Mr. Haller has over 40 years of experience in office buildings, data centers, educational, correctional justice, healthcare, power plant, petrochemical, entertainment, retail, water treatment, pipeline, seaport, transportation, information systems, commercial, industrial, manufacturing, and residential projects. He has a strong background in all phases of construction management, combined with experience in critical path method scheduling, cost engineering, change order review, earned value management, risk assessment, and claims mitigation, negotiation, and resolution.