Freelancers pentru angajare în Brazil
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Angajează pe carlosd178
I’m a results-driven full-stack developer with strong expertise in modern front-end frameworks and backend technologies. I specialize in building elegant, scalable web applications using React, Next.js, Vue, Nuxt, and Tailwind CSS, while delivering robust server-side solutions with Laravel, NestJS, Django, FastAPI and...I’m a results-driven full-stack developer with strong expertise in modern front-end frameworks and backend technologies. I specialize in building elegant, scalable web applications using React, Next.js, Vue, Nuxt, and Tailwind CSS, while delivering robust server-side solutions with Laravel, NestJS, Django, FastAPI and Node.js. My experience includes creating interactive 3D experiences with Three.js and developing decentralized applications powered by Web3 and smart contracts. I enjoy translating complex requirements into clean, efficient code and intuitive user experiences. With a focus on performance, maintainability, and best practices, I help businesses launch high-impact digital products, from responsive websites to blockchain-based platforms, on time and at scale. mai puțin -
Angajează pe melopgabriel
I am a Full Stack Developer with over 7 years of experience building modern, scalable, and high-performance web applications. I have delivered a wide range of solutions, including e-commerce platforms, SaaS products, custom dashboards, CRM systems, real-time applications, and RESTful/API-driven platforms. My...I am a Full Stack Developer with over 7 years of experience building modern, scalable, and high-performance web applications. I have delivered a wide range of solutions, including e-commerce platforms, SaaS products, custom dashboards, CRM systems, real-time applications, and RESTful/API-driven platforms. My expertise covers both frontend and backend development, allowing me to handle complete project lifecycles from planning and architecture to deployment and maintenance. On the frontend, I work extensively with modern frameworks such as React, Vue.js, Next.js, and Tailwind CSS to create responsive, intuitive, and user-friendly interfaces. On the backend, I specialize in technologies like PHP, Laravel, Node.js, and Python, building secure, scalable, and optimized server-side applications and APIs. I also have strong experience with database design and management using MySQL, PostgreSQL, and MongoDB, as well as cloud services, third-party integrations, authentication systems, payment gateways, and real-time communication technologies. Core Skills: 🔹Frontend: React.js, Next.js, Angular.js, Vue.js, Nuxt.js, Tailwind CSS, SCSS, Webpack 🔹Backend: Laravel, Node.js, Express.js, Python, Shopify, Jommla, Wordpress, CI, RESTful APIs, Microservices 🔹Databases: MySQL, PostgreSQL, MongoDB 🔹DevOps: Docker, Git, CI/CD 🔹Testing: PHPUnit, Jest, Cypress Proficient in machine learning, NLP, and AI integrations, with practical experience in platforms like OpenAI GPT, LangChain, n8n, Zapier, Make (Integromat), and custom Python automation. From lead enrichment and chatbots to automated content generation and intelligent scraping, I deliver automation that saves time and drives results. 🔹LLM APIs: OpenAI, Google PaLM, Cohere, Hugging Face 🔹Automation: n8n, Zapier, Make, Python scripting 🔹Data: Web scraping, ETL pipelines, data parsing,PowerBI 🔹AI Tools: LangChain, Pinecone, Vector Search, RAG 🔹Custom Solutions: Chatbots, document automation, AI assistants 🔹Frameworks: TensorFlow, PyTorch, Scikit-learn, XGBoost, Keras, spaCy, Hugging Face Transformers, OpenAI GPT-4, BERT, LLaMA, Claude, Gemini mai puțin -
Angajează pe AnjosGustavo
I collaborate with startups and enterprises to build robust, scalable web applications that deliver measurable business outcomes—from concept to production. I don’t just build features; I deliver production-ready software that stands up to real users, real traffic, and real complexity. As a Full-Stack Developer and...I collaborate with startups and enterprises to build robust, scalable web applications that deliver measurable business outcomes—from concept to production. I don’t just build features; I deliver production-ready software that stands up to real users, real traffic, and real complexity. As a Full-Stack Developer and AI Specialist, I bring a unique advantage: I design and build the complete product end-to-end—clean UX, reliable APIs, secure infrastructure—then layer in AI where it genuinely drives ROI (automation, intelligence, personalization, and speed). From full SaaS platforms and marketplaces to internal tools and admin dashboards, I handle the full engineering lifecycle: architecture, implementation, deployment, monitoring, and iteration. And when AI is part of the product, I make sure it’s not just a prototype—it’s stable, scalable, and integrated into real workflows. 🚀 My Core Expertise & Services 1) End-to-End Full-Stack & SaaS Development (Primary) - Building modern web apps with Next.js, MERN, and Ruby on Rails, Fastapi, Django - SaaS platforms, marketplaces, multi-tenant apps, and admin dashboards - Secure backends with JWT, RBAC, scalable API design (REST/GraphQL), and clean architecture - Production deployment, performance optimization, logging/monitoring, and long-term maintainability 2) AI Systems & Automation (Secondary) - AI Agents & Multi-Agent Systems with LangChain, LangGraph, AutoGen, and CrewAI - RAG Systems using Pinecone, ChromaDB, FAISS, and Qdrant for real-time knowledge retrieval - LLM integration (GPT-5, Claude, Gemini, Llama, Mistral) for customer support, ops, analytics, and internal tools - AI chatbots & voice agents with Twilio, Vapi, Livekit, VoiceFlow, ElevenLabs, and WebSockets 3) Workflow Automation & Integrations - No-code/low-code automation with n8n, Make.com, Zapier - CRM integrations (HubSpot, Salesforce, GoHighLevel) for onboarding, lead scoring, and sales automation - Connecting tools like Slack, Notion, Airtable, DocuSign, and more ✅ Why Clients Hire Me - Full-Cycle Ownership: From planning and architecture to deployment and optimization - Speed to Market: I can deliver an investor-ready MVP in as little as 10 days - Business-First Engineering: I build what moves metrics—revenue, conversion, automation, cost reduction, and retention 📩 Let’s Build Together If you need a developer who can build the full product end-to-end—and bring AI when it meaningfully improves outcomes—click “Invite” or “Send Message” and let’s talk. mai puțin -
Angajează pe jeferson0993
Hi! I’m a battle-tested full-stack developer with over 8 years of experience shipping production-grade web and mobile applications for startups and enterprises. Core Expertise & Tech Stack - Frontend: React, Next.js (App Router & Page Router), Angular, TypeScript, React Native (iOS & Android) - UI Frameworks:...Hi! I’m a battle-tested full-stack developer with over 8 years of experience shipping production-grade web and mobile applications for startups and enterprises. Core Expertise & Tech Stack - Frontend: React, Next.js (App Router & Page Router), Angular, TypeScript, React Native (iOS & Android) - UI Frameworks: TailwindCSS, Shadcn UI, Radix UI, Bootstrap, MUI, Chakra UI - Backend: Node.js/Express, NestJS, .Net, Python/FastAPI, Django - Blockchain & Web3: Ethereum, Solidity smart contracts, Web3.js, Ethers.js, wallet integration, dApp development, token standards, transaction handling - Databases: PostgreSQL, MongoDB, Supabase, Firebase - Cloud & DevOps: Git, Docker, CI/CD, AWS, Vercel, Digital Oceans, Cloudflare - Testing: Jest, React Testing Library, Playwright, PyTest - Code quality: ESLint, Prettier, Husky, lint-staged I specialize in modern AI agent platforms and have extensive experience integrating OpenAI (GPT-4, GPT-4o, o1), Claude, Gemini, Grok, and other LLMs. I focus on delivering low-latency, high-quality conversations with smart prompt engineering, tool calling, and streaming responses. What I Deliver - Pixel-perfect, fully responsive, and accessible UIs - Clean, modular, strongly typed TypeScript code - Well-documented APIs and thorough Git history - Optimized performance (LCP < 1.5s, high Lighthouse scores) - Secure, scalable backend architecture - Complete AI agent experiences that feel instant and intelligent - On-time delivery with daily updates and clear communication Available full-time (40+ hours/week), excellent English, and ready to jump into your project immediately. Let’s turn your idea into a world-class product. Message me! mai puțin -
Angajează pe walterm021
I’m a Senior Fullstack Developer with strong expertise in both frontend and backend development, building scalable and high-performance web applications. I work confidently with modern frameworks, APIs, databases, and cloud services to deliver complete end-to-end solutions. I have solid problem-solving skills and can...I’m a Senior Fullstack Developer with strong expertise in both frontend and backend development, building scalable and high-performance web applications. I work confidently with modern frameworks, APIs, databases, and cloud services to deliver complete end-to-end solutions. I have solid problem-solving skills and can design clean architectures that are maintainable and efficient. I collaborate well with cross-functional teams, mentor junior developers, and contribute to code quality through reviews and best practices. I’m also adaptable and continuously learning new technologies to stay current in a fast-changing industry. mai puțin -
Angajează pe natanr28
How can I help you? - I can help you build scalable web applications for startups and businesses. - I can help you create modern dashboards, SaaS platforms, and custom internal tools. - I can help you automate repetitive processes using AI and smart workflows. - I can help you improve user experience with clean,...How can I help you? - I can help you build scalable web applications for startups and businesses. - I can help you create modern dashboards, SaaS platforms, and custom internal tools. - I can help you automate repetitive processes using AI and smart workflows. - I can help you improve user experience with clean, modern UX/UI design. - I can help you design software architecture that is secure, scalable, and maintainable. - I can help you integrate APIs, automation tools, and business systems into one workflow. - I can help you build AI-powered assistants, routing systems, and intelligent automations. - I can help you create branding pages and websites for startup companies. - I can help you improve interior spaces with modern, smart design concepts. - I can help you create 3D architectural models and visualizations using SketchUp. Why work with me? - I focus on solutions that support your business goals, not just writing code. - I combine development, automation, UX/UI, and design in one workflow. - I build systems that are scalable, maintainable, and ready for growth. - I communicate clearly and keep projects organized from planning to delivery. - I work in milestones, provide updates, and incorporate feedback quickly. - I care about clean architecture, user experience, and long-term reliability. - I can contribute both technical execution and creative problem solving. - I provide documentation and handover so your team can confidently manage the project. How do I work? - I start by understanding your goals, requirements, and project scope. - I plan the architecture, workflow, and user experience before development. - I build in iterations with demos and feedback during each stage. - I test, refine, and optimize before launch. - I provide support, documentation, and stabilization after delivery. mai puțin -
Angajează pe elbr
I’m a music producer and audio engineer specialized in turning ideas into professional, release-ready tracks. Since 2021, I’ve been working with artists from Brazil, the US, and Europe across different genres. My main focus is mixing and mastering, where I apply precision, clarity, and attention to detail to deliver...I’m a music producer and audio engineer specialized in turning ideas into professional, release-ready tracks. Since 2021, I’ve been working with artists from Brazil, the US, and Europe across different genres. My main focus is mixing and mastering, where I apply precision, clarity, and attention to detail to deliver a clean and balanced sound. I also have strong experience in beat production, vocal recording and editing, and song arrangement, which allows me to support the entire creative process, from the first idea to the final master. My goal is always to enhance the artist’s vision while making the track sound competitive on all platforms. If you’re looking for someone who understands both the technical and creative side of music, I can help bring your track to the next level. mai puțin -
Angajează pe belondesign
My name is Luan, I am a front-end developer and I usually work with the creation of web pages and ecommerce. I have a degree in Internet systems and I am a specialist in UX Design, I have more than 5 years of career as a developer and I guarantee the quality and efficiency of my projects. Among my skills are HTML,...My name is Luan, I am a front-end developer and I usually work with the creation of web pages and ecommerce. I have a degree in Internet systems and I am a specialist in UX Design, I have more than 5 years of career as a developer and I guarantee the quality and efficiency of my projects. Among my skills are HTML, CSS, Javascript, Wordpress, woocomerce, Elementor, illustrator, photoshop, SEO, website optimization, database and much more. Please contact me. mai puțin -
Angajează pe MarkRios
Service 24h Let me know what you need via chat. - Graphic Designer - Images / Photos - Editing, Retoucher an manipulator - Flyers - Banners - Posters - Infographics - Professional photographer (...)Service 24h Let me know what you need via chat. - Graphic Designer - Images / Photos - Editing, Retoucher an manipulator - Flyers - Banners - Posters - Infographics - Professional photographer (...) mai puțin -
Angajează pe SostenesApollo
I’m a Full-Stack Developer specializing in building fast, secure, and scalable web applications for startups, agencies, and growing businesses. I work across the entire development lifecycle — from frontend user experience to backend architecture and production deployment, ensuring every project is built to perform...I’m a Full-Stack Developer specializing in building fast, secure, and scalable web applications for startups, agencies, and growing businesses. I work across the entire development lifecycle — from frontend user experience to backend architecture and production deployment, ensuring every project is built to perform reliably in real-world environments. With strong experience in React and modern frontend development, I create responsive, intuitive interfaces that deliver smooth user experiences. On the backend, I build secure and efficient systems using Node.js, designing APIs and infrastructure that scale as your business grows. My DevOps background allows me to handle deployments, CI/CD pipelines, server configuration, and performance optimization so your product runs efficiently and stays stable under load. I also work with Rust when performance and system-level reliability are critical, bringing an extra layer of efficiency to demanding applications. For businesses focused on eCommerce or content platforms, I develop and optimize Shopify and WordPress solutions that are fast, secure, and conversion-focused. I believe great development is not just about writing code , it’s about understanding business goals, solving real problems, and delivering solutions that create measurable value. I prioritize clear communication, clean architecture, and long-term scalability in every project I take on. If you’re looking for a dependable developer who can take ownership of your project and deliver production-ready results, I’d be glad to work with you. Let’s build something solid. mai puțin
