A Pressure Vessel Design Engineer is responsible for designing, analyzing, and ensuring the safety and compliance of pressure vessels used in industries such as oil and gas, power generation, and manufacturing. They apply engineering principles, material science, and industry codes like ASME Section VIII to develop vessels that withstand high pressures and temperatures. Their role includes calculating stresses, selecting appropriate materials, creating detailed design drawings, and collaborating with manufacturing teams to ensure proper fabrication. Additionally, they may conduct inspections, testing, and failure analysis to optimize vessel performance and safety.