
Dennis Hall
Embedded Systems Engineer and Wearable PCB Design Expert
Habilidades

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Experiência profissional
Senior Hardware Engineer | IoT & Wearables Firm
Upwork • Freelance
Jul 2022 - Present • 3 yrs 10 mos
1. Designed wearable smartwatch PCBs using ESP32 and STM32 MCUs 2. Developed low-power BLE and WiFi hardware systems 3. Integrated sensors including ECG, PPG, accelerometer, SpO2, GPS, and temperature sensors 4. Reduced PCB size by 35% for compact wearable devices 5. Delivered production-ready Gerber and BOM files for mass manufacturing
Freelance Embedded Systems Developer
Fiverr • Freelance
Jul 2020 - Present • 5 yrs 10 mos
1. Delivered custom ESP32 and STM32 hardware solutions worldwide 2. Assisted startups in prototyping and product development 3. Specialized in wearable fitness devices and smart electronics