Implementations Network Engineer III

Overview

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 to start.

Basic Qualifications:

• Proficient knowledge of various network hardware equipment specifications, configuration and testing processes, and industry specifications.
• Knowledge of configuring, activating, testing, and analyzing network systems.
• Network engineering, problem management, and performance management experience.
• Understanding of basic telecommunications and information technology terms and technology.
• 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).
• 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.
• Experience performing customer outreach.
• Experience with DISA Request Fulfillment process and associate documents (TSRs, TSOs, completion reports) and circulars experience.
• Basic understanding of Department of Defense, its policies, and hierarchy.
• Basic understanding of DISA organizational structure and how different elements contribute to fulfilling mission partner TSR requirements.
• Network certifications:
  Cisco Certifications (CCNA, CCNP, etc.), Microsoft certifications (MCSE, etc.), security certifications (Security+ CE, CISSP, etc.)- ITIL certification.

Required

Education and Experience:

• Requires BS and 4-8 years of prior relevant experience or Masters with 2-6 years of prior relevant experience (or equivalent combination of education and/or experience).

Role Context 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.

About the posting February 4, 2026.

Pay Range: $73,450.00 - $. 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 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.