{"schemaVersion":"jobsearcher.job.v1","id":"2dd44c9e1e834df3057c82e2","url":"https://jobsearcher.com/jobs/2dd44c9e1e834df3057c82e2","canonicalUrl":"https://jobsearcher.com/jobs/2dd44c9e1e834df3057c82e2","title":"Senior Software Developer","description":"MTSI is seeking an experienced Software Developer to support the U.S. Navy’s Advanced Threat Engineering Program (ATEP) with advanced modeling, simulation, and analysis efforts for multi-domain sensors and weapon systems. This position plays a critical role in the development of high‑fidelity, C++‑based simulation environments used to evaluate aircraft, missile, and sensor performance in support of Navy mission objectives.\n\nAs part of a multidisciplinary engineering team, the developer will contribute to the design, implementation, integration, and sustainment of complex software architectures that enable next‑generation test capabilities across the fleet.\n\nKey Responsibilities\nDesign, develop, and optimize C++ modeling and simulation software for multi‑domain, high-threat combat environments.\nImplement object‑oriented architectures that accurately represent aircraft, missile, and sensor system behavior.\nCollaborate closely with project managers, system engineers, and technical leads to define technical roadmaps, development milestones, and long‑term product strategies.\nParticipate actively in Agile development workflows, including sprint planning, peer reviews, and iterative release cycles.\nApply DevSecOps principles to ensure secure, maintainable, and scalable development and deployment practices.\nDevelop, update, and maintain comprehensive technical documentation, including system specifications, design artifacts, test plans, and user manuals.\nSupport verification and validation activities to ensure model accuracy and performance fidelity.\nIntegrate simulation components into larger system‑of‑systems environments and perform troubleshooting and performance tuning as needed.\n\nRequired Qualifications:\nActive Secret clearance required at the time of hire.\nU.S. Citizenship required.\nBachelor’s degree in computer science, Computer Engineering, or a closely related technical field.\n7+ years of experience developing multi-domain DoD modeling and simulation software.\nDemonstrated experience developing high‑fidelity models for aircraft, missile, and sensor systems.\nStrong proficiency in object-oriented principles.\nAdvanced hands‑on experience building, debugging, and testing C++ applications in a high‑performance environment.\nWillingness to collaborate with project managers and technical leads to build roadmaps for product development.\nDesire and ability to function in an Agile team environment.\nKnowledge of DevSecOps methodologies and secure software development best practices.\nAbility to develop and maintain detailed product documentation.\n\nDesired Qualifications:\nTop Secret clearance preferred\nPrior experience developing weapon system models, including kinetic and non‑kinetic engagements.\nFamiliarity with sensor technologies such as EO/IR imaging systems and radar.\nIntermediate proficiency with Python and MATLAB for data analysis, prototyping, or model validation.\nMaster’s degree in a technical field (e.g., Computer Science, Electrical Engineering, Aerospace Engineering).\n\nThe pay range for this position is $120,000 year to $150,000/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.\n\n#LI-JJ1\n\nSecret\n\nPerks and Benefits\nVacation:\nNew Hires Accrue 20 days of PTO and 10 Holidays per Year\nHealth Insurance:\nZero Deductible Health Plans\nFlexible Schedules:\nFlex Schedules\nProfessional Development:\nUp to $10,000 Annual Education/Training Reimbursement\nESOP:\nFunded Stock Ownership Plan\n401k Match+:\n6% 401k Match + Immediate Vesting\nBonus Program:\nSemi-Annual Bonus Opportunity\nMentorship:\nCareer Mentorship Programs\nWhy is MTSI a great place to work\nInteresting Work:\nOur co-workers support some of the most important and critical programs to our national defense and security.\nValues:\nOur 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.\n100% Employee Owned:\nWe 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.\nGreat Benefits - Most Full-Time Staff Are Eligible for:\nStarting PTO accrual of 20 days PTO/year + 10 holidays/year\nFlexible schedules\n6% 401k match with immediate vesting up to $9k annually\nSemi-annual bonus eligibility (July and Decemeber)\nCompany funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account\nUp to $10,000 in annual educational reimbursement\nOther company funded benefits, like life and disability insurance\nOptional zero deductible Blue Cross/Blue Shield health insurance plan\nTrack Record of Success:\nWe have grown every year since our founding in 1993.\nModern 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\nMTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.\nFor more information about MTSI, please visitwww.mtsi-va.com\nEEO Statement\nMTSI 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.\n\nWhy is MTSI a great place to work\nInteresting Work: Our co-workers support some of the most important and critical programs to our national defense and security.\nValues: 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.\n100% 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.\nGreat Benefits - Most Full-Time Staff Are Eligible for:\nStarting PTO accrual of 20 days PTO/year + 10 holidays/year\nFlexible schedules\n6% 401k match with immediate vesting up to $9k annually\nSemi-annual bonus eligibility (July and Decemeber)\nCompany funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account\nUp to $10,000 in annual educational reimbursement\nOther company funded benefits, like life and disability insurance\nOptional zero deductible Blue Cross/Blue Shield health insurance plan\nTrack Record of Success: We have grown every year since our founding in 1993.\nModern 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\nMTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.\nFor more information about MTSI, please visit www.mtsi-va.com","company":"Modern Technology Solutions","rawCompany":"modern technology solutions","city":"Dahlgren","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-08-05T13:58:52.161Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"928110","title":"National Security","slug":"national-security"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Software Developer","description":"MTSI is seeking an experienced Software Developer to support the U.S. Navy’s Advanced Threat Engineering Program (ATEP) with advanced modeling, simulation, and analysis efforts for multi-domain sensors and weapon systems. This position plays a critical role in the development of high‑fidelity, C++‑based simulation environments used to evaluate aircraft, missile, and sensor performance in support of Navy mission objectives.\n\nAs part of a multidisciplinary engineering team, the developer will contribute to the design, implementation, integration, and sustainment of complex software architectures that enable next‑generation test capabilities across the fleet.\n\nKey Responsibilities\nDesign, develop, and optimize C++ modeling and simulation software for multi‑domain, high-threat combat environments.\nImplement object‑oriented architectures that accurately represent aircraft, missile, and sensor system behavior.\nCollaborate closely with project managers, system engineers, and technical leads to define technical roadmaps, development milestones, and long‑term product strategies.\nParticipate actively in Agile development workflows, including sprint planning, peer reviews, and iterative release cycles.\nApply DevSecOps principles to ensure secure, maintainable, and scalable development and deployment practices.\nDevelop, update, and maintain comprehensive technical documentation, including system specifications, design artifacts, test plans, and user manuals.\nSupport verification and validation activities to ensure model accuracy and performance fidelity.\nIntegrate simulation components into larger system‑of‑systems environments and perform troubleshooting and performance tuning as needed.\n\nRequired Qualifications:\nActive Secret clearance required at the time of hire.\nU.S. Citizenship required.\nBachelor’s degree in computer science, Computer Engineering, or a closely related technical field.\n7+ years of experience developing multi-domain DoD modeling and simulation software.\nDemonstrated experience developing high‑fidelity models for aircraft, missile, and sensor systems.\nStrong proficiency in object-oriented principles.\nAdvanced hands‑on experience building, debugging, and testing C++ applications in a high‑performance environment.\nWillingness to collaborate with project managers and technical leads to build roadmaps for product development.\nDesire and ability to function in an Agile team environment.\nKnowledge of DevSecOps methodologies and secure software development best practices.\nAbility to develop and maintain detailed product documentation.\n\nDesired Qualifications:\nTop Secret clearance preferred\nPrior experience developing weapon system models, including kinetic and non‑kinetic engagements.\nFamiliarity with sensor technologies such as EO/IR imaging systems and radar.\nIntermediate proficiency with Python and MATLAB for data analysis, prototyping, or model validation.\nMaster’s degree in a technical field (e.g., Computer Science, Electrical Engineering, Aerospace Engineering).\n\nThe pay range for this position is $120,000 year to $150,000/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.\n\n#LI-JJ1\n\nSecret\n\nPerks and Benefits\nVacation:\nNew Hires Accrue 20 days of PTO and 10 Holidays per Year\nHealth Insurance:\nZero Deductible Health Plans\nFlexible Schedules:\nFlex Schedules\nProfessional Development:\nUp to $10,000 Annual Education/Training Reimbursement\nESOP:\nFunded Stock Ownership Plan\n401k Match+:\n6% 401k Match + Immediate Vesting\nBonus Program:\nSemi-Annual Bonus Opportunity\nMentorship:\nCareer Mentorship Programs\nWhy is MTSI a great place to work\nInteresting Work:\nOur co-workers support some of the most important and critical programs to our national defense and security.\nValues:\nOur 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.\n100% Employee Owned:\nWe 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.\nGreat Benefits - Most Full-Time Staff Are Eligible for:\nStarting PTO accrual of 20 days PTO/year + 10 holidays/year\nFlexible schedules\n6% 401k match with immediate vesting up to $9k annually\nSemi-annual bonus eligibility (July and Decemeber)\nCompany funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account\nUp to $10,000 in annual educational reimbursement\nOther company funded benefits, like life and disability insurance\nOptional zero deductible Blue Cross/Blue Shield health insurance plan\nTrack Record of Success:\nWe have grown every year since our founding in 1993.\nModern 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\nMTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.\nFor more information about MTSI, please visitwww.mtsi-va.com\nEEO Statement\nMTSI 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.\n\nWhy is MTSI a great place to work\nInteresting Work: Our co-workers support some of the most important and critical programs to our national defense and security.\nValues: 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.\n100% 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.\nGreat Benefits - Most Full-Time Staff Are Eligible for:\nStarting PTO accrual of 20 days PTO/year + 10 holidays/year\nFlexible schedules\n6% 401k match with immediate vesting up to $9k annually\nSemi-annual bonus eligibility (July and Decemeber)\nCompany funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account\nUp to $10,000 in annual educational reimbursement\nOther company funded benefits, like life and disability insurance\nOptional zero deductible Blue Cross/Blue Shield health insurance plan\nTrack Record of Success: We have grown every year since our founding in 1993.\nModern 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\nMTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.\nFor more information about MTSI, please visit www.mtsi-va.com","datePosted":"2026-08-05T13:58:52.161Z","dateModified":"2026-08-05T13:58:52.161Z","hiringOrganization":{"@type":"Organization","name":"Modern Technology Solutions","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Dahlgren","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"2dd44c9e1e834df3057c82e2"},"url":"https://jobsearcher.com/jobs/2dd44c9e1e834df3057c82e2"}}