KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country’s most critical role – protecting our national security. KBR is seeking a Modeling & Simulation Engineer (Senior I) with AFSIM experience to join a team of quantitative analysts and modelers that conducts modeling, simulation, and analysis (MS&A) of emerging concepts for the Defense Advanced Research Projects Agency (DARPA) using advanced MS&A techniques and tools. The ideal candidate will: Be able to think creatively and offer grounded, out-of-the-box solutions when appropriate. Be comfortable working in a dynamic environment and with making or supporting decisions under uncertainty. Support M&S and software development efforts. Support the analytic team in the execution of study plans. Collaborate with military subject matter experts and DARPA program managers to characterize architectures and concepts under study in the simulation environment. Instantiate combat system, platform, and behavior models in the simulation environment. Instantiate kill chains, battle management command and control relationships, and other scenario-specific mission and operational factors in the simulation environment. Support the development and instantiation of an experiment design in the simulation environment. Be able to independently conduct assigned tasks in support of a broader analytic or modeling effort. Contribute to the creation of quality deliverables and reports and the quality control thereof.