ManTech seeks a mission-focused **Senior** **Combat Systems Engineer** to join our team in **Washington, D.C.** This position offers a **fluid hybrid schedule** , requiring at least one in-office day per week. Some weeks may necessitate full in-office attendance, depending on customer needs In this position you will help coordinate the integration, transfer, and sustainment of U.S. Navy combat systems to our allied nations. **Responsibilities include but are not limited to:** + Providing subject matter expertise on U.S. Navy combat systems + Supporting the planning and execution of FMS case activities throughout the lifecycle, including requirements definition, system integration, and sustainment + Coordinating with U.S. government stakeholders, international partners, and industry to ensure accurate and timely delivery of FMS systems and services + Assisting in the development and review of technical documentation, including Statements of Work (SOWs), cost estimates, and system specifications + Tracking project milestones and deliverables, ensuring alignment with case timelines and funding constraints + Participating in technical reviews, working groups, and integrated product teams to support successful program execution + Conducting research and analysis on international customer requirements and U.S. Navy capabilities to support decision-making and case development + Travel up to 25% which may include both CONUS and OCONUS travel **Minimum Qualifications:** + 10+ years of Navy combat systems experience, with specific experience supporting Aegis combat system + Bachelor’s degree in any discipline OR equivalent education and relevant years of experience may be substituted in liue of degree + Must possess a Valid passport **Preferred Qualifications:** + Experience with Foreign Military Sales (FMS) **Clearance Requirements:** + Must be a U.S. Citizen and possess an active or current U.S. government Secret security clearance **Physical Requirements:** + The person in this position must be able to remain in a stationary position 50% of the time. + Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.