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 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 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 matheussilva114
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 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 vanessapds
I am an English–Portuguese translator, proofreader, and editor focused on clear, natural, and accurate language. I work with translation, proofreading, editing, manuscript review, and book design, helping clients improve both the quality of their text and the presentation of their material. I have a specialization...I am an English–Portuguese translator, proofreader, and editor focused on clear, natural, and accurate language. I work with translation, proofreading, editing, manuscript review, and book design, helping clients improve both the quality of their text and the presentation of their material. I have a specialization in Graphic Design, which strengthens my work with layout, visual organization, and publication-ready book and document preparation. With a background in music, technology, education, creative projects, and careful research, I bring a thoughtful, detail-oriented approach to language, tone, readability, and consistency. I am reliable, organized, and committed to delivering high-quality work on time. Available for short- and medium-length projects. less -
Hire G9FH
I create video edits for YouTube, Shorts, TikTok, and Reels in 1080p quality and above. I use Adobe Premiere Pro and After Effects|, with over 2 years of editing experience.I create video edits for YouTube, Shorts, TikTok, and Reels in 1080p quality and above. I use Adobe Premiere Pro and After Effects|, with over 2 years of editing experience. less -
Hire Valdineilebkuche
Eficiente, inteligente, ágil, resiliente, persistente, disciplinado, paciente, focado, comprometido.Eficiente, inteligente, ágil, resiliente, persistente, disciplinado, paciente, focado, comprometido. less -
Hire brunosou
Bruno Ferreira is a Brazilian communication and web development professional. Since 2008, he has worked in the web development field, focusing on digital solutions. In 2012, he founded his own brand and company, Emancipa Comunicação, offering hosting and development services to various brands. Currently, he works as a...Bruno Ferreira is a Brazilian communication and web development professional. Since 2008, he has worked in the web development field, focusing on digital solutions. In 2012, he founded his own brand and company, Emancipa Comunicação, offering hosting and development services to various brands. Currently, he works as a full-stack developer on Cloud and E-commerce projects. Notably, he participated in the development of the first live-streaming e-commerce platform in Brazil during the early stages of the COVID-19 pandemic. Bruno Ferreira also played an active role in the development of the first cloud service marketplace in Brazil, highlighting his experience in innovative and large-scale projects within the national technology landscape. With a strategic business vision, Bruno Ferreira applies his deep knowledge of data analysis with Artificial Intelligence to drive growth and innovation. His expertise ranges from identifying complex trends and patterns to formulating actionable insights for executive decision-making. He works as a consultant, assisting companies in optimizing their processes and identifying new market opportunities through intelligent data analysis. In the area of strategic planning, he utilizes AI tools to perform predictive and prospective analyses, enabling the development of robust action plans adaptable to market dynamics. His expertise extends to integration with various AI tools, including Perplexity, DeepSeek, Bedrock, and OpenAI, utilizing the latest technologies to optimize solutions. Furthermore, he has experience in agile development, using modern frameworks such as Astro for building fast and optimized interfaces, and Laravel for robust back-end development. Bruno Ferreira possesses extensive knowledge of AWS, Azure, and Google Cloud services, demonstrating proficiency in the architecture, implementation, and management of scalable and secure solutions. His experience also includes the use of Docker and Kubernetes for application containerization and orchestration, optimizing the deployment and lifecycle of software in cloud environments. Throughout his professional career, he worked for many years in the iGaming market, where he developed and implemented innovative solutions for player retention and acquisition. His expertise included the automation of processes within the strategy team and the gamification of landing pages, creating interactive and engaging experiences that optimized user conversion and loyalty rates. He actively contributed to the creation of the Guia Empreendedor (Entrepreneur's Guide), demonstrating his commitment to fostering entrepreneurship. His work extends to serving large companies both in Brazil and the United States, solidifying his experience in a global context and proving his ability to handle complex challenges in different markets. less -
Hire brunos202
🥇8+ years of experience in Embedded Systems, Electronics, ESP32, STM32, PCB Design, Healthcare devices, Drones and Sensor Integration with deep expertise in ESP32, STM32, ROS2, Gazebo, Arduino, Raspberry Pi, Edge AI, Computer Vision, and Deep Learning ✅ Brothers team: Firmware & AI Engineer + Mobile App Developer ✅...🥇8+ years of experience in Embedded Systems, Electronics, ESP32, STM32, PCB Design, Healthcare devices, Drones and Sensor Integration with deep expertise in ESP32, STM32, ROS2, Gazebo, Arduino, Raspberry Pi, Edge AI, Computer Vision, and Deep Learning ✅ Brothers team: Firmware & AI Engineer + Mobile App Developer ✅ 100% Success Score ✅ 100% client satisfaction 💎 Worked with global clients on real-world embedded solutions 💎 Expertise in ESP32, STM32, Raspberry Pi, Edge AI, and sensor-based systemsAI Embedded System Engineer ESP32, STM32, Raspberry Pi,AI, Computer Vision, YOLO, PCB Design, OpenCV, TensorFlow,IoT, MQTT, HTTP, CoAP, AWS IoT Core, TinyML, Edge AI, AI Automation, AI Services, Smart Devices, Object Detection, Face Recognition, Gesture Recognition, Arduino, Embedded Systems, Firmware, Multilayer PCB,ThingsBoard, Node-RED, Home Assistant, Smart Home, Industrial IoT, Sensors, Actuators, Motor Control, Low I am a professional Embedded Systems, IoT, and AI/ML Developer with hands-on experience in designing, programming, testing, and deploying microcontroller-based and smart AI systems. I specialize in creating intelligent, reliable, and high-performance solutions using industry-leading platforms such as: ✅ ESP32 / ESP8266 (WiFi, BLE, FreeRTOS, ESP-IDF, PlatformIO) ✅ Arduino (AVR, SAMD, ARM, STM32) ✅ Raspberry Pi / Linux SBCs (Python, automation, camera systems, AI/ML applications) ✅ Microcontrollers: STM32, PIC, Atmel, ARM Cortex-M series ✅ Wireless Technologies: WiFi, BLE, LoRa, GSM, Zigbee ✅ IoT Platforms: MQTT, Firebase, Blynk, ThingsBoard, AWS IoT, Azure IoT ✅ Machine Learning & AI: Edge AI, TensorFlow Lite, TinyML, AI-driven sensor analytics Sensors, actuators, industrial protocols, and communication interfaces PCB design, schematic development, hardware prototyping, and testing I help clients build efficient, intelligent, low-power, production-ready embedded systems from concept to fully working prototype. My work includes firmware development, AI/ML integration, hardware-software integration, IoT cloud connectivity, and mobile app development for IoT dashboards and device control. 🔧 What I Can Do for You ✓ Custom firmware development for ESP32, Arduino, Raspberry Pi, STM32 ✓ Mobile app integration (Android/iOS) for IoT products ✓ Edge AI and Machine Learning for sensors and automation ✓ Python automation, Raspberry Pi projects, and AI/ML applications ✓ PCB design, schematic creation, board layout, and prototyping ✓ Debugging, optimization, and device performance improvements ✓ Industrial automation, smart devices, and AI-enabled systems If you're building a smart device, IoT product, AI-enabled system, automation solution, sensor network, or any embedded electronics project, I can help you bring your idea to life with expert-level development and reliable results. 📩 Ready to start building your next AI-powered embedded or IoT solution? Let’s talk! less
