Implementations Network Engineer I
Marathon TS Inc· Government IT· Apr 21, 2026 · 6mo agoPosted 189 days ago
Belleville, IL
In office
Full-time
Mid
$115K–$166K est.
2+ years exp
Before you apply
Ghost Signal:
Open since April 21, 2026 — 189 days, and still accepting applications.
Job description
This position requires U.S. citizenship and an active Secret clearance to start.
Primary Responsibilities
Responsible for assisting with the following duties:
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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.
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Configure and maintain DISA's out-of-band management network consisting of Cisco and Juniper devices using baseline configurations customized for each site.
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Upgrade software on Cisco and Juniper devices.
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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.
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Perform systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional requirements in support of customer resources.
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Ensure all information (POC, location, & interface) is correct and formatted properly according to provided requirements.
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Verify correct points of contact (POC) for each location through which the circuit traverses.
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Engage with the DISA project managers and/or customers to resolve issues with incomplete or unclear requirements.
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Reach out to stakeholders and facilitate approvals as necessary to ensure continual forward progress of the service request.
Basic Qualifications:
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Knowledge of various network hardware equipment specifications, configuration and testing processes, and industry specifications.
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Knowledge of data and voice networks 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.
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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).
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Knowledge of configuring, activating, testing, and analyzing network systems.
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Ability to work in a team environment, but self-driven to complete assignments while continually developing proficiencies in processes.
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Strong written and verbal communications, team building and collaboration skills.
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An active Secret security clearance is required.
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DoD-8570 IAT Level 2 baseline certification (Security+ CE or equivalent).
Preferred Qualifications:
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Prior experience at DISA, or knowledge of DISA systems and processes
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Prior experience with SharePoint data entry, DDOE, or SharePoint order processing.
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Order services on behalf of the customer; input service requests into DISA Storefront (DSF)
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Experience providing customer outreach on all orders to ensure accuracy of the POC, location, and interface
Required Education and Experience:
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BS degree or equivalent experience and less than 2 years prior relevant experience.
Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status ").
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