Implementations Network Engineer

Leidos LLC; Shiloh (IL); On-site; USD 59,000 - 107,000; Full time

Job summary

Leidos is seeking an Implementations Network Engineer at Scott AFB, IL to oversee installation, configuration, testing, and activation of DoD DISN network services. You will coordinate IT&A activities, manage out-of-band networks, and upgrade Cisco and Juniper devices to meet DISA standards.

The role requires DoD experience, a Secret clearance, and BS degree with 2–4 years of relevant work. Expect collaboration with DISA project managers and customers to drive timely service delivery.

Qualifications

• BS degree or higher with relevant experience.
• Active DoD security clearance is required (Secret).
• Experience with DoD DISA standards and network activations.

Responsibilities

• Coordinate with customers for IT&A and data input for new network activations.
• Configure and maintain DISA out-of-band management networks (Cisco/Juniper).
• Upgrade software on Cisco and Juniper devices.
• Develop IP addressing schemes and port allocations for sites.
• Perform systems analysis to determine hardware/software requirements.
• Verify POC, location and interface data are accurate.
• Engage project managers to resolve unclear requirements.
• Facilitate approvals to keep service requests moving forward.

Skills

Network engineering

Configuration & testing

Problem management

Performance management

Team collaboration

Education

BS degree

Tools

Cisco devices

Juniper devices

BGP

OSPF

DHCP

DNS

TCP/IP

WAN

VPN

VLAN/VRF

Job description

Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the department of Defense (DoD) and national security organizations. This position directly supports the DISA-provided capabilities and services. The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for an Implementations Network Engineer at Scott AFB, IL. The Implementations Network Engineer will perform installation oversight, configuration, testing, monitoring, servicing of network equipment and activation of networks for projects supporting the Department of Defense networks. This position requires U.S. citizenship and an active Secret clearance.

Daily Responsibilities

• Perform customer coordination, Initial Test and Acceptance (IT&A), execution of all reporting functions, and complete data input associated with new network equipment and service activations to ensure they are implemented in accordance with Defense Information Systems Agency (DISA) standards.
• Configure and maintain DISA’s out-of-band management network consisting of Cisco and Juniper devices using baseline configurations customized for each site.
• Upgrade software on Cisco and Juniper devices.
• Create/update project planning documentation to support selecting and creating IP addressing schemes (subnet selection, equipment management IP selection) as well as assigning ports on out-of-band management nodes.
• Perform systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional requirements in support of customer resources.
• Ensure all information (POC, location, & interface) is correct and formatted properly according to provided requirements.
• Verify correct points of contact (POC) for each location through which the circuit traverses.
• Engage with the DISA project managers and/or customers to resolve issues with incomplete or unclear requirements.
• Reach out to stakeholders and facilitate approvals as necessary to ensure continual forward progress of the service request.

Basic Qualifications

Proficient knowledge of various network hardware equipment specifications, configuration and testing processes, and industry specifications. Network engineering, problem management, and performance management experience. Knowledge of networking architecture, evaluating, and recommending new technologies to enhance current capabilities and performing needs assessments. Knowledge of data and voice network design carried over various transmissions systems, router to router connections using military and commercial protocols such as BGP and ISIS, switch-to-switch trunking to include VLANS, and circuit configurations through multiplexers. Experience with network services (BGP, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, etc.) and network appliances (e.g., routers, load balancers, domain name servers, firewalls). Knowledge of configuring, activating, testing, and analyzing network systems. Ability to work in a team environment, but self-driven to complete assignments while continually developing proficiencies in processes. Strong written and verbal communications, team building and collaboration skills. An active Secret security clearance is required. DoD-8570 IAT Level 2 baseline certification (Security+ CE or equivalent).

Preferred Qualifications

Prior experience at DISA, or knowledge of DISA systems and processes Prior experience with SharePoint data entry, DDOE, or SharePoint order processing. Order services on behalf of the customer; input service requests into DISA Storefront (DSF) Experience providing customer outreach on all orders to ensure accuracy of the POC, location, and interface

Required Education & Experience

Requires BS degree and 2-4 years of prior relevant experience or Masters with less than 2 years of prior relevant experience.

Company Profile

GSMO 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 15, 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 $59,150.00 - $106,925.00 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.

About Leidos

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.