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Salary
$73k – $133k per year
Location
In office (Odenton)
Seniority
Middle · 4+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 3, 2026. First seen by Alion on Sep 10, 2026. Leidos scores A on the Alion truth index.

Overview
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Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

Leidos is seeking a Senior Network Engineer to join our Defense Enclave Services (DES) team at Ft. Meade, MD. The DES program is a highly demanding mission and requires expert technical and professional management to support DISA's enterprise Information Technology (IT) services. You will be supporting a large and complex IT discovery, design, and migration effort aimed at consolidating Department of Defense (DOD) IT services into single service provider model. This role will include discovery, analysis, design, and network migration activities necessary to move a host of DoD agencies into the modernized DoDNetenvironment.

Primary Responsibilities:

  • Plan and design secure network solutions to consolidateconnectivity services under an enterprise service.

  • Partner with key stakeholders and technical experts to perform legacy environment discovery, assessing current capabilities, configurations, and unique requirements to develop a design and architecture leveragingapproved design patterns.

  • Design secure wide area connectivity inclusive of underlay, overlay, and COI transport design that supports performance, quality of service, security, and mission requirements.

  • Provide secure access solutions leveragingwired and wireless technologies, integrating standards, use cases/scenarios, and develop associated implementation and transition plans.

  • Integrate capacity planning and scaling of network and security stack environments into the overall design of solutions.

  • Collect, investigate, and identifynetwork optimization strategies and techniques to meet capacity and performance standards.

  • Identifylegacy service paths (i.e.dataflow, firewallrulesets, and ACLs) and develop strategies and designs for the to-be enterprise service capability to meet requirements while balancing security, sustainability, and maintainability.

  • Support development of IP addressing schemes across IPv4 and IPv6 networks.

  • Work with information assurance teams to ensure compliance toDoD standards to assistwith providing accreditation artifacts.

CLEARANCE REQUIREMENT: Must hold an active Secret security clearance prior to start and be able to obtain a Top Secret. (US Citizenship required)

Basic Qualifications:

  • Bachelor’s degree and 4+ years of prior relevant experience. Specific experience, educationand training may be considered in lieu of degree.

  • Active DoD Secret clearance

  • Require network certification which shall meet or exceed a CCNA (comparable vender certification accepted upon review).

  • Require active DoD IAT Level II (i.e.Security+) certification or equivalent prior to start.

  • Experience documenting logical or physical designs using drawing tools (e.g.Visio, Powerpoint, Gliffy, Cameo, MagicDraw) to depict systems, subsystems, interfaces, components, and communications of I/T applications and infrastructure

  • Experienced and comfortable with conducting technical troubleshooting to resolve issues.

  • Experience conducting site surveys or analyzing data obtained from site surveys.

  • Experience creating or executing a migration plan to move circuits, network traffic, services, applications, or data between environments or to a commercial cloud provider. Alternatively, experience planning or executing a technology refresh or lifecycle refresh of an existing I/T system.

  • Heavily experienced in upgrading and LCR of network devices.

  • Must have broad exposure to common I/T infrastructure networking in the areas of LAN, WAN, TCP/UDP, IPSec, VPN, Proxies, Routing(L2/L3), and Firewalls.

  • Must have experience in working with two or more of the following vender network technologies: Cisco, Juniper, F5, Aruba, Palo Alto, Dell, Brocade, and Fortinet.

  • Demonstrated experience in designing and implementing medium to large network infrastructure and producing corresponding technical documentation.

  • Must be able to work as part of a team to troubleshoot and resolve complex network issues.

  • Excellent written and verbal communication skills. This shall include drafting SOPs and technical documentation.

  • Requires ability to communicate with executive leadership (internally or client) regardingmatters of significant importantto the organization/project.

  • Must be able to present designs and plans to technical leadership personnel and boards for approvals.

Preferred Qualifications:

  • Certified Cisco Network Professional (CCNP) or equivalent.

  • Demonstrated experience in one or more of the following enterprise network management tools such as PaloAltoPanorama, SolarWinds, Cisco Prime, Cisco DNA, What’s Up Gold, or Junos Space.

  • Experience in designing and implementing VTC solutions.

  • Experience with ScienceLogic SL1 and/or SolarWinds.

  • Hands on experience with SD-WAN.

  • Demonstrate expertisein design and improvement of complex and geographically enterprise networks.

  • Expert knowledge of DoD security requirements for network infrastructure.

  • Demonstrate experience in system hardening of network infrastructure to include DoD STIG implementation.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

September 10, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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