June 26, 2026
Senior Software Engineer, Embedded Systems
Senior • Hybrid
180,000 - 279,996 USD
Byron, CA
Elroy builds autonomous aerospace systems for real-world operations. At the heart of those systems is a hard real-time, safety-critical software stack that must operate reliably under all conditions. The embedded software team develops the code that flies the aircraft in any environment, spanning the full embedded stack from bare-metal firmware and RTOS integration to hardware bring-up and bench debugging.
The Role
As a Senior Embedded Software Engineer, you will own software running directly on safety-critical avionics hardware, including main flight computers. You will work across firmware, real-time systems, and hardware bring-up, contributing end-to-end in a highly cross-functional engineering environment.
What You'll Work On
- Embedded firmware for microcontrollers and SoCs in bare-metal and/or RTOS environments (FreeRTOS, Zephyr, or similar)
- Driver development, peripheral integration, and board bring-up for custom hardware platforms
- Real-time control loops and sensor fusion pipelines with strict timing and determinism requirements
- Hardware debugging using oscilloscopes, logic analyzers, JTAG, and schematics
- C++ and Python tooling for testing, scripting, and automation around embedded targets
- Development of models and emulators for aircraft components to represent hardware behavior in a cloud simulation framework
What We're Looking For
- 5+ years of professional embedded software development experience with production firmware shipped on real hardware
- Deep fluency in C and/or C++; Python for scripting and test tooling
- Hands-on experience with at least one RTOS and bare-metal development
- Ability to read schematics and debug hardware/software integration issues at the signal level
- Experience with communication protocols: SPI, I2C, UART, CAN, Ethernet
- Strong focus on code quality, testability, and field reliability
It’s a Bonus If You Have
- Experience in aerospace, defense, robotics, or other safety-critical domains
- Familiarity with DO-178, MISRA, or other embedded software standards
- Exposure to desktop tooling or visualization for hardware debug and test workflows
- Experience with CI/CD pipelines for embedded targets (HIL, SIL, emulation)
Our Stack
- Primary languages: C++ and Python
- RTOS: FreeRTOS and bare-metal depending on target
- Toolchains: GCC/Clang cross-compilers, CMake, custom build infrastructure
- Version control and CI: Git, GitHub, cloud-based batch simulation and test runners
- Modern AI coding tools used as productivity accelerators
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Remote
Warsaw, Poland
🏢 Summary: Long-term opportunity for a Senior Embedded Linux Developer focused on industrial automation firmware and low-level embedded systems. The role involves developing secure embedded software for ARM-based devices using Embedded Linux and Zephyr RTOS, with strong emphasis on communication protocols, hardware interaction, and system integration. 🗂️ Requirements: 5+ years of commercial embedded software development with C, Strong experience with Embedded Linux development and debugging, Practical experience with Zephyr RTOS or strong RTOS background, Experience with STM32, Nordic, or similar ARM-based microcontrollers, Strong understanding of low-level embedded development, Experience developing embedded software modules, drivers, and firmware, Hands-on experience with UART, I2C, SPI, Modbus, CAN, RS-485, or Ethernet, Experience debugging software on physical embedded devices, Understanding of embedded security concepts and secure firmware updates, Upper-Intermediate English level 📃 Skills: C, Linux, Zephyr, RTOS, STM32, Nordic, ARM, UART, I2C, SPI, Modbus, CAN, RS-485, Ethernet, MQTT, Profibus, FatFS, LittleFS, lwIP 🏢 Description: We are looking for a Senior Embedded Linux Developer with strong C programming skills and practical experience with Zephyr RTOS and low-level embedded development. You will work on a long-term industrial automation project involving Embedded Linux platforms, ARM-based microcontrollers, device communication, and security-related functionality. Customer Our Customer is one of the leading global manufacturers of industrial pumps and valve systems, delivering solutions for industrial infrastructure, water management, and process automation. The company develops advanced equipment and connected technologies used in mission-critical industrial environments worldwide, with a strong focus on reliability, operational efficiency, and secure industrial communication. Project The project focuses on the development of embedded software for industrial pump systems and connected embedded devices. The team works on firmware and low-level software components running on Embedded Linux and Zephyr-based platforms, covering device communication, hardware interaction, system integration, and security-related functionality. You will collaborate closely with PMs, QA engineers, DevOps specialists, and embedded developers to build reliable, maintainable, and secure firmware solutions for ARM-based industrial devices. Requirements 5+ years of commercial embedded software development experience using C Strong hands-on experience with Embedded Linux development and debugging Practical experience with Zephyr RTOS / ZephyrOS or strong RTOS background with readiness to work deeply with Zephyr Experience working with STM32, Nordic, or similar ARM-based microcontrollers Strong understanding of low-level embedded development concepts, including peripherals, interrupts, memory management, boot flow, and hardware interaction Experience designing and implementing embedded software modules, drivers, and firmware components Hands-on experience with embedded communication interfaces and protocols such as UART, I2C, SPI, Modbus, CAN, RS-485, or Ethernet Experience debugging and troubleshooting software on physical embedded devices Understanding of embedded security concepts, including bootloaders, secure firmware updates, firmware signing/encryption, authentication, and secure communication Upper-Intermediate or higher English level Will be a plus Experience with MQTT Experience with Profibus or other industrial communication protocols Knowledge of FatFS, LittleFS, lwIP, or similar embedded libraries/stacks Responsibilities Design, develop, debug, document, and maintain embedded software components, drivers, and device-level functionality Develop firmware solutions for industrial pump systems and embedded devices Work within Embedded Linux and Zephyr RTOS environments Implement and maintain low-level hardware interaction and communication interfaces Analyze technical approaches and provide recommendations to the Customer and project team Debug and troubleshoot software issues on real embedded hardware Participate in software and hardware integration activities Collaborate with PMs, QA engineers, DevOps specialists, and embedded developers throughout the development lifecycle Identify and escalate technical risks, blockers, and architectural concerns when necessary
