Freelancers for hire in Brazil
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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 afonsoklein
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,...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. less -
Hire 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! less -
Hire melopgabriel
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, 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 less -
Hire 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! less -
Hire matheussilva114
As a Senior full stack software dev, Data Scientist and AI/ML Engineer, I specialize in developing, and deploying Software Products with good machine learning solutions. I operate as a deeply full stack engineer across the entire technology spectrum building and integrating web platforms, game engines, blockchain...As a Senior full stack software dev, Data Scientist and AI/ML Engineer, I specialize in developing, and deploying Software Products with good machine learning solutions. I operate as a deeply full stack engineer across the entire technology spectrum building and integrating web platforms, game engines, blockchain systems, and generative AI solutions, from core infrastructure and backend logic to user experiences and intelligent automation. less -
Hire vanessapds
I work with writing, editing, translation, and publishing — but what I really focus on is clarity. Many people have strong ideas but struggle to express them clearly, especially between English and Portuguese. I help bring structure, clarity, and natural expression to what you want to say — through writing, editing,...I work with writing, editing, translation, and publishing — but what I really focus on is clarity. Many people have strong ideas but struggle to express them clearly, especially between English and Portuguese. I help bring structure, clarity, and natural expression to what you want to say — through writing, editing, translation, and also through the organization and layout of your content, so the message flows and makes sense as a whole. My work is not just about correcting text — it’s about making sure your message is understood the way you intend. less -
Hire euivanfilipe
Portuguese (Brazil) Translator, Portuguese Translator, Translation, Administrative Support, Audio ServicesI am a Portuguese-Brazil translator, content locator, and administrative assistant with over 10 years of experience in Excel, organizing tasks, managing deadlines, and providing team support. I have skills in recording and locating audio and spreadsheets, communication, task management, customer service, and using...I am a Portuguese-Brazil translator, content locator, and administrative assistant with over 10 years of experience in Excel, organizing tasks, managing deadlines, and providing team support. I have skills in recording and locating audio and spreadsheets, communication, task management, customer service, and using digital tools. I work to ensure that internal processes flow efficiently and quickly. less -
Hire DanielCode00
I’m a Full-Stack AI Developer with 7+ years of experience delivering innovative AI-driven solutions, automation workflows, and scalable web applications. I’ve led cross-functional teams to build products that are efficient, reliable, and growth-ready, ensuring top-quality results every time. 💼 Key Strengths ✅...I’m a Full-Stack AI Developer with 7+ years of experience delivering innovative AI-driven solutions, automation workflows, and scalable web applications. I’ve led cross-functional teams to build products that are efficient, reliable, and growth-ready, ensuring top-quality results every time. 💼 Key Strengths ✅ Full-Stack Development & Team Leadership: Leading backend & frontend teams to design, develop, and deploy robust, scalable products. Ensuring seamless integration, optimal performance, and maintainable architecture. 🤖 AI & Machine Learning Expertise: Building AI models: predictive algorithms, neural networks, NLP solutions, RAG-based chatbots. Skilled in TensorFlow, PyTorch, HuggingFace, OpenAI API, LangChain. ⚙️ Backend Development: Expert in Python (Django, Flask, FastAPI) and JetEngine, Node,js, Redis (Express, TypeScript). Designing secure, scalable APIs and high-performance backend systems. ☁️ Cloud Computing & Scalability: Deploying on AWS (EC2, Lambda, DynamoDB, S3, CloudFormation). Building cloud-native, cost-efficient, and highly available architectures. 🎨 Frontend & Cross-Platform: Development Skilled in React,js, Next,js, Vue,js, Tailwind CSS, Material UI,WordPress, WooCommerce, and Flutter for building responsive, high-performance web and mobile applications. Converting designs (Figma) into responsive, user-friendly interfaces. 🔌 API Integration & Automation: Integrating APIs like Twilio, Airtable, Notion, Slack, Microsoft Graph API, Google Workspace API. Designing automation workflows using n8n, Make,com, Clay,com, Zapier. 🌍 Industries I’ve Worked With Legal Tech: AI automation for legal processes, intelligent document processing, case workflow optimization. E-Commerce & Retail: AI-powered product recommendations, inventory automation, personalized customer experiences. Finance & Fintech: Automated data pipelines, secure API integrations, predictive analytics. SaaS & Startups: Scalable full-stack platforms, AI-enabled customer support, workflow automation. Marketing & CRM Automation: Campaign automation, AI chatbots, lead qualification systems. Healthcare & MedTech: HIPAA-compliant AI solutions, patient data automation, appointment scheduling systems, medical data analytics. 🤝 My Approach I believe in clear communication, agile collaboration, and results-focused development. My process includes: Detailed planning & transparent updates. Writing clean, scalable, and well-documented code. Continuous improvement through testing and feedback. 🚀 Let’s create something amazing together. If you’re looking for a scalable AI solution, a smart automation system, or a full-stack web app that actually delivers results, I’d love to help. 💬 Drop me a message and let’s talk about how we can bring your idea to life. less -
Hire joseteixeira06
Thank you for visiting my profile. I am a highly organized and committed developer focused on delivering high-quality solutions. I work with strong attention to detail, clear communication, and full dedication to client success. I have solid experience transforming ideas into complete, functional, and optimized...Thank you for visiting my profile. I am a highly organized and committed developer focused on delivering high-quality solutions. I work with strong attention to detail, clear communication, and full dedication to client success. I have solid experience transforming ideas into complete, functional, and optimized products. I specialize in both frontend and backend development, as well as modern AI-driven solutions. I can take your project from the initial concept all the way to a fully deployed and scalable product. My core expertise includes: - HTML5, CSS3, and JavaScript (ES6+) - Python development with Django and FastAPI - Mobile App Development with Apache Cordova - AI/ML development using PyTorch - AI agents and workflow automation (LangChain, LangGraph) - Automation tools such as n8n and Zapier - Plugin integration: camera, GPS, storage, push notifications - Responsive layouts and intuitive UI/UX design - Firebase (Realtime Database / Firestore / Authentication) - Integration with APIs and external systems - Performance optimization and code enhancement - Bug fixing, testing, and ongoing maintenance I am passionate about building efficient, scalable, and intelligent systems that deliver real value. If you choose to work with me, you can expect full commitment, transparent communication, and a final result that meets—and exceeds—your expectations. less
