About the Role
This is a senior embedded firmware role on the core hardware team of an early-stage wearable AI startup, where you'll architect and ship the firmware powering a next-generation biometric wearable device. You'll work hands-on from prototype through mass production, playing a foundational role in defining how the platform is built and how it performs in the real world. The work sits at the intersection of low-power embedded design, sensor integration, and production engineering — shipping a category-defining consumer product that matters to users.
What You'll Do
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Architect and develop embedded firmware for battery-powered wearable devices.
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Own core systems for low-power wireless connectivity, sensor processing, and real-time data pipelines.
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Design and optimize Bluetooth Low Energy (BLE) connectivity for ultra-low-power operation.
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Build robust power management systems to maximize battery life.
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Develop multi-core embedded data pipelines for real-time sensor acquisition and processing.
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Integrate biometric and environmental sensors via SPI, I2C, UART, GPIO, DMA, and interrupts.
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Optimize firmware performance, memory usage, latency, and reliability.
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Lead board bring-up, debugging, validation, and manufacturing support.
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Collaborate with hardware, algorithms, product, and industrial design teams across the full product lifecycle.
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Establish firmware best practices, testing, and CI workflows for the team.
What We're Looking For
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6+ years of embedded firmware engineering experience, with a track record of shipping battery-powered wearable or consumer electronics devices to production.
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Deep expertise in Bluetooth Low Energy (BLE) systems and low-power embedded architectures.
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Strong proficiency in Embedded C/C++ and RTOS-based systems (e.g., FreeRTOS, Zephyr).
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Hands-on experience with ARM Cortex-M microcontrollers and modern debugging tools.
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Experience with multi-core embedded data pipelines and always-on power optimization.
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Sensor integration experience using SPI, I2C, UART, GPIO, DMA, and interrupt-driven designs.
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Familiarity with secure bootloaders, OTA firmware updates, wireless certification, and production firmware.
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Background in sensor fusion, signal processing, or biometric sensing is a strong plus.
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Experience with platforms such as Nordic, Qualcomm, Ambiq, or STMicroelectronics is a plus.
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Comfortable working in person with a small, fast-moving engineering team.
Location
This role is on-site in New York, NY. Visa sponsorship is not available.
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