Embedded Software Engineer

• System Integration: Design and deploy comprehensive software solutions for supervisory control, OTA updates, telemetry, and manufacturing self-test protocols across solar, storage, and load subsystems. • Hardware Interfacing: Develop low-level drivers and communication stacks for power electronics using RS232/RS485, Modbus RTU, and CANbus to ensure seamless hardware-to-software connectivity. • Lead board bring-up efforts, ensuring hardware-firmware integration from power-on to full functionality. • Conduct comprehensive microcontroller and peripheral evaluations to select optimal components for system performance. • Architect and maintain robust device infrastructure, including secure bootloaders, automated firmware provisioning, and system diagnostics. • Safety-Critical Logic: Engineer high-reliability monitoring systems for arc fault detection and thermal management, implementing rapid software responses to hardware-level interrupts and fault signals. • Architecture: Take ownership of initial decisions for Linux-based gateways and communication layers from a clean slate. • Real-Time Control: Develop, enhance, and debug new and existing real-time software in embedded Linux and RTOS environments. • Validation: Drive a test-driven mentality where unit testing, software-in-the-loop (SIL), and hardware-in-the-loop (HIL) are as important as developing new firmware. • Collaboration: Work with hardware teams to co-design optimal solutions for low-latency control, signal conditioning (level shifting), and system stability in high-noise DC environments.

• Education: BS or MS in Computer Engineering, Computer Science, Electrical Engineering, or a related field. • Languages: Proficiency in modern C/C++, with a strong preference for Rust or Go in high-concurrency systems. • Experience: 5+ years of hands-on experience in embedded systems, specifically with complex, physical hardware products from prototype to production. • Embedded Fundamentals: Experience with board bring-up, bootloaders, and kernel/driver development on embedded Linux or RTOS platforms. • Power Electronics: Proven experience in the control and monitoring of power conversion systems, including inverters, converters, and battery management systems (BMS). • Power Electronics & Protocols: Proven experience in the control and monitoring of power conversion systems (inverters, BMS) and a strong grasp of system-level power architecture and communication protocols (Modbus, CANbus, SPI, I2C). • Hardware Literacy: Ability to read schematics and understand signal conditioning (e.g., interfacing +/-12V RS232 signals with 3.3V MCUs) and the use of optoisolators for noise immunity. • Domain Knowledge: Basic understanding of Utility grid electrical architectures, MPPT charging algorithms, and power electronics concepts. • Hardware/Diagnostic Skills: Advanced proficiency in using laboratory equipment (oscilloscopes, logic analyzers) for hardware debugging and system-level troubleshooting.

• Impact: Your code will directly manage renewable energy flow, helping stabilize the power grid. • Ownership: No technical debt. No "we’ve always done it this way." You set the standard. • Growth: As one of the first hires, you will play a foundational role in building the engineering culture and team. California Pay Range $120,000 — $195,000 USD