Senior Network Engineer - Classified Govt IT & Automation

LMI Government Consulting; Northern (KY); Hybrid; USD 90,000 - 150,000; Full time

Job summary

LMI Government Consulting is seeking a skilled Network Engineer to design, build, maintain, and sustain classified network infrastructure supporting enterprise IT operations across multiple government sites. This position requires work with TS/SCI users and cross-functional teams to ensure reliable, secure connectivity.

Responsibilities include designing networks, implementing automation, maintaining diagrams, and supporting NOC/SOC activities, with travel up to 50% for program locations.

Qualifications

• Bachelor's degree or equivalent experience.
• 5+ years of network engineering experience, including in classified environments.
• Working knowledge of routing, switching, and network security fundamentals.
• Familiarity with ICD 705 physical security standards for SCIF design and accreditation.
• Familiarity with RMF per NIST SP 800-37 and NIST SP 800-53 for system security authorization.
• US citizenship and ability to obtain security clearance.

Responsibilities

• Design, implement, configure, test, maintain, and sustain enterprise network infrastructure and services across all sites.
• Develop logical and physical network designs based on performance, availability, security, and operational requirements.
• Engineer resilient connectivity across sites, datacenters, cloud, wide-area networks, and other distributed environments.
• Apply sound principles for addressing segmentation, routing, switching, traffic management, and access control.
• Monitor network health, capacity, latency, availability, and utilization.
• Troubleshoot complex network issues using structured analysis, packet-level inspection, telemetry, logs, and performance data.
• Establish redundancy, failover, fault isolation, and recovery mechanisms.
• Integrate network security controls consistent with zero-trust and defense-in-depth principles.
• Develop repeatable configurations, validation procedures, automation, and infrastructure-as-code practices.
• Maintain accurate diagrams, configurations, interface definitions, operating procedures, and change records.
• Participate in change management, incident response, root-cause analysis, and corrective-action planning.
• Collaborate with systems, network, cybersecurity, and operations teams.
• Evaluate technologies based on standards compliance, interoperability, lifecycle cost, supportability, and mission suitability.
• Design and implement network automation that standardizes configuration, testing, deployment, monitoring, and compliance while reducing human error and accelerating the delivery of reliable network services.
• Support design and integration of VTC and conference room AV capability across all program sites, including classified and unclassified variants.
• Support NOC/SOC functions, including monitoring tools, coverage models, and 24x7 support where required.

Skills

Network engineering

Routing/switching

Security principles

Zero-trust

Automation

Infrastructure as code

Troubleshooting

Documentation

Education

Bachelor's degree in a related field

CCNA

CCNP

Security+

RMF/NIST familiarity

Job description

LMI Government Consulting is seeking a skilled Network Engineer to design, build, maintain, and sustain classified network infrastructure supporting enterprise IT operations across multiple government sites. This position requires work with TS/SCI users and cross-functional teams to ensure reliable, secure connectivity.

Responsibilities include designing networks, implementing automation, maintaining diagrams, and supporting NOC/SOC activities, with travel up to 50% for program locations.