General Dynamics Mission Systems, Fairfax, Virginia, is awarded an $18,925,861 cost-plus-fixed-fee modification to previously awarded contract N00024-19-C-6407 for the procurement of Navy software development and system engineering services. Work will be performed in Fairfax, Virginia, and is expected to be completed by July 2027. No funding will be obligated at the time of award. The Naval Sea Systems Command, Washington, D.C., is the contracting activity.