Job Description

Nautilus Defense LLC Embedded Software Engineer Pawtucket, RI·Full time Apply for Embedded Software Engineer Nautilus is looking for an ambitious Embedded Software Engineer to support the development of our textile-integrated systems. Effective textile-integrated systems incorporate electronic devices and assemblies with small footprints and power budgets. The candidate will work closely with other Electrical and Software Engineers on our Embedded Systems team. About Nautilus Defense LLC Rhode Island based Nautilus Defense builds state-of-the-art textile-integrated systems for monitoring high-value assets and their environments. Our technologies enable the broad distribution and interconnection of electronics in textiles without detracting from their mechanical properties. We leverage these technologies to develop systems of immediate value to our customers while continuously advancing their readiness for manufacturing and use at scale. Description Nautilus Defense builds state-of-the-art textile-integrated systems for monitoring high-value assets and their environments. Our technologies enable the broad distribution and interconnection of electronics in textiles without detracting from their mechanical properties. We leverage these technologies to develop systems of immediate value to our customers while continuously advancing their readiness for manufacturing and use at scale. Nautilus is a small interdisciplinary team structured to facilitate the rapid experimental development of novel integrated systems. All Nautilus team members demonstrate high levels of technical leadership and personal autonomy. The ideal candidate for this position has experience working both independently and as a member of a fast-moving, high-performing team. Nautilus is seeking an ambitious Embedded Software Engineer who will be responsible for architecting, developing, and debugging firmware for textile-integrated embedded systems. These systems operate within stringent power, size, and performance constraints and rely heavily on efficient real-time software to enable sensor interfacing, communications, and system coordination. This role involves working closely with electrical engineers, hardware designers, and systems engineers to develop cohesive, robust solutions from prototype through deployment. This position requires US Citizenship. We are open to flexible working arrangements. Key Responsibilities: Architect, write, and debug firmware for microcontroller-based systems with a focus on ultra-low-power operation Develop and maintain embedded software for sensor interfacing, data acquisition, control, and communication protocols Work closely with electrical engineers to define software/hardware boundaries and validate hardware integration Participate in board bring-up and system integration testing, including hands-on lab work with embedded platforms Implement low-level drivers, interrupt service routines, and power management strategies Design and review embedded data structures and communication schemes for efficient operation and extensibility Write clear, maintainable documentation and contribute to software design reviews and requirements development Contribute to experimental system development and product maturation across R&D and delivery programs Preferred Qualifications: 4+ years of experience developing firmware for embedded systems in C, C++, or Rust Exceptional written and verbal communication skills Experience developing for STM32, RISC-V, or other low-power MCU platforms Familiarity with ultra-low-power design constraints and techniques (e.g., sleep modes, duty cycling, peripheral gating) Strong understanding of embedded communication protocols (I²C, SPI, UART, BLE, etc.) Experience with real-time debugging and trace tools (e.g., SWO, JTAG, logic analyzers) Background in or familiarity with electrical engineering principles and schematic interpretation Experience working on hardware/software integration in resource-constrained environments Fluency with git and modern collaborative development workflows Demonstrated ability to work independently and contribute to multidisciplinary teams in a fast-paced R&D environment #J-18808-Ljbffr Nautilus Defense

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