JobsUSASenior IT Systems Engineer
Company : ManTech International
Location : Chantilly, VA
Posted Date : 15 September 2025
Job Type : Other
Category : Industrial Engineering
Occupation : Systems Engineer
Job Details
MANTECH seeks a motivated, career and customer-oriented Senior IT Systems Engineer to join our team in Chantilly, VA.
nResponsibilities include but are not limited to:
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Providing server/operating system centric knowledge for testing, deploying, integrating, and improving upon new and existing IT capabilities.
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Assisting with recommendations related to understanding operating system dependencies, physical and virtual server environments, integration with infrastructure resources (e.g. storage and networking), and how to configure operating systems and applications in an efficient manner.
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Maintaining platforms of common hypervisors and enterprise applications, including collaboration tools, Systems Information and Event Monitoring (SIEM) products, directory services, and automation technologies.
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Identifying security vulnerabilities, testing and documenting security-relevant changes, and communicating with vendors to assess new technologies.
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Minimum Qualifications:
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A Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline. An Associate's degree with an additional two years of experience may be substituted.
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5+ years of relevant experience in information technology, using software applications and tools to meet customer requirements.
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Certification: A current DoD 8570 IAT II certification (e.g., Security+, SSCP) or the ability to obtain one within 180 days of hire.
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Proven experience writing clear, concise, and user-friendly technical and training manuals, including documentation required for A&A IAW ICD 503.
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Experience with Windows administration, Active Directory, administrative scripting languages, and the integration, deployment, troubleshooting, and maintenance of operating systems in a multi-domain environment.
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Knowledge and experience with virtual infrastructure technologies, all components of Windows and Linux system infrastructure, Local Area Network/Wide Area Network technologies, Storage Area Network (SAN), clustering, and backup technologies.
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Experience and proficiency with systems engineering concepts, principles, theories, and system modeling tools, along with the ability to travel domestically.
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Clearance Requirements:
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- Must have a current/active TS/SCI w/Polygraph. n
Physical Requirements:
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Must be able to remain in a stationary position 50%
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Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
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Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
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Must be able to exchange accurate information in these situations.
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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.
nIf 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 and provide your name and contact information.
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