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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Engineer - **Company:** Mantech International Corporation - **Location:** Stafford, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, Cloud Computing, Configuration Management, Computer Networks, Network Interface Controllers, Scrum Methodology, Software Maintenance, Systems Development Life Cycle, Requirements Management, Virtualization Technology - **Published:** August 10, 2026 - **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-D1B366ECFDF750E3EC/ ## About the Role MANTECH is seeking a motivated, customer-oriented Senior Systems Engineer to help support our current Marine Corps Contract in Stafford, VA. This engineer will be acquisitions-focused and will support the government's Model Based Systems Engineering initiatives., * Bachelor's degree and at least 5 years of related experience supporting DoD programs in mission systems engineering. An additional 2 years of experience may be substituted in lieu of degree. * Experience with DoD 5000 processes and requirements. * The experience should show increasing responsibility in MBSE and DE environments, development or maintenance of software, system development, system design, and/or information networks., * Prior Military experience (enlisted or officer) * Knowledge of DoD/USMC garrison and tactical environments. * DAU Engineering Level I or higher certification * Knowledge of systems development lifecycle, network/systems design and implementation, virtualization and cloud technologies. * Agile Scrum Master Clearance Required: * Must have an active DoD TS/SCI Clearance Physical Requirements: * Sedentary Work. ## Description * Provide technical expertise in research and development, acquisition and sustainment of innovative tactical intelligence collection, processing, and dissemination equipment. * Support engineering activities and programmatic milestones through the development and review of engineering documentation (System Engineering Plans, Test and Evaluation Master Plans, Interface Control Documents, System Specifications, etc.) and requirements documentation, system engineering technical review (SETR) briefing materials, configuration management activities and program schedules. * Provide technical support, coordination, and recommendations to the Government Project Office using general systems engineering, system design, system development life cycle principles and/or requirements analysis. * Support the government's Model Based Systems Engineering and Digital Engineering initiatives. * Support and participate in systems engineering technical reviews (systems requirements review, preliminary and critical design reviews, integration readiness review, and system acceptance review) through documentation preparation, review of criteria, and preparation of briefing material. * Performs system/subsystem definition, preliminary and detailed design, design implementation, system/subsystem integration, and tests for a system/subsystem efficacy and conformity. * Interface with the Program Office to manage engineering tasks, provide subject matter expertise in acquisition engineering best practices, and analyze technical problems; develop courses of action and present recommendations to leadership on solutions. * Must have the ability to travel up to 10%. ## Related Videos - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [Distributed search under the hood](https://www.wearedevelopers.com/videos/256-distributed-search-under-the-hood) - [Coffee with Developers - Cassidy Williams - ](https://www.wearedevelopers.com/videos/912-coffee-with-developers-cassidy-williams) - [Green Cloud Computing](https://www.wearedevelopers.com/videos/592-green-cloud-computing) - [Grappling With Clunky Old Software? 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