Freelancers para contratar en Brazil
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Freelancers patrocinados
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Contratar romulonatan
Graphic Design, Branding, Packaging, Social Media Design. Graduated Media Studies Bachelor at Federal Fluminense University. In all my graphic design & branding work I guarantee you: - .AI or .EPS of essential vector files. - Editable .PSD, if necessary for your project. - .PNG versions applicable to different...Graphic Design, Branding, Packaging, Social Media Design. Graduated Media Studies Bachelor at Federal Fluminense University. In all my graphic design & branding work I guarantee you: - .AI or .EPS of essential vector files. - Editable .PSD, if necessary for your project. - .PNG versions applicable to different formats (black and white, light background, dark background, transparent background, etc.) according to your needs. menos -
Contratar 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. menos -
Contratar 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 menos -
Contratar marcioazambujo
I’m a Software Engineer with 11+ years of experience building scalable, production-grade applications end-to-end. I combine modern front-end development (TypeScript, React, Next.js) with robust back-end systems in Python (FastAPI/Django) and C#/.NET (ASP.NET Core), delivering clean architecture, well-documented APIs,...I’m a Software Engineer with 11+ years of experience building scalable, production-grade applications end-to-end. I combine modern front-end development (TypeScript, React, Next.js) with robust back-end systems in Python (FastAPI/Django) and C#/.NET (ASP.NET Core), delivering clean architecture, well-documented APIs, and reliable deployments. I specialize in bringing AI into real products not demos. I build and integrate LLM features such as RAG (retrieval-augmented generation), agents and tool-calling workflows, vector search, and AI chatbots, with a strong focus on security, accuracy, evaluation, monitoring, and cost/latency optimization. I’m also comfortable across data and infrastructure: PostgreSQL/SQL Server, MongoDB, Redis, Docker, CI/CD, and cloud deployments on AWS/Azure. If you need someone who can design, build, and ship software with strong engineering fundamentals and practical AI communicating clearly and delivering on time, I can help. menos -
Contratar 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. menos -
Contratar albertoprata
Python Expert With extensive experience building scalable, intelligent applications. My core strengths include: - Python & AI: Advanced skills in AI/ML development, deep learning, NLP, and data-driven solutions. - Web Scraping: Efficient and reliable data extraction using Python tools like BeautifulSoup, Scrapy,...Python Expert With extensive experience building scalable, intelligent applications. My core strengths include: - Python & AI: Advanced skills in AI/ML development, deep learning, NLP, and data-driven solutions. - Web Scraping: Efficient and reliable data extraction using Python tools like BeautifulSoup, Scrapy, and Selenium. - Full Stack Development: Proficient with React.js for building dynamic, responsive user interfaces. - Cloud & DevOps: Hands-on experience with AWS services such as Lambda, S3, EC2, and serverless architecture. - Backend Development: Skilled in Python frameworks like Django and Flask for creating APIs and backend logic. - Database Management: Expertise in both SQL and NoSQL databases. Let’s collaborate to bring intelligent software solutions to life! menos -
Contratar afonsoklein
Servicios de audio, Talento de voz, Producción de audio, Redacción de artículos, Redacción de Prompts para ChatbotsI'm a retired IT professional, who worked with Fortran, COBOL and Assembler, as well with Operating Systems Support, for 32 years, mostly with IBM Mainframes (VM and DOS/VSE OSes, CICS/VS) and Risc Servers (Aix, HACMP, Shark Storage). I have a License in Art Education / Visual Arts, by UEMG (Escola Guignard,...I'm a retired IT professional, who worked with Fortran, COBOL and Assembler, as well with Operating Systems Support, for 32 years, mostly with IBM Mainframes (VM and DOS/VSE OSes, CICS/VS) and Risc Servers (Aix, HACMP, Shark Storage). I have a License in Art Education / Visual Arts, by UEMG (Escola Guignard, Universidade Estadual de Minas Gerais, 1998), and a post-graduation in Contemporary Art (2001/2002) by the same institution. Also have courses in Art Education, Expography and Curation, by CEFART(Fundação Clóvis Salgado, BH,MG, 2022-2023). Currently, I'm working on personal projects involving Artificial Intelligence, towards image and video generation, as well as LLMs general usage. Sou um profissional de TI aposentado, com experiência anterior em Fortran, COBOL e Assembler, bem como Suporte de Sistemas, por 32 anos, predominantemente com Mainframes (VM,VSE,CICS) e servidores RISC IBM (Aix, HACMP, Shark Storage). Tenho Licenciatura em Educação Artística (modalidade Artes Visuais) pela UEMG (Escola Guignard, Universidade Estadual de Minas Gerais, 1998), e uma Pós-graduação em Artes Plásticas e Contemporaneidade (2001/2002) pela mesma instituição. Também cursei Arte Educação, Expografia e Curadoria pelo CEFART(Fundação Clóvis Salgado, BH, MG, 2022-2023). Atualmente estou trabalhando em projetos pessoais envolvendo Inteligência Artificial, para geração de imagem e vídeo, bem como LLMs para uso geral. menos -
Contratar 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! menos -
Contratar hilariodesign
Industrial Designer, 3D CAD Product Designer, with knowledge in process development and manufacturing in Plastic Injection, consumer products, office furniture concepts and project (part and sheetmetal design, woodworking, accessories, mockups, etc), 3D Printing, shop floor routines including operation instructions,...Industrial Designer, 3D CAD Product Designer, with knowledge in process development and manufacturing in Plastic Injection, consumer products, office furniture concepts and project (part and sheetmetal design, woodworking, accessories, mockups, etc), 3D Printing, shop floor routines including operation instructions, tech drawings, orientative sketches, PFMEA application, production line adaptation, and manufacturing processes activities. * 2025 Base price: USD $10 per hour or USD $50 per 6-hour day * * DECEMBER: Usually online 11:30am-8pm - Monday-to-Friday - Brazilian Time UTC -3 * menos -
Contratar 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. menos
