**Description** ARA is seeking a Staff Modeling and Simulation Engineer with a background in unmanned underwater vehicle (UUV) physics to support US Navy UUV Modeling, simulation, and testing efforts. Seeking an individual with a deep understanding of unmanned underwater vehicle systems (Remotely operated and autonomous vehicles). As a Staff Modeling and Simulation Engineer, you will conduct modeling and simulation activities that include analysis, simulation development, verification or validation. **Required Experience and Expertise include** : + A bachelor's degree in engineering, physics, or related field and 2-4 years' experience in unmanned underwater vehicle physics. + U.S. Citizenship and the ability to obtain a DoD Secret security clearance. + Previous experience in physics-based engineering modeling and simulation. + Experience implementing (3 rd party) UUV physics modeling and simulations based on theory and physical data. + Experience developing and implementing real time high-fidelity physics models for UUVs. + Experience verifying and validating UUV physics modeling and simulations based on physical test data. + Experience modeling underwater environments and factors that impact UUV operation (and simulation). + Experience preparing research reports, technical proposals, formal presentations, and reading/interpretating data. + Proficiency with MS Office Suite and programming language such as Python, C++, Fortran, etc. + Demonstrated ability to work independently or in a diverse team setting. **Preferred Experience:** + Working with U.S. Navy UUVs or similar. + Working with the Naval Autonomy Test System (NATS), NATS Integrated Management System (NIMS), and/or Virtual Maritime Autonomy Test Environment (VMATE). + Developing and/or using Tactical Awareness Kit (TAK) applications. + Developing and conducting testing for digital twin environments. + Surveying underwater environments and finding/collecting available data for testing. + Active DoD Secret security clearance. This job is onsite and can be based out of Panama City, Florida or San Antonio, TX. **About ARA:** ARA is an employee-owned international research and engineering company recognized for providing technically superior solutions to complex and challenging problems in the physical sciences. The company, founded in Albuquerque, NM, in 1979, currently employs over 1,500 professionals and continues to grow. ARA offices throughout the United States and Canada provide expertise across a broad range of engineering and science technologies. Our Better Fuels Group develops and deploys innovative fuels technologies, converting waste products to renewable fuels, and creating high value products for a sustainable future. ARA employs traditional refinery equipment and novel water-based technologies to make fuels and chemicals, including sustainable jet fuel that meets petroleum specifications without blending and diesel fuel that is virtually indistinguishable from petroleum. At ARA, employees are our greatest assets. We realize that employee ownership spawns greater creativity and initiative along with higher performance and customer satisfaction levels. ARA gives employees the tools, training, and opportunities to take more active roles as owners. The culture is challenging; innovation and experimentation are the norm. Employees are eligible for contributions which not only add to the company’s success, but also their own through the Employee Stock Ownership Plan (ESOP). The motto, “Engineering and Science for Fun and Profit” sums up the ARA experience. Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. 41 CFR 60-1.35(c)