Senior Firmware Engineer

• Design, develop, and optimise embedded firmware for V2G systems
• Integrate and manage peripherals essential for V2G operation, including ISO 15118/IEC 61851, SPI, I2C, RS-485, and Ethernet (IPv6 stack support)
• Develop firmware for high-volume V2G products with a focus on grid compliance, scalability, maintainability, and over-the-air upgradability
• Collaborate closely with hardware, power electronics, and compliance teams to ensure firmware is aligned with electrical safety, EMC, and grid certification requirements (e.g. G98/G99, UL)
• Conduct in-depth debugging using Wireshark, logic/protocol analysers, and power analysers in a real-world EV and grid-connected context
• Support factory test firmware and diagnostics to ensure reliable mass production of V2G-enabled hardware
• Document firmware design, architecture, communication protocols, and regulatory considerations for internal and external stakeholders

• Solid experience in firmware development for embedded systems, ideally in energy or power electronics applications
• Deep understanding of the Linux TCP/IP stack
• Proficient in embedded C/C++, with strong skills in optimising for low-latency and deterministic behaviour
• Demonstrated ability to work across cross-functional teams, especially with power engineers, test engineers, and compliance teams
• Experience developing production-ready firmware for mass-manufactured products, with attention to robustness, diagnostics, and lifecycle management
• Competent with debugging tools: oscilloscopes, logic analysers, protocol analysers (CAN, Modbus, etc.)
• Familiarity with version control (Git) and CI/CD workflows for embedded projects
• Experience with Vehicle-to-Grid communication protocols such as ISO 15118, OCPP, or IEC 61850
• Exposure to embedded Linux environments (Yocto) and integration of V2G edge devices with cloud backends
• Scripting skills in Python for test automation, validation, or production line support
• Background in energy metering (active/reactive power), grid synchronisation (PLL), and safety-critical firmware development (ASIL, SIL, etc.)

Strong understanding of MCU peripherals and protocols used in EV and smart grid integration (CAN, UART, SPI, Ethernet, RS-485)