Mechanical Facilities Engineer III

OVERVIEW Merrick & Company’s High Performance Facilities (HPF) team is seeking an experienced Mechanical Facilities Engineer to support the design and delivery of HVAC and plumbing systems for a wide range of national defense projects in our San Antonio, TX office. From multi-building campuses to secure facilities across the globe, the HPF team delivers practical, high-performance solutions that meet Government requirements for resilience, readiness, and reliability. Our work directly supports the operation and efficiency of installations critical to the protection and defense of the United States. Remote employees must be based in the San Antonio area and able to meet with local clients as needed. Relocation will be supported. WHAT YOU'LL DO The Mechanical Facilities Engineer III will work under minimal supervision to design HVAC and plumbing/piping systems for a range of mission critical to mission support projects. This role requires independent execution, sound engineering judgment, and coordination with multidisciplinary teams. The Mechanical Facilities Engineer III will serve as a key member of a multidisciplinary team, contributing to the delivery of coordinated design packages including drawings, specifications, and calculations. This role may include task-level coordination with engineers and designers. Periodic travel to project sites and other Merrick offices, including international travel, may be required. Project responsibilities include: Plan, conduct, and