**ManTech** seeks a motivated, career and customer-oriented **Systems Engineer** to join our team in **Dahlgren, VA.** This is an **onsite** position. **Responsibilities include but are not limited to:** + Providing technical, engineering, and analytical services for Test and Evaluation (T&E) of Situational Awareness, Boundary Enforcement & Response (SABER) for navigation system software + Evaluating system-level requirements, writing test cases, scenarios, and procedures to assess operational capabilities defined by system requirements and mission threads + Executing test procedures, analyzing data, and creating detailed trouble reports to assist system developers and subject matter experts in understanding and recreating identified problems, and evaluating impacts on system capabilities + Collaborating with a contractor/government-integrated test team to provide backup data, research, and analysis to support test findings and recommendations for software certification + Up to 20% travel to locations such as John Hopkins Applied Physics Laboratory (APL) in Laurel, MD **Minimum Qualifications:** + 4+ years of experience and knowledge of Combat System or Weapons Systems performing Test & Evaluation + Computer Software Engineering experience in at least one of the following areas: Test requirements definition, Test plan/procedures development, maintenance, and execution, Test data reduction, automation, and analysis, Computer program performance analysis and reporting + Experience with developmental or operational systems/computer program versions used in the past seven (7) years, specifically with real-time Naval tactical and related support computer programs + Experience with cybersecurity situational awareness, boundary enforcement, and response for Navy systems **Preferred Qualifications:** + Bachelor’s degree in Computer Science or a related field + Previous experience with navigation systems + Solid understanding of system software development **Clearance Requirements:** + US Citizenship required and an active Secret clearance **Physical Requirements:** + Ability to remain stationary for 50% of the time + Occasional movement within the office for communication and accessing resource 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.