Serco Inc., Herndon, Virginia, is awarded a $70,000,000 indefinite delivery/indefinite quantity contract (N6523621D8007) with provisions for cost-plus-fixed-fee and firm-fixed-price task/delivery orders. The contract is for engineering support services and supplies for the conception, design, development and delivery of integrated systems, networks and supporting infrastructure on an emergent basis. It also includes the corresponding engineering, technical, and management support services and equipment for air traffic control, meteorology and oceanography, and aviation command, control, communications, computers, combat systems, intelligence, surveillance, and reconnaissance electronic systems. The contract includes a single five-year ordering period with an estimated value of $49,009,574 and a two-year option-ordering period, which, if exercised, would bring the estimated value of the contract to $70,000,000. Fiscal 2021 working capital (Navy) funds in the amount of $25,000 will be obligated at the time of award. Funds will not expire at the end of the current fiscal year. Work will be performed in Charleston, South Carolina (76%); and San Diego, California (24%). Work is expected to be completed by May 2028. If the option is exercised, work could continue until May 2030. The contract was competitively procured by full and open competition via the Naval Information Warfare Systems Command – Electronic Commerce Central website and the beta.sam.gov website, with three offers received. Naval Information Warfare Center Atlantic, Charleston, South Carolina, is the contracting activity.