Extraordinary teams building inspiring projects: Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world''s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place. Job Summary: The Mechanical Commissioning Specialist is a discipline member of the Commissioning and Start-Up (CSU) team responsible for planning, coordinating, testing, documenting, and commissioning mechanical equipment, HVAC systems, process piping, and clean utility systems for pharmaceutical and life sciences facilities.