New

Senior Modeling and Simulation Engineer

Modern Technology Solutions, Inc.
401(k)
United States, Virginia, Alexandria
5285 Shawnee Road (Show on map)
Jun 12, 2026
Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Modeling and Simulation Engineer Analyst to join our team, primarily working on-site in classified spaces within MTSI's Alexandria HQ office, and in secure government facilities within the National Capitol Region. You will help meet the requirements of our expanding customer base in the National Defense sector. This includes working directly with customers, study leads and model developers to create and execute analysis plans in various simulation environments including AFSIM, SUPPRESSOR, EADSIM and other mission and engagement level models. You will replicate systems or concepts under consideration for various operational scenarios using concepts of operation and behaviors. Additionally, you will define bounds for run matrix execution, carry out run execution, perform analysis of results, and communicate results to customers and stakeholders. Senior Engineers will be expected to lead projects, assist with personnel management, and work on developing the skills and competencies of Associate and Engineer level team members. You will have significant buy-in and influence over day-to-day operations of the team as well as team development, standards, process, and procedure. Responsibilities: Lead efforts in defining study questions to address areas of concern and translate into analysis plans. Develop models in physics simulation frameworks to represent system performance and behaviors. Develop run matrixes and lead a study team to conduct simulation runs and produce output. Post-process output data into measures of merit and effectiveness to support the analysis plan objectives. Perform verification and validation of simulation input, output and results. Lead interpretation of model results and development of presentations to deliver findings and conclusions to the customer in support of their analytical objectives. Ensure quality of modeling & simulation products including briefings for stakeholders / customers. Assign sub-tasking to study team members, monitor progress, and provide guidance and direction for performance improvements. Possibility to directly manage Associate and Engineer level employees. Required Qualifications:* 6+ years of experience with mission-level modeling and simulation and Operations Analysis principals. Bachelor's degree in engineering, mathematics, operations research, computer science or similar field. Knowledge of modeling and simulation methodologies and tools (i.e. AFSIM, Suppressor, or EADSIM). Familiarization with developing experimental designs, executing study plans, and constructing scenario elements. Experience with object-oriented programming and principles. Experience conducting data analytics using various tools. Experience with statistics and their application in Monte Carlo simulations. Experience leading study or project teams for day-to-day tasking, monitoring progress, and producing a final result. Experience in research using IC or other digital source documentation. Significant experience working with and presenting to customers, in particular with US DoD, IC, or Federal Law Enforcement. Basic knowledge of or special interest in military operations. U.S. Citizenship required. Current SSBI or T5/T5R within 6 years, final DOD Top Secret with SCI Eligibility. Some local travel required. Desired Qualifications: Master's degree in engineering, mathematics, operations research, computer science, data science, or a similar field. Significant experience with modeling and simulation methodologies and tools. Experience presenting data and results to team members and customers. Experience with data visualization or visual communications. Experience with ancillary disciplines such as radar operations, weapons systems, satellites, etc. Software development experience. Project management experience. Personnel management experience. #LI-Onsite #LI-AC1 Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry. 100% Employee Owned: We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year. Great Benefits - Most Full-Time Staff Are Eligible for: Starting PTO accrual of 20 days PTO/year + 10 holidays/year Flexible schedules 6% 401k match with immediate vesting up to $9k annually Semi-annual bonus eligibility (July and December) Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account Up to $10,000 in annual educational reimbursement Other company funded benefits, like life and disability insurance Optional zero deductible Blue Cross/Blue Shield health insurance plan Track Record of Success: We have grown every year since our founding in 1993. Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.