Troubleshoot, analyze, service and repair building HVAC systems and controls. Troubleshoot, analyze, service and repair building plumbing systems and equipment. Troubleshoot, analyze, service and repair minor building electrical equipment and systems. Assist with supervision and provide technical assistance to building personnel. Service and maintain swimming pools. City of Omaha Journeyman ACAD lincense required. 3rd Grade City of Omaha Stationary Engineers license required within 13 months of hire. Swimming pool operators license required within 7 months of hire.