A systems architect plays a critical role in software design by creating overarching structures that define software requirements, components, and interactions. They bridge the gap between business objectives and technical solutions, ensuring that the architecture aligns with organizational goals. A systems architect analyzes requirements to design scalable, efficient systems and evaluates potential technologies to ensure compatibility and integration. They guide development teams throughout the software lifecycle while identifying potential challenges and proposing best practices. In summary, the role involves high-level planning, stakeholder collaboration, and strategic decision-making to deliver effective and sustainable software solutions.