Deviller was appointed CEO of AIG—the Jordanian company managing the rehabilitation, expansion, and operation of Queen Alia International Airport (QAIA)—in January 2024. In April 2025, QAIA inaugurated the 4.8 MWac Shams al Mattar Lil-Taqa Solar Farm, which covers 65,000 square meters and will produce over 10.5 GWh annually, meeting nearly 25% of the airport’s energy needs and reducing around 6,000 tons of CO₂ emissions each year. In July 2025, QAIA renewed its Level 4+ Airport Carbon Accreditation, aligning its operations with global net-zero aviation targets.