If you want to be part of the new decade on energy revolution, at Smart Energy LAB you will have the opportunity to have a real impact by creating new products and services that will contribute to energy transition, focusing on the 3Ds (Decarbonization, Decentralization and Digitalization).Smart Energy LAB is a Collaborative Laboratory (CoLAB) held by EDP Comercial, Accenture, Instituto Superior Técnico, Faculty of Sciences of Lisbon, University of Coimbra, INESCTEC and INESC ID.Smart Energy Lab has a unique combination of science, technology and industry in the energy sector, focused on creating new products and services for the downstream of the energy value chain. "We are a green dream factory that will make tomorrow possible, improving life for everyone with new energy solutions through smart collaboration."In order to create the future, we are looking for a Firmware Engineer.As an Firmware Engineer you will perform tasks such as: Develop and optimize high-level firmware applications for compute modulesDesign application software to support complex embedded systems, leveraging Linux OS environments. Collaborate with cross-functional teams, including hardware engineers, software developers, and project managers. Develop and maintain system-level architecture documentation and software specifications. Troubleshoot and debug firmware applications to ensure seamless operation of hardware-software systems.Preferred Skills: Preferred background in Electrical Engineering, Electronics Engineering (i.e. Masters in Electrical and Computer Engineering).Experience in firmware development, particularly high-level applications for embedded systems, for IoT applications and their cloud integrations.Proficiency in working with Linux-based environments and compute modules (e.g., CM4), with languages such as Python/Shell to complement or develop firmware applications.Hands-on experience with ESP32, including firmware development using C++, Rust or similar, and also with wireless communication protocols (e.g., Wi-Fi, Bluetooth).Understanding of communication interfaces (e.g., UART, SPI, I2C, MQTT). Experience with system-level design and integration of embedded hardware and software. Knowledge of WebSockets, firmware development boostrapping from platform.ioKnowledge of Modbus, EV charging protocol (OCPP) is a plus.Debugging and troubleshooting skills in embedded systems.The opportunity is Hybrid and so candidate must reside in Lisbon. Would involve 3 days per week working in the office.3 or more years of hands-on experience in a relevant positionFluent EnglishPortuguese tax number requiredLocation: Lisbon, PortugalEmployees need to have Portuguese tax residency, and be located in Lisbon Region.Contract until June 2026, with possibility to renew to after