Network Engineer - Military veterans preferred

ManTech (


  full-time   employee

District of Columbia
United States

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

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

We take National Security seriously. We focus on strategic and unified work to strengthen the security, resiliency, and workforce of the cyber ecosphere. This is your opportunity to join a team that is making an impact on protecting National interests including state, local, tribal and territorial Governments and critical infrastructure.


Currently, ManTech is seeking a motivated, mission and customer-oriented Network Engineer to join our team in the Washington D.C. area.  


Responsibilities include but are not limited to: 

  • Designs, configures, administers, and troubleshoots complex network environments across multiple geographic locations.  

  • Troubleshoots, diagnose, and resolve hardware, software, and other network and system problems 

  • Coordinate’s computer network access and use 

  • Designs, configures, and test networking software, computer hardware, and operating system software 

  • Provide in-depth engineering analysis of network communications alternatives for government agencies in support of their strategic modernization efforts and communications enhancement design for medium and large-scale network infrastructure 

  • Configuring firewalls, routing, and witching to maximize network efficiency and security 

  • Maximizing network performance through ongoing monitoring and troubleshooting 

  • Will also be responsible to create and update tenant request forms as well as technical and process documentation for internal use 

  • Provide interface support to agency end users, operations personnel, infrastructure engineers and strategic program management 
    Coordinate and implement complex migrations related to network components (LAN and WAN) in a cloud environment, including knowledge of Python, Ansible or similar scripting languages 

  • Create and update Low/High level LAN diagrams 


Required Qualifications: 

  • BS degree in Computer Science/Engineering/Information Technology  

  • A minimum of (10) years of relevant experience  

  • A minimum of (5) years of experience in networks with routing and switching (L2/L3) in an enterprise environment  

  • Experience in engineering integration activities with all cloud services 

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

  • Excellent technical knowledge and troubleshooting on Cisco LAN, WLAN and WAN technologies 

  • Experience in network security applications, storage, and firewalls 

  • Excellent written and verbal communication skills 

  • IT Infrastructure Library (ITIL) 4 certification 

  • Cisco Certifications:  CCNP or CCNA 


Preferred Qualifications: 

  • Master’s degree in Computer Science or Engineering with 3 - 5 years of related experience  

  • Experience deploying and maintaining Software Defined Networking (SDN) solution 

  • Cisco Certifications:  CCIE desired 


Clearance Requirements: 

  • Top Secret w/SCI 


Physical Requirements: 

  • Must be able to be in a stationary position more than 50% of the time 

  • Must be able to communicate, converse, and exchange information with peers and senior personnel 

  • Constantly operates a computer and other office productivity machinery, such as a computer 

  • 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 

  • The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

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 and provide your name and contact information.