Freelancers for hire in Brazil
Showing 66 results
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I build production-grade software and automations that reduce manual work, improve decision-making, and scale smoothly. From customer-facing web apps to internal dashboards and AI-assisted workflows,, I focus on clean architecture, measurable outcomes, and reliable delivery. What I deliver: - Modern web apps &...I build production-grade software and automations that reduce manual work, improve decision-making, and scale smoothly. From customer-facing web apps to internal dashboards and AI-assisted workflows,, I focus on clean architecture, measurable outcomes, and reliable delivery. What I deliver: - Modern web apps & internal tools your team actually enjoys using - Secure, maintainable NodeJs backends with clean APIs and solid data models - Automation that eliminates busywork (routing, follow-ups, reporting, approvals) - AI-powered expereinces (support assistants, smart intake, content + decision flows) - Documentation + handover so your team can confidently own the system Core Stack: - Frontend: React.js, Next.js, Typescript (plus Vue ; Anular when needed) - Backend: NodeJS (Express / NestJS), C# / .NET core (ASP.NET) - Data: PostgreSQL, SQL Server, MongoDB (Prismar / Entity Framework) - Python: data processing, integrations, orchestration scripts - Automation: n8n, Make.com, Zapier, GoHighLevel - AI: OpenAI API (chat, classification, routing, structured workflows) - Integrations: Slack, Twilio, Notion, Airtable, Google sheets, Discord, Telegram, Landbot Typical wins for clients - Faster support and lead response with 24/7 AI assistance + smart routing - Better visibility with role-based dashboards for ops, billing, and analytics - Fewer errors and smoother ops with event-driven automations across tools - Cleaner scaling with tests, logging/monitoring hooks, and deploy-ready structure How I work - Discover & blueprint: map flows, define metrics, confirm scope - Build in iterations: short milestones, demos, and quick feedback loops - Launch & support: docs, handover, monitoring, and stabilization less
Hire natanr28
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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. less
Hire marcioazambujo
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I have delivered a wide range of web solutions, from e-commerce platforms and custom dashboards to real-time applications and API integrations. I prioritize collaboration, agile development, and continuous learning to stay ahead in an ever-evolving tech landscape. Core Skills: 🔹Frontend: React.js, Next.js,...I have delivered a wide range of web solutions, from e-commerce platforms and custom dashboards to real-time applications and API integrations. I prioritize collaboration, agile development, and continuous learning to stay ahead in an ever-evolving tech landscape. Core Skills: 🔹Frontend: React.js, Next.js, Angular.js, Vue.js, Nuxt.js, Tailwind CSS, SCSS, Webpack 🔹Backend: Laravel, Node.js, Express.js, Python, 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 less
Hire melopgabriel
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Hello and welcome to my freelancer profile! I am an experienced and versatile professional skilled in filmmaking, film editing, photography and art direction. With a keen eye for visual storytelling and a deep understanding of brand communication, I deliver creative, precise, and impactful narratives to every...Hello and welcome to my freelancer profile! I am an experienced and versatile professional skilled in filmmaking, film editing, photography and art direction. With a keen eye for visual storytelling and a deep understanding of brand communication, I deliver creative, precise, and impactful narratives to every project. My background as a copywriter in advertising agencies adds to my skill set, allowing me to create persuasive and captivating content that effectively communicates brand messages. Let's collaborate on your next project and create exceptional content together. less
Hire BrazilVisualArts
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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. less
Hire carlosd178
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Hi, I’m Gabe! I’ve spent the last decade helping businesses turn ideas into visual identities they’re proud of. I specialize in clean, timeless logos that are built to last. My goal is simple: designs that are beautiful, meaningful, and make people remember your brand. Let’s create yours together!Hi, I’m Gabe! I’ve spent the last decade helping businesses turn ideas into visual identities they’re proud of. I specialize in clean, timeless logos that are built to last. My goal is simple: designs that are beautiful, meaningful, and make people remember your brand. Let’s create yours together! less
Hire Gabevilanova
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matheussilva114 matheussilva114
$30 USD / hour
FULL-STACK ENGINEER| DATA SCIENTIST| AI SPECIALISTBrazilAs a Senior Full-stack developer, Data Scientist and AI/ML Engineer with over 6 years of experience, I specialize in designing, developing, and deploying Software Products with good machine learning solutions. My expertise spans across Machine Learning, Deep Learning, NLP, Computer Vision, and Generative AI,...As a Senior Full-stack developer, Data Scientist and AI/ML Engineer with over 6 years of experience, I specialize in designing, developing, and deploying Software Products with good machine learning solutions. My expertise spans across Machine Learning, Deep Learning, NLP, Computer Vision, and Generative AI, enabling businesses to harness the full potential of AI for automation, insights, and innovation. less
Hire matheussilva114
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My name is Andrelise and I am a native Brazilian, and I speak fluent Portuguese. I make great UGC videos, promoting products and services. I can make videos in English too but you should consider the accent.My name is Andrelise and I am a native Brazilian, and I speak fluent Portuguese. I make great UGC videos, promoting products and services. I can make videos in English too but you should consider the accent. less
Hire AndreliseCruz
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As a Senior Full-Stack Developer with strong hands-on experience building secure, scalable, and high-performance web applications using React, Next.js, Node.js, TypeScript, PostgreSQL, and cloud platforms, I deliver reliable and maintainable solutions tailored to business needs. With a solid background in both...As a Senior Full-Stack Developer with strong hands-on experience building secure, scalable, and high-performance web applications using React, Next.js, Node.js, TypeScript, PostgreSQL, and cloud platforms, I deliver reliable and maintainable solutions tailored to business needs. With a solid background in both frontend and backend development, I provide complete end-to-end solutions - including SaaS platforms, dashboards, marketplaces, and custom web applications—from architecture and development to deployment and optimization. Whether you need a new product built from scratch, an existing system improved, or complex third-party integrations, I bring clean code, strong system design, and consistent delivery. I focus on performance, scalability, best practices, and clear communication to ensure smooth and successful project outcomes. I’m here to support you with any development work using my extensive experience and technical expertise. Key Skillsets: - Frontend & UI Development • React, Next.js, TypeScript • Tailwind CSS, Bootstrap, Material UI • Responsive design, accessibility, performance optimization - Backend & API Development • Node.js, Express, RESTful APIs • Authentication & authorization (JWT, OAuth) • Server-side architecture & business logic - Databases & Data Layer • MySQL, PostgreSQL, MongoDB • Database design, optimization, migrations - Cloud, DevOps & Deployment • Vercel, AWS, Docker • CI/CD pipelines, environment configuration - Web Technologies • JavaScript (ES6+), TypeScript • HTML5, CSS3 - Integrations & Advanced Features • Third-party API integrations • Payment gateways, maps, analytics • Performance tuning and security best practices less
Hire eduardos912
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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! less
Hire albertoprata
