Hire Circuit Design Designers in Brazil

Embedded systems architect with extensive experience designing, developing, and mass-producing mission-critical electronic products for the energy, utilities, security, and oil & gas sectors. I've su... Read more

Embedded systems architect with extensive experience designing, developing, and mass-producing mission-critical electronic products for the energy, utilities, security, and oil & gas sectors. I've successfully delivered 8+ commercial hardware products currently deployed at scale across hundreds of field units. My work spans the full product lifecycle — from concept and R&D, through circuit design and PCB layout, to firmware development and mass manufacturing. Core expertise: - Microcontrollers: ESP32, STM32, ARM Cortex, Arduino - PCB Design: from schematic to production-ready Gerbers - Firmware: C/C++, FreeRTOS, OTA remote updates, MQTT, device drivers - Communication: LoRa, BLE, Wi-Fi, Cellular (2G/3G/4G), Satellite, VHF, RS485 - Sensors: Ultrasonic, seismic, acoustic, optical, temperature, pressure, current/voltage - IoT & Cloud: AWS IoT, MQTT, web dashboards - Power: Solar, ultra-low power design, battery management, energy harvesting All my firmware deliverables include a built-in OTA (Over-The-Air) update system with a web-based MQTT management interface — fully developed and field-tested across hundreds of devices. Highlights: - 3 technology patents (gas metering, ultrasonic measurement, optical coding) - Petrobras Inventor of the Year award - National Innovation Award (CNI - Brazil) - International publication (Society of Petroleum Engineers) - Postgraduate specialization in Artificial Intelligence I deliver production-ready solutions — not just prototypes.

I’m an experienced Electrical Engineer with 20 years in the field, now bringing my expertise to the freelance world. My strengths include electrical drafting, circuit design, and power distribution pl... Read more

I’m an experienced Electrical Engineer with 20 years in the field, now bringing my expertise to the freelance world. My strengths include electrical drafting, circuit design, and power distribution planning using CAD and other industry tools. I’ve led projects in residential, commercial, and industrial systems, always focused on safety, precision, and efficiency. With a solid engineering background and hands-on experience, I’m ready to deliver high-quality solutions for your electrical design needs.

Fire Alarm System Designer and Control & Automation Engineer with experience in 190+ U.S.-based fire alarm projects. I specialize in complete fire alarm system design for residential, educational, co... Read more

Fire Alarm System Designer and Control & Automation Engineer with experience in 190+ U.S.-based fire alarm projects. I specialize in complete fire alarm system design for residential, educational, commercial, industrial, military, and specialized facilities, working in accordance with NFPA 72, NFPA 101, applicable ICC codes, project specifications, and manufacturer requirements. My experience includes complete fire alarm design packages, device layouts, floor plans, riser diagrams, wiring diagrams, battery calculations, voltage drop calculations, NAC and SLC circuit design, sequences of operation, and technical design reviews. I also have experience with specialized fire alarm applications, including linear heat detection using Protectowire and SafeCable, smoke control systems, smoke compartments, AOR systems, and two-way communication systems. I have worked with fire alarm systems and equipment from multiple manufacturers, including Siemens, Notifier, Fire-Lite, Gamewell-FCI, Farenhyt, Edwards, Kidde, Mircom, Monaco, Autocall, and Potter. In addition to system design, I currently perform technical reviews of fire alarm projects, identifying design deficiencies, calculation issues, coordination problems, and potential code compliance issues before project delivery. Services I can provide: • Complete fire alarm design and shop drawings • Fire alarm device layouts and circuiting • Riser and wiring diagrams • Battery calculations • Voltage drop calculations • NAC and SLC circuit design • Sequence of operations • Drawing revisions and redlines • Technical design review • AutoCAD and FireCAD drafting I am available for individual projects, overflow design support, and ongoing collaboration with fire alarm contractors, low-voltage integrators, and engineering teams. Note: PE/NICET stamps, professional seals, and AHJ approvals are not included in my services.