Freelancers for hire in Brazil
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Hire marcellomessias
PROFESSIONAL OVERVIEW WHAT YOU REALLY GET WHEN YOU HIRE ME Hiring me is not just about getting drawings, models, or technical documentation. It is about having someone experienced on your side who understands what your project needs and helps you move it forward with confidence. When you work with me, my goal is...PROFESSIONAL OVERVIEW WHAT YOU REALLY GET WHEN YOU HIRE ME Hiring me is not just about getting drawings, models, or technical documentation. It is about having someone experienced on your side who understands what your project needs and helps you move it forward with confidence. When you work with me, my goal is to make your job easier, clearer, and more efficient. Here’s what I bring to your project: ✔ Fewer problems and unnecessary revisions I don't simply follow instructions line by line. I look at the project as a whole, identify inconsistencies, missing information, coordination issues, and potential technical problems before they become bigger headaches. ✔ More confidence in your deliverables Your documentation is developed with attention to accuracy, coordination, constructability, presentation, and applicable requirements. You can deliver your project knowing that someone experienced has carefully worked through the details. ✔ A professional who thinks with you Sometimes you don't need another person simply “drawing.” You need someone who can look at a problem and say: “Here is what I see, here is the risk, and here is a practical way we can solve it.” That is the kind of support I provide. ✔ Less technical workload for you Whether you are an architect, engineer, developer, contractor, or private client, I can take a significant portion of the technical documentation workload off your shoulders, allowing you to focus on your clients, business, design, and other priorities. ✔ Better coordination between design and construction A project needs to look good—but it also needs to make sense technically. I work to connect the design intent with the information required for permitting, coordination, pricing, and construction. ✔ A proactive approach I try to identify questions before someone else has to ask them. My experience allows me to anticipate potential issues and bring them to your attention early, when they are easier and less expensive to solve. ✔ Clear communication and accountability You will always know what is being developed, what information is needed, and where the project stands. I value professional communication, realistic deadlines, and taking responsibility for my deliverables. Most importantly: PEACE OF MIND. You don't have to wonder whether someone is simply completing tasks or actually paying attention to your project. I care about the final result. My role is to become an extension of your team—bringing technical experience, attention to detail, problem-solving, and a genuine commitment to helping your project succeed. You bring the vision. I help turn it into something clear, coordinated, practical, and ready to move forward. If you are looking for someone who can do more than just draw—someone who can think, coordinate, solve problems, and take your project seriously—let's talk less -
Hire 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. less -
Hire melopgabriel
I'm a Full-Stack Web, Mobile, Blockchain & AI Expert with extensive experience building modern, scalable, and high-performing digital products from concept to deployment. I specialize in building AI-powered chatbots and conversational agents — from customer support and lead-qualification bots to RAG-based knowledge...I'm a Full-Stack Web, Mobile, Blockchain & AI Expert with extensive experience building modern, scalable, and high-performing digital products from concept to deployment. I specialize in building AI-powered chatbots and conversational agents — from customer support and lead-qualification bots to RAG-based knowledge assistants — integrating LLM APIs (OpenAI, Claude) into production-ready backends. I help startups, agencies, and businesses transform ideas into production-ready applications by combining clean development practices with the latest AI and automation technologies. Whether you need a custom web platform, mobile application, AI-powered solution, or workflow automation, I deliver reliable, maintainable solutions focused on performance, scalability, and user experience. ⭐⭐⭐⭐⭐What I can help you with ⭐ AI Chatbots & AI Agents ⭐ AI Integration (OpenAI, Claude, Gemini, LangChain, MCP) ⭐ Workflow Automation (n8n, Make.com, Zapier) ⭐ Full-Stack Web Development (React, Next.js, Vue.js, Laravel, Node.js, PHP) ⭐ REST APIs & Third-Party API Integrations ⭐ Mobile App Development (React Native, Flutter, Android, iOS) ⭐ Database Design (PostgreSQL, MySQL, Supabase, Firebase) ⭐ Blockchain Development (Solidity, Go, Flutter) and ICO handling ⭐ WordPress & WooCommerce Development ⭐ Shopify Store Development & Customization ⭐ AWS, Vercel, DigitalOcean & Cloud Deployments ⭐ Performance Optimization & Bug Fixing ⭐⭐⭐⭐⭐Why clients work with me ⭐ Clean, scalable, and well-documented code ⭐Strong communication and regular progress updates ⭐ Detail-oriented with a focus on quality ⭐Fast turnaround without compromising reliability ⭐Long-term support after project delivery ⭐Problem-solving mindset for complex technical challenges I believe great software is more than just writing code—it's about understanding business goals and building solutions that create measurable value. I take ownership of every project and work closely with clients to ensure the final product exceeds expectations. If you're looking for a dependable developer who can build, improve, or automate your business with modern web, mobile, blochain and AI technologies, I'd be happy to discuss your project. less -
Hire matheussilva114
matheussilva114 matheussilva114
$30 USD / hour
Software Engineer | Web & Mobile Apps | AWS | AIBrazilI’m a Senior Full-Stack Software Engineer, Data Scientist, and AI/ML & Blockchain Engineer focused on building production-ready digital products from concept to deployment. I work across the full technology stack—from system architecture, backend infrastructure, APIs, databases, and cloud services to polished web...I’m a Senior Full-Stack Software Engineer, Data Scientist, and AI/ML & Blockchain Engineer focused on building production-ready digital products from concept to deployment. I work across the full technology stack—from system architecture, backend infrastructure, APIs, databases, and cloud services to polished web applications, intelligent automation, and user-facing experiences. My expertise spans: - Full-stack web application development - AI/ML and generative AI integration - Data engineering and data-driven systems - Blockchain and Web3 development - Cloud architecture and backend infrastructure - API and third-party service integrations - Intelligent workflow automation - Scalable SaaS and marketplace platforms Rather than treating AI, blockchain, data, and web development as separate disciplines, I combine them to solve real product and business problems. I can take ownership of the complete engineering lifecycle: understanding requirements, designing the architecture, building the product, integrating intelligent systems, debugging complex issues, optimizing performance, and deploying reliable production software. My focus is not simply writing code—it is building technology that is scalable, maintainable, commercially useful, and ready for real users. less -
Hire itazedo
I am a network administrator with a degree in Information Security, bringing nearly 20 years of experience in computer networks, virtualized environments, and Linux systems. My expertise spans a wide range of technologies, from VPN and security configurations to network virtualization, cloud infrastructure, and IT...I am a network administrator with a degree in Information Security, bringing nearly 20 years of experience in computer networks, virtualized environments, and Linux systems. My expertise spans a wide range of technologies, from VPN and security configurations to network virtualization, cloud infrastructure, and IT service operations. My Specialties: Designing and implementing medium and large-scale enterprise networks to ensure scalability, security, and optimal performance. Expertise in pfSense and OPNsense for firewall, VPN, L2TP, IPSec, DHCP, DNS, NAT, and other network services. Proficient in WireGuard VPN for secure, high-performance connections in diverse environments. In-depth knowledge of XCP-NG and Proxmox VE for virtualization, container management, and cloud infrastructure. Extensive experience with Oracle Linux, ensuring stable and secure enterprise Linux environments. Skilled in FreePBX (VOIP) and IVR (Interactive Voice Response) solutions for scalable voice services. Advanced understanding of switching technologies, including VLANs, TRUNK, LACP, and other essential network protocols. Integration and management of Kimai time tracking system for accurate activity billing and productivity monitoring. Implementation and customization of Zammad helpdesk system for streamlined support and ticketing workflows. Configuration and deployment of Ubiquiti equipment (UniFi, EdgeRouter, airMAX, UISP) for reliable wireless backhauls, point-to-point links, and enterprise-grade Wi-Fi solutions. Skills and Hands-on Experience: Proficient in working with Cisco routers and switches, ensuring high availability and network optimization. Experience with Synology NAS for network storage solutions. Expertise in AWS Lightsail, including cost optimization for EC2, Route53, RDS, VPC, Gateway, Load Balancer, and VPN setup. Oracle Cloud Infrastructure (OCI): Deployment and management of compute instances, VCNs, subnets, Internet Gateways, routing, security lists, and firewall policies, enabling secure, high-performance cloud-based infrastructures. Strong capabilities in network documentation to provide detailed, accurate infrastructure layouts for management and troubleshooting. less -
Hire AnjosGustavo
I help startups and businesses build scalable, production-ready web applications and AI-powered solutions—from architecture and development to deployment and optimization. Senior Machine Learning Engineer with a strong foundation in mathematics, probability, statistics, and software engineering, focused on...I help startups and businesses build scalable, production-ready web applications and AI-powered solutions—from architecture and development to deployment and optimization. Senior Machine Learning Engineer with a strong foundation in mathematics, probability, statistics, and software engineering, focused on transforming complex ideas into practical, reliable AI solutions. Experienced in model building, statistical learning, deep learning, Computer Vision, NLP, Generative AI, LLMs, RAG, and AI agents, with Python as the primary development language. Comfortable working across the complete ML lifecycle - from data preprocessing and feature engineering to model development, evaluation, optimization, and deployment. Also brings strong full-stack engineering experience, enabling AI models to be integrated into scalable, production-ready applications. Enjoys solving challenging technical problems with a thoughtful, data-driven approach. 🚀 Full-Stack & SaaS Development - React, Next.js, Node.js, Python, FastAPI, Django - SaaS platforms, marketplaces, dashboards, and internal tools - REST APIs, PostgreSQL, authentication, and third-party integrations - Cloud deployment, performance optimization, and maintainable architecture 🤖 Machine Learning & AI - End-to-end ML pipelines: data processing, training, evaluation, optimization, and deployment - Computer Vision, NLP, ASR, Transfer Learning, Reinforcement Learning, and Generative AI - LLM, RAG pipeline and Agentic AI - PyTorch, TensorFlow, Keras, scikit-learn, NumPy, Pandas, and SciPy My strength is connecting both worlds: I can develop intelligent models and integrate them into secure, scalable applications that solve real business and engineering problems. I look forward to building practical, reliable, and intelligent products together. less -
Hire 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. less -
Hire michela542
⭐ AI Agent Developer | Full-Stack SaaS Engineer | MVP & Automation Expert ⭐ I'm Michel Adelino, a Full-Stack AI Engineer with 6+ years of experience helping startups and businesses build AI-powered SaaS platforms, AI agents, chatbots, automation systems, and MVPs. I specialize in turning ideas into scalable products...⭐ AI Agent Developer | Full-Stack SaaS Engineer | MVP & Automation Expert ⭐ I'm Michel Adelino, a Full-Stack AI Engineer with 6+ years of experience helping startups and businesses build AI-powered SaaS platforms, AI agents, chatbots, automation systems, and MVPs. I specialize in turning ideas into scalable products using modern AI technologies, cloud infrastructure, and automation platforms. Whether you need an AI SaaS MVP, a custom GPT chatbot, a voice AI assistant, or workflow automation, I can deliver reliable and production-ready solutions. What I Can Build ✅ AI Agents & Multi-Agent Systems - OpenAI, GPT-4, Claude, Gemini, Llama - LangChain, LangGraph, CrewAI - RAG (Retrieval-Augmented Generation) - Knowledge Base AI Assistants ✅ AI Chatbots & Custom GPT Solutions - Customer Support Bots - Sales & Lead Generation Bots - Internal Business Assistants - Website & SaaS Chatbots ✅ Voice AI & Call Automation - VAPI, Retell AI, ElevenLabs, Twilio - Appointment Booking - Lead Qualification - Inbound & Outbound Calling Systems ✅ SaaS MVP Development - Multi-Tenant SaaS Platforms - Subscription & Billing Systems - Stripe Integration - Admin Dashboards - User Management & Authentication ✅ Workflow Automation - Make.com - Zapier - n8n - HubSpot - Airtable - CRM & API Integrations Tech Stack Frontend: Next.js, React, TypeScript Backend: Node.js, NestJS, FastAPI, Django, Laravel AI & LLMs: OpenAI, GPT-4, Claude, Gemini, Llama, LangChain, CrewAI, LangGraph Databases: PostgreSQL, MongoDB, Pinecone, Qdrant Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, Vercel Payments: Stripe Why Work With Me? ✔ Built AI SaaS products and MVPs for startups and businesses ✔ Strong experience in AI agents, chatbots, voice AI, and automation ✔ Full-stack development from architecture to deployment ✔ Clean, scalable, and maintainable code ✔ Fast communication and reliable delivery ✔ Business-focused approach with long-term scalability in mind Keywords AI Agent Developer, AI Engineer, OpenAI Developer, GPT-4 Developer, ChatGPT Integration, AI Chatbot Developer, Voice AI Developer, SaaS Developer, SaaS MVP Development, Full Stack Developer, Next.js Developer, Node.js Developer, FastAPI Developer, LangChain Developer, CrewAI Developer, Automation Expert, Zapier Developer, Make.com Expert, n8n Developer, RAG Development, LLM Applications, Stripe Integration, AWS Developer. Let's build your AI SaaS, chatbot, AI agent, automation system, or startup MVP. less -
Hire DiorIA26
Headline: AI Developer | Intelligent Agents Specialist | LangChain & Python Expert Summary: I specialize in building the "brain" of modern applications. As an AI Developer and Machine Learning student, I don't just use AI—I build autonomous systems that solve real-world problems. My focus is on creating Intelligent...Headline: AI Developer | Intelligent Agents Specialist | LangChain & Python Expert Summary: I specialize in building the "brain" of modern applications. As an AI Developer and Machine Learning student, I don't just use AI—I build autonomous systems that solve real-world problems. My focus is on creating Intelligent Agents (CrewAI, LangChain) that go beyond simple chat. I developed the Brainfeed CLI, a tool specifically designed to eliminate AI hallucinations by providing real-time web documentation and project context to LLMs. If you need an automation that actually understands your project’s architecture, I am the right person. Key Expertise: AI Agents: Designing autonomous workflows with CrewAI and LangChain. Prompt Engineering: High-performance prompting for GPT-4, Claude 3.5, and Gemini. Full-Stack AI: Integrating AI backends with modern frontends (Next.js/TypeScript). Problem Solver: Self-taught, resilient, and focused on delivering immediate ROI through automation. Let’s transform your manual processes into intelligent, automated workflows. less -
Hire andreluizf7
Profissional orientado a resultados, com forte domínio técnico em análise de dados e automação, complementado por uma escrita fluida e persuasiva. Tenho a capacidade de estruturar processos lógicos complexos e, ao mesmo tempo, redigir conteúdos que conectam ideias e facilitam o entendimento. Busco projetos que exijam...Profissional orientado a resultados, com forte domínio técnico em análise de dados e automação, complementado por uma escrita fluida e persuasiva. Tenho a capacidade de estruturar processos lógicos complexos e, ao mesmo tempo, redigir conteúdos que conectam ideias e facilitam o entendimento. Busco projetos que exijam tanto a precisão da lógica analítica quanto a clareza na construção de textos. less
