Jahan has been a long-term senior executive and advisor. He has been managing principal of CA Advisors. He was also director of strategy and analytics at PricewaterhouseCoopers and director of airline, aerospace, and operations research at Applied Decision Analysis, Inc. Before his consulting career, he worked at American Airlines and United Airlines. and co-founded California Airlines and was its CEO. He has served on the faculty of the School of Business and Management at Notre Dame de Namur University, and on the faculty of the Department of Aviation at San Jose State University.
Jahan holds a masters in management science and engineering from Stanford University, as well as a masters in industrial and systems engineering from the University of Southern California, and bachelor degrees in civil engineering and electrical engineering from the University of Illinois.