Washington, District Of Columbia

Where applicable, confirmation that you meet customer requirements for facility access which may include proof of vaccination and/or attestation and testing, unless an accommodation has been approved.

Secure our Nation, Ignite your Future

ManTech is seeking a motivated, career and customer-oriented Computer Network Defense (CND) Cyber Security Tools Systems Engineer to support an Intelligence Community (IC) customer in the Washington DC area. Candidate will support the design, development, documentation, testing, integration, security control implementation and testing, assessment and authorization, and deployment to Production for Cyber Security Tools.  Candidate will document planned capability architectures and designs, planned upgrades and capacity expansion of cyber tools, provide initial integration and interoperability testing, fully deploy and configure Cyber Security Tools in a Cyber Lab environment to document overall design of each capability, achieve an Interim Authorization to Test (IATT), and deploy the fully configured and documented solution into a Cyber Lab Test environment. Candidate will proceed to implementation to develop security test plans, support all RMF security assessment and authorization events, integrate new capabilities into the existing Cyber Security Enterprise Architecture, follow required change and configuration management processes, and deploy fully configured and functional cyber defense systems into Production for Tier I to take over for Sustainment.

Responsibilities include, but are not limited to:

  • Plan and deploy upgrades and expansion of the existing and future configuration and implement designs and/or upgrades

  • Design, test and produce detailed integration planning and implementation guidance for defense-in-depth and zero trust strategies and Cyber Security Tools technology integration activities to ensure secure and seamless interaction with future IC directed initiatives

  • Collaborate with technical leads and team members to ensure successful delivery of projects

  • Minimal local travel may be required between government customer site (Washington, DC) and contractor site (Springfield, VA)

Basic Qualifications:

  • Bachelor’s Degree in Computer Engineering, Computer Science or other closely related IT discipline and 2 or more years of relevant experience

  • Possess IAT Level II certification

  • Experience with DoD or Federal compliance testing methodologies

  • Experience applying and verifying implementation of Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs)

Preferred Qualifications:

  • Experience with SAFe Agile Scrum Development methodologies with a cross-functional team approach

  • Experience with DIACAP, DoD RMF or Federal Certification and Accreditation Processes for IT systems

  • Experience preparing DoD Risk Management Framework (RMF) accreditation packages

  • Possess Cyber Security Service Provider – Information Security (CSSP-IS) certification

Security Clearance Requirements:

  • Current TS/SCI clearance (or active TS with SCI eligibility) with a Polygraph or ability to obtain a Polygraph before starting employment

Physical Requirements:

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

  • The person in this position 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.

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Washington, District Of Columbia

ManTech was founded in 1968 to provide advanced technological services to the United States government. We began with a single contract with the U.S. Navy to develop war-gaming models for the submarine community. Over the years, our government's technology needs have increased dramatically in scope and sophistication, and we have grown to meet that challenge.


For more than 4 decades, we kept a careful eye on where emerging technologies were taking the government, and we developed the resources to master those technologies—by staying close to our customers and anticipating their needs, hiring talented professionals to propel us into the future, and acquiring companies with proven capabilities.


Today, we are a multi-billion-dollar public company that provides the innovation, adaptability, and critical thinking our government needs for success in defense, intelligence, law enforcement, science, administration, health, and other fields—throughout the nation and in many countries throughout the world. We are now applying the lessons learned in the unforgiving arena of national security to help the private sector protect networks and critical information.

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