The company will help the Air Force redesign responses to threats response under the Massive Ordnance Penetrator program.
Work under the firm-fixed-price contract will occur in St. Louis and the Pentagon expects work to finish on March 30, 2014.
Eglin Air Force Base in Florida is the contracting activity.
The Chicago-based aerospace and defense contractor recently won an estimated $11.4 billion Air Force contract to provide 84 F-15 jets and associated accessories for a foreign military sale.
Saudi Arabia will purchase the jets as part of a larger $30 billion military hardware deal.