Freelancers for hire in Brazil
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I’m a Senior Software Engineer with 7+ years of experience building scalable, high-performance applications across web and mobile platforms. I specialize in JavaScript/TypeScript, React, React Native, Node.js, Laravel, Django, and cloud services (AWS, GCP, Azure). ✅ What I Do Best: - Full-stack development (frontend...I’m a Senior Software Engineer with 7+ years of experience building scalable, high-performance applications across web and mobile platforms. I specialize in JavaScript/TypeScript, React, React Native, Node.js, Laravel, Django, and cloud services (AWS, GCP, Azure). ✅ What I Do Best: - Full-stack development (frontend + backend + database + APIs) - Mobile app development (iOS & Android, React Native / Flutter / Swift / Android Studio) - Scalable backend systems (Node.js, Laravel, Django, Express.js, Next.js) - RESTful & GraphQL API design and integration - Database architecture (MySQL, PostgreSQL, MongoDB) - Cloud deployment & DevOps (AWS, Docker, CI/CD pipelines) - Payment gateway integrations (PayPal, Stripe, Payoneer, crypto) - Third-party API integrations (Firebase, Twilio, Google APIs, etc.) I’ve successfully delivered dozens of projects, from SaaS platforms to fintech solutions, e-commerce systems, and custom business apps. Let’s bring your project idea to life with robust and scalable solutions. less
Hire shanec35
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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 itazedo
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⭐AI⭐Automation⭐Python⭐Scraping⭐WordPress⭐Mobile⭐Zapier⭐N8N⭐MERN I am a software engineer specializing in AI, automation, and full-stack development, with over 7 years of experience delivering production-grade systems. My focus is on building scalable, reliable solutions where intelligent automation is tightly...⭐AI⭐Automation⭐Python⭐Scraping⭐WordPress⭐Mobile⭐Zapier⭐N8N⭐MERN I am a software engineer specializing in AI, automation, and full-stack development, with over 7 years of experience delivering production-grade systems. My focus is on building scalable, reliable solutions where intelligent automation is tightly integrated with robust application architecture. I design and implement end-to-end systems that combine event-driven backends, clean APIs, and maintainable frontends—ensuring performance, observability, and long-term sustainability in real-world environments. Core Expertise - AI-powered automation and intelligent workflows - Event-driven architectures & orchestration - Backend systems, APIs, and services - Frontend application development - Full-stack system integration - Data processing and automation pipelines - Fault tolerance, retries, and structured error handling - Monitoring, analytics, and technical documentation Professional Highlights - Delivered full-stack applications with deeply integrated automation - Designed scalable APIs supporting real-time and asynchronous workflows - Integrated AI into operational, internal, and customer-facing systems - Built maintainable, production-ready architectures with clear handoff - Emphasized reliability, observability, and clean system design I deliver engineering solutions where automation, intelligence, and application logic operate together seamlessly—designed for scale, clarity, and long-term reliability. less
Hire mauriciom46
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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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I’m an AI and blockchain specialist with 8 years of experience developing innovative solutions in Web3, DeFi, smart contracts, and AI-driven applications. I have good experience in JS/TS base UI Frameworks like React and Vue as well as NodeJS, Application development. I have been involved in a bunch of web &...I’m an AI and blockchain specialist with 8 years of experience developing innovative solutions in Web3, DeFi, smart contracts, and AI-driven applications. I have good experience in JS/TS base UI Frameworks like React and Vue as well as NodeJS, Application development. I have been involved in a bunch of web & blockchain projects and developed several SaaS Products and deployed to AWS, Heroku and Digital Ocean successfully. My expertise includes: Blockchain: Smart contract development (Solidity, Rust), DeFi protocols, NFT marketplaces AI & ML: Predictive analytics, NLP, deep learning models Tech Stack: Python, TensorFlow, Solidity, Ethereum, Solana, Hyperledger My strengths as a developer include: - Worked on front-end modules React, React-Native, Vue, Angular, Javascript, Typescript and Next.js with the latest technologies and experience - Hands-on experience in micro-service architecture (Node.Js, GraphQL, Laravel, Django, .NET, Python). - Built many kinds of web3 projects like DeFi, NFT, DAO using Solidity and Rust. - A deep understanding of microservice architecture, which has allowed me to design scalable and efficient systems. - Expertise in cloud platforms, including AWS, GCP, and Azure, for deploying and managing cloud-based applications. - Strong familiarity with containerization and orchestration tools like Docker and Kubernetes. - A commitment to best practices, clean code, and efficient testing to ensure the reliability and maintainability of my solutions. I’ve worked with startups and enterprises to build cutting-edge AI and blockchain solutions that drive efficiency and innovation. Let’s collaborate to turn your vision into reality! less
Hire Nilosiqueiratj
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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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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. less
Hire AnjosGustavo
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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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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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❤Hello Everyone❤ I am an accomplished Full Stack Engineer with over nine years of hands-on experience building scalable web applications. My expertise seamlessly bridges modern front-end frameworks and robust back-end systems, utilizing Python as your primary server-side language. A key differentiator is my...❤Hello Everyone❤ I am an accomplished Full Stack Engineer with over nine years of hands-on experience building scalable web applications. My expertise seamlessly bridges modern front-end frameworks and robust back-end systems, utilizing Python as your primary server-side language. A key differentiator is my specialized skill in integrating AI and machine learning models into production-ready software, creating intelligent features. I am proficient in the entire development lifecycle, from designing responsive user interfaces to managing cloud infrastructure and databases. My passion lies at the intersection of practical engineering and innovative AI, crafting solutions that are both technically sound and strategically impactful. less
Hire marcioazambujo
