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Full time


Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first.  At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented All Source SME to join our team in Maryland.

The Systems Engineer III focuses on DoD 5000.02 artifacts and documentation. The Systems Engineer III is responsible for applying system’s engineering principles throughout the systems lifecycle phases: concept, development, production, utilization, support, and retirement. The Systems Engineer III interacts with the Government regarding systems engineering technical considerations and for associated problems, issues, or conflicts. The Systems Engineer III communicates with other TDP project personnel, Government stakeholders, and senior executives. The Systems Engineer III is responsible for the technical integrity, quality, and completeness of work performed and deliverables associated with one or more of the 25 process areas defined by ISO/IEC15288, to include: Technical Process Area, Enterprise Process Area, and Agreement Process Area. The Systems Engineer III contributes to the development of sections of systems engineering documentation, such as System Engineering Plans, initial capability documents, requirements specifications, and interface control documents. The Systems Engineer III supervises and mentors subordinate project and Team ManTech staff.

Required Qualifications

Bachelor’s degree in STEM field. 

5 years of position-relevant work experience.  

DoD 8570.01-m IAT Level II. 

Experience with DoD 5000.02 documentation requirements. 

Experience with use case development.  

Experience with requirements derivation. 

Experience with developing technical project artifacts.  

Familiarity with Agile software development process.  

Experience with software engineering processes.

Desired Qualifications

Bachelor’s degree in Systems Engineering. 

Master’s degree in STEM field.

Security Requirements


Physical Requirements:

Must be able to remain in a stationary position 50%.

Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.



For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

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 because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech’s Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer – minorities, females, disabled and protected veterans are urged to apply. ManTech’s utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access as a result of your disability. To request an accommodation please click ca*****@ma*****.com and provide your name and contact information.

ManTech / Equal Opportunity Employer / JBMAN-R41682 


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