Johnson Controls , a global leader in thermal management, mission-critical building systems, energy efficiency, and decarbonization, helps customers use energy more productively, reduce carbon emissions, and operate with the precision and resilience required in rapidly expanding industries such as data centers, healthcare, pharmaceuticals, advanced manufacturing, and higher education. Proficiency is defined to mean: requires minimal supervision, displays quality workmanship, completes assignments in prescribed time frame, follows safety principles, properly selects and utilizes tools and materials and maintains levels of satisfactory housekeeping.