A system architect is a professional responsible for designing and managing complex systems within an organization. They create blueprints that outline how different components of a system interact, ensuring that all parts work together efficiently. This role often involves understanding both technical and business requirements to create solutions that meet organizational goals. System architects collaborate with various stakeholders, including software developers, project managers, and business analysts, to ensure that the system design aligns with user needs and technical capabilities. They also evaluate new technologies and methodologies to improve system performance and scalability, making them crucial in the development process.