Mechanical Design Engineer II (Senior)

About the Company Dynamic Systems (DSI), LLC is a leading engineering, fabrication, construction, and specialty systems provider serving high-tech manufacturing, semiconductor, mission critical, life sciences, industrial, and advanced technology clients throughout the United States. DSI delivers turnkey solutions including process piping, specialty gas systems, ultra-high-purity systems, mechanical/HVAC, process, construction, modular fabrication, utility infrastructure, and facility support services. As part of the Quanta Services family of companies, DSI combines the agility and technical expertise of a specialized engineering organization with the resources, stability, and nationwide reach of one of North America's premier infrastructure companies. DSI is currently expanding its corporate engineering capabilities and building a world-class engineering organization to support continued growth across multiple business units. This is an opportunity to join a growing team, help establish engineering standards, develop innovative technical solutions, and contribute to projects that have a direct impact on some of the world's most advanced manufacturing and technology facilities. Position Summary Leads the design and engineering of HVAC plumbing, and piping systems across new construction, design-build, and renovation projects. Acts as the senior technical resource on assigned projects, guiding design decisions from concept through construction administration, fabrication, and commissioning. Mentors less experienced engineers on the team. Key Responsibilities Develop conceptual and detailed system designs for assigned projects, from early concept through final construction documents Represent engineering at project design coordination meetings as the senior technical lead Produce advanced preliminary design layouts and redlines to support estimating and proposal efforts Perform advanced engineering calculations, including heating/cooling load analysis, equipment sizing and selection, friction loss, and hydraulic calculations Coordinate with fabrication shop (“design for fabrication”) to incorporate modular concepts into the design Conduct site visits and field inspections to verify compliance with construction documents and resolve design issues that arise during construction Provide technical oversight and mentorship to less-experienced engineers and designers on HVAC, plumbing, and piping system design and documentation Support proposal development and budgetary/technical scoping for pursuits. PI7b6553b75afd-25448-413044595c143e31-5e48-4549-b638-05792d185386