This is a synopsis for a Level of Effort task order for engineering and technical support services to be issued under the Seaport-NxG contract vehicle, for which offerors must be a Prime holder to be eligible. The work involves providing comprehensive engineering, programmatic, logistical, and life cycle management services in support of major test programs and industrial support. The contract type is Cost-Plus-Fixed-Fee with a period of performance consisting of one base year and four one-year option periods, requiring an estimated 61,180 direct labor hours annually. All services will be performed in Philadelphia, PA.