, I can still help you! I've worked on over 1000 projects and I will guide you to make well informed decisions at every step of the way. And regardless of your preference, if headless, HTML/CSS/JS, PHP, React, WordPress, Elementor, Webflow, Framer, Shopify, Big Commerce, WooCommerce, Hubspot, GHL or others, I can delineate the best course of action for the project. My main areas of expertise are: - DTC (Nutraceuticals, Telemedicine, Technology, Wellness, Beauty, Pharma, Cosmetics, Info Products, Personal Brands) - Fintech and Technology in general - Corporate Websites - Real Estate - Outsourcing Agencies - Consultants and Coaches - B2B SaaS (Cybersecutity, MedTech, LegalTech, RETech, Data Intensive tools, Financial Platforms and much more) - Crypto Platforms (Exchanges, NFTs, Arbitrage, Brokerages, P2P, General Defi, Marketplaces) - Creative/Influencer-led businesses - Enterprise Brands - eCommerce (A multitude of different areas, B2C and B2B) - Native Mobile Marketplaces and Social Networks (sports, lifestyle, family, nutrition, education and more) Let's have a call or chat and discuss possibilities!

👋 Introduction Hi, I’m a Senior Full-Stack Developer with 8+ years of experience building modern, scalable web applications for startups and growing businesses. I specialize in SaaS platforms, production-ready MVPs, dashboards, and AI-enabled web apps using React, Next.js, TypeScript, and Supabase. My strength lies in combining polished, UX-driven frontend development with a pragmatic, scalable backend, helping founders ship faster without accumulating technical debt. I don’t just write code - I help turn ideas into real, usable products that are ready for users, revenue, and growth. 📌 Current Status ✅ Available for freelance & long-term contracts 🌍 Open to working across all time zones ⏱️ 40+ hours/week if required 🧠 Professional Summary I help startups and product teams design, build, and scale frontend-heavy full-stack applications. My focus is on clean architecture, performance, and maintainability, ensuring the product remains easy to extend as the business grows. Whether you need: - A startup MVP from scratch - A SaaS dashboard with authentication & subscriptions - A Next.js frontend connected to Supabase or APIs - Or AI integrations using OpenAI I can take ownership from concept to production. 🚀 What I Build - SaaS platforms & subscription-based products - Startup MVPs & prototypes (production-ready) - Dashboards & admin panels - AI-powered web applications - Internal tools & data-driven apps 🧩 What I Handle - Frontend architecture & UI systems - Backend APIs, databases & authentication - Payments & subscription billing - Deployment, CI/CD & monitoring - Scaling & long-term maintainability 🛠️ Tech Stack & Skill Set 𝙁𝙧𝙤𝙣𝙩𝙚𝙣𝙙 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 - React.js - Next.js (App Router, Server Actions, SSR, SSG) - TypeScript & JavaScript (ES6+) - Tailwind CSS, shadcn/ui, Material UI (MUI) - Responsive & UX-focused UI development - State management (Redux Toolkit, Zustand) - Forms & validation (React Hook Form, Zod) - Data visualization (Chart.js, Recharts, D3.js) 𝑩𝒂𝒄𝒌𝒆𝒏𝒅 & 𝑭𝒖𝒍𝒍-𝑺𝒕𝒂𝒄𝒌 - Node.js, Python - Express.js & NestJS - Supabase (PostgreSQL, Auth, RLS, Realtime) - Firebase - REST & GraphQL APIs - Authentication & role-based access - Database design & optimization (PostgreSQL, MySQL, MongoDB) 𝑪𝑴𝑺 & 𝑬-𝑪𝒐𝒎𝒎𝒆𝒓𝒄𝒆 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 - WordPress Developer, WooCommerce - Shopify Developer, Shopify Admin API - PHP, Laravel - Custom E-commerce Solutions 𝑵𝒐-𝑪𝒐𝒅𝒆 / 𝑳𝒐𝒘-𝑪𝒐𝒅𝒆 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 - Bubble Developer - Adalo, Glide, Thunkable - AppSheet, Softr, Bravo Studio, AppMySite 𝑪𝒍𝒐𝒖𝒅 & 𝑫𝒆𝒗𝑶𝒑𝒔 - AWS, Docker, NGINX - CI/CD (GitHub Actions, GitLab CI) - Firebase, Supabase, Vercel, DigitalOcean - Linux Server Administration - Database Scaling & Performance Optimization 𝑨𝑰 & 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏 - AI Integration, LLMs - OpenAI API, Claude - AI Agents, RAG Pipelines - AI Automation Workflows - Document Processing & Voice AI 𝑷𝒂𝒚𝒎𝒆𝒏𝒕𝒔 & 𝑻𝒉𝒊𝒓𝒅-𝑷𝒂𝒓𝒕𝒚 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏𝒔 - Stripe Integration, Paystack, Flutterwave - Twilio, LiveKit, VoIP Systems - Mapbox Integration - LinkedIn Ads API 𝑺𝒂𝒂𝑺 & 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏𝒔 - Stripe (payments, subscriptions, billing) - OpenAI / LLM API integrations - Third-party API integrations - Webhooks & background jobs 𝑫𝒆𝒗𝑶𝒑𝒔 & 𝑻𝒐𝒐𝒍𝒊𝒏𝒈 - Vercel, AWS - Docker - CI/CD (GitHub Actions) - Monitoring & error tracking (Sentry, PostHog) - Git (GitHub, GitLab) 𝑷𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒗𝒊𝒕𝒚 & 𝑨𝑰 𝑻𝒐𝒐𝒍𝒔 - Cursor - GitHub Copilot - Claude Code - Replit / Lovable - Prompt Engineering & AI-assisted development 🧪 Experience Highlights - Built and shipped multiple SaaS platforms used by real customers - Delivered startup MVPs from idea to production in weeks - Designed secure Supabase backends with RLS and scalable schemas - Implemented subscription billing systems with Stripe - Created high-performance dashboards and admin panels - Integrated AI features to automate workflows and user interactions 🏷️ Tags / Keywords (SEO Optimized) Senior Full-Stack Developer, Frontend-Focused Full-Stack, SaaS Developer, MVP Developer, Startup Developer, Product Engineer, React Developer, Next.js Developer, TypeScript Developer, Supabase Developer, PostgreSQL, Stripe Integration, Dashboard Developer, Admin Panel Developer, AI Web Developer, OpenAI Integration, Subscription Billing, Scalable Web Apps 🤝 Why Work With Me? - Product-focused mindset (not just tasks) - Clean, maintainable, scalable code - Strong communication & ownership - Startup experience - I understand speed and quality - Long-term thinking, even for MVPs ✅ Closing Statement If you’re looking for a reliable senior developer who can take your idea seriously and turn it into a professional-grade product, I’d be happy to help. Let’s build something impactful 🚀

I'm a multilingual language specialist who has been studying languages since 2011 and teaching since 2018. I help businesses, professionals, and creators connect with global audiences through accurate translation, engaging educational content, and clear communication. I work alongside a team of qualified specialists in language education, design, proofreading, and marketing. When you hire me, you're not just hiring one freelancer — you're gaining access to a dedicated team focused on delivering high-quality results and consistent support. 📍 Translation & Localization Services (EN⇄PT, ES⇄PT, FR⇄PT) 📍 Language Tutoring & Coaching (online or corporate training) 📍 Subtitling, Captioning & Transcription (videos, interviews, podcasts) 📍 Proofreading & Editing (academic, marketing, legal, educational content) 📍 Content Creation for Language Education (workbooks, guides, lesson plans) 📍 Bilingual Workshops & In-Company Training (communication, pronunciation, soft skills) 📍 UGC & Scriptwriting for educational or marketing videos 📍 Administrative & Virtual Support in bilingual environments 📍 Design of Presentations & Educational Materials (using Canva, Google Slides, Figma) By combining language expertise, creativity, and strategic thinking, I ensure your message is clear, impactful, and culturally accurate. You’ll receive professional results, consistent communication, and reliable follow-up. Let’s work together to bring your project to life — with quality, confidence, and purpose.