Ability to interpret, comprehend, modify, and redline P&ID diagrams, control circuit ladder diagrams, control circuit relay logic schematics, single line diagrams, conduit diagrams and schedules, electrical construction drawings, and control panel shop drawings. A Controls Technician must be fully proficient in the following areas: Strong interpersonal skills and the ability to communicate professionally with Project Managers, Foremen, Superintendents, Field Controls Managers, customers, and other project personnel.