Software Developer

Modern Technology Solutions, Inc.
paid time off, 401(k)
United States, Virginia, Dahlgren
Sep 02, 2026
MTSI is seeking several experienced Software Developers to support the U.S. Navy's Threat Engineering Programwith advanced modeling, simulation, and analysis efforts for multi-domain sensors and weapon systems. Positions play a critical role in the development of Acquisition Threat Engineering Products (ATEP) and RedShip product line.Position requires ability to work inC++, Advanced Framework for Simulation, Integration, and Modeling (AFSIM), as well as Next Generation Threat System (NGTS) simulation environments used to evaluate enemy combatant ships, weapons, and sensor performance to support Navy mission objectives. As part of a multidisciplinary engineering team, the developers will contribute to the design, implementation, integration, and sustainment of complex software architectures that enable nextgeneration test capabilities across the fleet. Key Responsibilities Design, develop, and optimize C++, NGTS, or AFSIM modeling and simulation software for multidomain, high-threat combat environments. Implement objectoriented architectures that accurately representsurface ships, missiles, and sensor system behavior. Collaborate closely with project managers, system engineers, and technical leads to define technical roadmaps, development milestones, and longterm product strategies. Participate actively in Agile development workflows, including sprint planning, peer reviews, and iterative release cycles. Apply DevSecOps principles to ensure secure, maintainable, and scalable development and deployment practices. Develop, update, and maintain comprehensive technical documentation, including system specifications, design artifacts, test plans, and user manuals. Support verification and validation activities to ensure model accuracy and performance fidelity. Integrate simulation components into larger systemofsystems environments and perform troubleshooting and performance tuning as needed. Required Qualifications US Citizenship and a secret level clearance is required. Bachelor's degree in aerospace engineering, Computer Science, Computer Engineering, or a closely related technical field. 5+ years of experience developing multi-domain DoD modeling and simulation software. Demonstrated experience developing, testing, or maintaining highfidelity models. Strong proficiency in object-oriented principles. Advanced handson experience building, debugging, and testing C++ applications in a highperformance environment. Willingness to collaborate with project managers and technical leads to build roadmaps for product development. Desire and ability to function in an Agile team environment. Knowledge of DevSecOps methodologies and secure software development best practices. Ability to develop and maintain detailed product documentation. Desired Qualifications Prior experience developing platform, weapon or combat system models, including kinetic and nonkinetic engagements. Familiarity with weapon systems, radars, or navy combat systems. Intermediate proficiency with Python and MATLAB for data analysis, prototyping, or model validation. Master's degree in a technical field (e.g., Computer Science, Electrical Engineering, Aerospace Engineering). The pay range for this position is $100,000 year to $130,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI offers a full range of medical benefits, 401k, ESOP, paid time off, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-JJ1 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.