The four-year contract with Qatar Electricity & Water has an estimated value to Hill of approximately US$6.4m (£5m).
Qatar E&W's Lusail development will feature a 47-storey tower and one of 27 storeys, with a total built area of approximately 220,000m2. A third 7-storey structure will include retail space and parking.
"We are excited to help deliver this impressive project for Qatar E&W," said Mohammed Al Rais, regional president (Middle East) for Hill's project management group. "We look forward to this high-rise development being a hallmark of the Lusail City skyline.”