Principal Network Systems Engineer, CHANTILLY, VA


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Full time

Posted 5 Days Ago


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 Principal Network Systems Engineer to join our team in Chantilly, VA.

We offer 10k sign-on bonus OR 10K Relocation assistance with outstanding benefit package 

Responsibilities include, but are not limited to:

Ensure the architecture and design of the customer’s information systems are functional and secure.  

Provide system or network designs that encompass multiple computers and networks to include those with differing data protections/classification requirements.

Develops test and integration plans for new systems and software to ensure compatibility with current IT infrastructure.  

Provides operational support and maintenance, when necessary, to ensure systems functionality, availability, security, and performance.

Ensures all systems meet or exceed the business and security requirements in accordance with DOD directives and guidelines.

Prepares technical documentation, to include standard operating procedures and processes as well as Visio diagrams

Develops resolutions to complex problems that require the frequent use of creativity.

Administers and maintains classified networks and telecommunication systems and services to ensure optimum performance and availability.

Maintains technical proficiency in new IT technologies; keeps abreast of industry trends and makes recommendations to improve or advance services and system performance.

Communicates all computer network, system and service problems and outages immediately to the appropriate chain of command

Basic Qualifications:

DoD 8570.1 / DoD 8140.01 (IAT II Level) certification

DoD 8570 Computing Environment certification within 6 months of hire

Bachelor’s degree (preferably in IT, Cyber Security, Computer Science, Information Systems Management, Engineering, or similar field of study) and have 7+ years’ experience with information networks and related security concerns; or a Master’s degree with 5+ years’ experience. Work experience or industry certifications demonstrating technical proficiency may be substituted for education requirements

Experience with Agile Scrum Methodology

Preferred Qualifications:

Experience with Microsoft operating systems and software, VMware technology suite and Linux

Experience with VMware datacenter solutions for enclaves, multitenancy, high availability and disaster recovery

Experience with RMF and DODAF 2.0 documentation standards and Change Management process

Professional level MS, Linux, VMware, or cloud certifications

Ability to work with minimal supervision 

Security Clearance Requirements:

US Citizenship and active TS clearance is required.  SCI eligibility highly desired. Willingness to submit for CI Polygraph.

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.

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 contact and provide your name and contact information.

ManTech / Equal Opportunity Employer

JBMAN-R36041 2023.07.16

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