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Network Engineer

Location: Lorton, Virginia Categories: Information Technology Req ID: 2022-6317 Potential to Telecommute: No

Job Description

Modern Technology Solutions, Inc. (MTSI) is seeking a Network Engineer to join our team.  You will be responsible for the installation, operation and maintenance of system and networking technologies.

At MTSI, our more than 1,400 co-owners recognize the high demand for specialized professionals within our industry and that you have many options to choose.  As an employee owned company where culture matters, we believe that by investing in our people we are investing in our company’s future!  

MTSI’s core capabilities are Systems Engineering and Integration, Modeling and Simulation, Test and Evaluation, Acquisition and Program Support, and Mission Assurance services. Our expertise includes ballistic missile defense, air defense, air vehicle survivability, unmanned aircraft, flight test operations, intelligence support, and cyber/space/homeland defense.

As a recognized "employee comes first" company with over 27 years of consecutive growth we challenge our co-owners to provide the highest level of support and service, and reward them with some of the best benefits in the industry.  Day one all new co-workers start with 20 days PTO, 6% 401k match with immediate vesting, semi-annual bonuses, and eligibility to participate in our Employee Stock Ownership Plan (ESOP).  We offer other employee focused benefits, including up to $10k in tuition reimbursement and an optional zero dollar deductible BCBS health insurance plan.

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As a Network Engineer with MTSI, you will be responsible for installation, upgrading, monitoring, maintaing and supporting Networks for multiple Special Access Programs (SAP) both software and hardware systems.  You will interact daily with Air Force program managers and industry subject matter experts across multiple domains (air, space, cyber) supporting Department of Defense (DOD), and Intelligence Community (IC) customers. This position will be located in the Washington, DC area.

Your essential job functions will include but may not be limited to:

  • Manage the purchase, installation, and support of network communications, including LAN / WAN systems
  • Support current systems / manage complex problems where analysis of situation requires in-depth evaluation
  • Assist in the planning for large-scale projects through vendor comparison and cost studies
  • Design and define system architecture for new / existing systems
  • Support implementation, configuration, operations and maintenance of multiple systems



  • Ten (10)+ years' experience working as a Network Engineer or in a related field.
  • Experience developing high-level project/work plans.
  • Installing, configuring and managing network switches and routers (versed in OSPF, MPLS, SDN, routing/switching on Juniper and Cisco hardware platforms).
  • Proficiency with Active Directory, domain controllers, IP addressing, DNS, remote access, VLANs, and VoIP systems.
  • Experience in working networks at all classification levels (Unclassified/S/TS).
  • Experience installing and configuring firewalls.
  • Experience performing network upgrades and data migrations.
  • Experience in large network environments with the willingness to also work in small offices.
  • Well versed in network monitoring software. The ability to work independently and as a team member.
  • Experience managing AWS/Azure environments.
Education Requirements:
  • Bachelor's degree in an IT-related field (e.g., cybersecurity, computer science, computer engineering).
  • 14 years of experience is accepted in lieu of a degree.
Professional certifications:
Must maintain a minimum of one IAT Level II or higher DoD 8570 Information Assurance Workforce Improvement Program security certifications. One or more of the following required:
  • Microsoft Certified Solutions Associate (MCSA)
  • Microsoft Certified Systems Engineer (MCSE)
  • Cisco Certified Network Associate (CCNA)
  • Cisco Certified Entry Networking Technician (CCENT)
Clearance Requirements:
  • TS with ability to obtain SCI.
  • Please Note: U.S. Citizenship is required for this position.


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Opportunities at MTSI

MTSI maintains an outstanding work environment that includes competitive compensation, outstanding benefits, the opportunity to be an employee-owner, and challenging work assignments with significant opportunities for advancement/career growth. To be considered for employment opportunities at MTSI, you must complete an online application.

EEO Statement: MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action-Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, military/veteran status, disability, or any other characteristics protected by law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment with MTSI and need special assistance or accommodation to use our website or to apply for a position, please send an e-mail with your request to Determination on requests for reasonable accommodation is made on a case-by-case basis.

MTSI posts all open positions of employment here on our official website Careers page. MTSI Recruiters will always make direct personal contact with candidates by either speaking directly via telephone call, face-to-face video conference, or in-person, and will never conduct interviews or extend offers of employment via text or using messaging applications. If you believe you may be the victim of employment fraud, we encourage you to contact the Federal Trade Commission (FTC) thru their website: