Hanover, Maryland

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 Senior Network Engineer to join our team in the ManTech’s Hanover, MD location. 

As a Senior Network Engineer you will perform and lead engineering initiative to design and implement a secure software importation system involving Internet-connected and air-gapped classified systems.  Must be a self-starter with a strong background in Unix/Linux, some Windows systems administration and configuration, storage solutions, virtualization/Cloud infrastructure, and networking. 

Responsibilities include, but are not limited:

•    Performs engineering services to analyze Customer networks architecture to design and implement a secure software importation dataflow from Internet-connected systems to air-gapped classified networks. 
•    Responsible for maintaining and engineering solutions for networks supporting software acquisition and classified destination systems at different classification levels. 
•    Work with a team to analyze requirements specifications and design constraints to evaluate optimal solutions in compliance with DoD guidelines
•    Utilize your knowledge of Linux, scripting, and Cloud architectures to provide solutions to automate FOSS software data flows as well as repetitive tasks
•    Provide technical expertise to customer stakeholder requirements for establishing and maintaining software repositories in both Internet-connected and offline networks

Basic Qualifications:
•    Minimum ten (10) years experience in network administration
•    Proficiency in working with applicable network devices to include repeaters, bridges, routers, gateways, and hubs
•    Minimum seven (7) years experience with computer networking protocols including, but not limited to TCP, IP, UDP, HTTP, DHCP, and DNS
•    Minimum five (5) years experience with integrated processing environments such as Storage Area Networks
•    Cisco certifications preferred (CCNA, CCNP, CCIE)
•    Working knowledge of virtualized, networked environments, specifically VMWare and HyperV based systems
•    Experience with security COTS product integration (e.g., firewall, web gateways, Data Loss Prevention)
•    Ability to identify technical problems, research and define solutions, and implement in a timely manner with minimal or no oversight
•    Strong verbal and technical writing skills

Preferred Qualifications:

•    Experience working on Cloud-Edge connectivity solutions and experience with AWS and Azure
•    Experience with security design and architecture of Cross Domain solutions (CDS)

Security Clearance Requirements:

•    TS/SCI w/ Full Scope Poly

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 http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click careers@mantech.com and provide your name and contact information.

Hanover, Maryland

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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