Senior Embedded Systems Engineer - Mixed Signal Wearable Platform

Senior Embedded Systems Engineer – Mixed Signal Wearable Platform Looking for an experienced embedded engineer to help evaluate and stabilize a wearable multi-channel sensing and stimulation platform currently in advanced prototype stage. The system involves: * low-level analog acquisition * timing-sensitive control paths * battery-powered operation * wireless/cloud-connected architecture * wearable electrode interfaces * real-time embedded processing The work will involve reviewing existing hardware and firmware, identifying instability points, validating system behavior, and helping move the platform toward a more robust and scalable architecture. Areas currently under investigation include: * analog recovery and signal integrity * synchronization between acquisition and output stages * impedance measurement techniques * timing consistency under dynamic operation * mixed-signal interference and grounding behavior * power architecture and runtime optimization * fault handling and validation workflows * repeatability under real operating conditions Existing materials include: * prototype hardware * design files * firmware repositories * application software * validation data and prior revisions Strongly preferred experience: * mixed-signal embedded systems * analog front-end debugging * low-noise sensing architectures * RTOS-based firmware * PCB review and hardware bring-up * oscilloscopes and bench instrumentation * wearable or battery-powered systems * STM32, Nordic, ESP32, or ARM-based platforms * BLE / wireless embedded systems * Embedded Linux * Altium Designer * system-level debugging across hardware + firmware boundaries This will begin with a structured architecture review and technical assessment phase before moving into stabilization and continued development work. Please include: * relevant hardware/firmware background * examples of systems you have stabilized or debugged * experience with timing-sensitive embedded systems * comfort level with schematic and PCB review * availability and timezone