The Design Manager leads the design function for DSI's Off-Site Manufacturing division, taking mechanical (HVAC and plumbing) scope for mission-critical and data-center projects from concept through modularization, detailed design, shop fabrication packages, and field installation drawings. The role owns design quality, schedule, and constructability for prefabricated modules, skids, racks, and multi-trade assemblies, and is the primary design interface between customers, engineers of record, DSI project teams, and the fabrication shop.