A Firmware Engineer designs and develops low-level software embedded in hardware devices, crucial for device functionality and performance. Key responsibilities include coding, debugging, and testing firmware, collaborating with hardware engineers for integration, and optimizing system performance. Required skills encompass programming languages (e.g., C/C++), embedded systems knowledge, and problem-solving. Typically working in tech or manufacturing, they collaborate closely with software engineers and product teams. Career progression can lead to senior roles, project management, or specialization in advanced technologies like IoT systems.