Senior Embedded Software Engineer

Apply Description Job Summary: The Senior Embedded Software Engineer will design, develop, and support the embedded software and firmware at the heart of Qnergy's products – from bare-metal microcontroller firmware to embedded Linux systems. This is a senior hands-on individual contributor role with broad ownership across the embedded stack, working closely with electrical, mechanical, and software engineers. As the company grows, this role has a path to grow into a technical leadership position for the embedded discipline. Responsibilities:

• Design, implement, and maintain bare-metal and RTOS-based firmware (STM32 / FreeRTOS) for engine controllers, supervisory/system controllers, power electronics, and monitoring systems.
• Develop and support embedded Linux platforms, including system services, networking, and device integration.
• Own productization aspects of firmware: bootloaders, over-the-air / field firmware updates, secure boot, flash and file systems, watchdogs, and low-power operation.
• Integrate and support communication interfaces: fieldbus protocols (e.g., Modbus RTU/TCP, CAN, RS-485), remote connectivity (e.g., cellular/LTE), and cloud telemetry (e.g., MQTT, HTTP) feeding the Qnergy Dashboard.
• Debug complex cross-domain issues using lab equipment (oscilloscope, logic analyzer, debuggers) and contribute to hardware design reviews and board bring-up.
• Collaborate with electrical, mechanical, and cloud/software teams on architecture, interfaces, and design tradeoffs.
• Establish and improve engineering practices for embedded development: version control, code reviews, automated builds, CI/CD for firmware, hardware-in-the-loop testing, and effective use of modern development and AI-assisted tooling.
• Support manufacturing, field service, and customer-facing teams in diagnosing and resolving issues from returned or deployed units.
• Document designs, interfaces, and test procedures to a standard appropriate for safety and reliability-critical products.

Requirements Education & Experience:

• 7+ years of professional experience in embedded systems, firmware, or embedded software development.
• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field – or equivalent practical experience.
• Experience shipping embedded products that operate in the field (industrial, IoT, energy, automotive, aerospace, or similar).
• Experience taking products from development through certification, manufacturing, and field deployment is a strong plus.

Skills & Abilities: Must-have:

• Strong proficiency in C (and/or C++) for resource-constrained, bare-metal and RTOS environments.
• Hands-on experience with STM32 (or similar ARM Cortex-M) microcontrollers and FreeRTOS (or a comparable RTOS).
• Working experience with embedded Linux (e.g., OpenWrt, Yocto, or Buildroot-based systems), including device configuration, networking, and cross-compilation.
• Experience with bootloaders, OTA/firmware update mechanisms, secure boot, and flash/file system design.
• Proficiency with common communication buses and protocols: UART, SPI, I2C, CAN, Ethernet.
• Able to read and interpret schematics and datasheets.
• Comfortable debugging with lab equipment: oscilloscope, logic analyzer, JTAG/SWD debuggers, and multimeters.
• Solid understanding of embedded system fundamentals: interrupts, DMA, timers, ADCs, power management, and memory-constrained design.
• Disciplined engineering habits: version control (Git), code reviews, and structured testing of embedded code.

Nice-to-have:

• Ability to contribute to hardware design: schematic review, component selection, and board bring-up.
• Experience with PCB design tools (e.g., Altium, KiCad).
• Experience with industrial fieldbus protocols (Modbus RTU/TCP, CANopen) and RS-485 networks.
• Experience with cellular/LTE or other remote connectivity modules, and with IoT telemetry protocols (MQTT, HTTP/REST).
• Familiarity with firmware security practices: secure boot chains, encrypted updates, and key storage.
• Experience with CI/CD for firmware, automated testing, or hardware-in-the-loop test rigs.
• Familiarity with safety or reliability-critical development practices (e.g., functional safety standards).
• Exposure to cloud-side integration (device management, provisioning, dashboards).

Work Environment:

• This is an on-site role based at our Ogden, Utah facility, with regular access to hardware, lab equipment, and test fixtures.
• Regular use of a computer keyboard is required.
• Regularly sits for several hours per shift; occasional standing work at lab benches.
• Ability to read and interpret schematics, datasheets, and technical documents.
• Performs detailed work on multiple concurrent projects.