A civil engineer is a professional who plans, designs, constructs, and maintains infrastructure projects and systems. This includes roads, bridges, buildings, airports, water supply systems, sewage treatment plants, and other public works. They apply principles of engineering, mathematics, and physics to ensure structures are safe, efficient, sustainable, and compliant with regulations. Civil engineers work closely with architects, surveyors, contractors, and government agencies, managing projects from conception to completion while considering factors such as cost, environmental impact, and durability. Key skills include structural analysis, project management, CAD software proficiency, problem-solving, and effective communication.