Senior Network Infrastructure Specialist

SAIC; Scott Air Force Base (IL); On-site; USD 80,000 - 120,000; Full time

Job summary

SAIC at Scott AFB, IL seeks a Senior Network Infrastructure Specialist to support enterprise DoD operations with secure, resilient network services and global WAN management. The role requires independent technical leadership and oversight of junior staff to deliver complex tasks across transport mediums.

The successful candidate will lead design efforts, guide technology purchases, and ensure compliant, reliable network performance with strong routing, IPv6, VPN, cryptographic maintenance, and

Qualifications

• BA/BS degree with 4+ years in network engineering or infra operations.
• Active DoD Secret clearance; ability to obtain TS/SCI.
• IAT Level II certification (Security+, CCNA-Security, CySA+, etc.).
• At least one Computing Environment certification (Cisco, Splunk, McAfee, etc.).
• Experience installing DoD networks in security-compliant environments.
• Strong routing (OSPF, BGP), IPv6, VPN, and global WAN experience.
• Proficient with Word, PowerPoint, Visio, and Excel.
• Experience documenting technical systems clearly.
• Excellent communication with varied technical backgrounds.

Responsibilities

• Develop strategies and design network infrastructure to meet mission objectives.
• Advise leadership on technology purchases involving data storage, processing, and network access.
• Assess feasibility of future projects and provide expert recommendations.
• Provide deep expertise in routing protocols (OSPF, BGP), IPv6, VPN, and global WANs.
• Support wireless, network connectivity, and related services securely.
• Coordinate and execute cryptographic circuit maintenance.
• Install and maintain transport media (fiber, copper, wireless) with access drops.
• Perform planned upgrades and maintenance; minimize disruption.
• Provide DNS/SMTP support and IP address management; configure VLANs.
• Collect, analyze, and report network availability metrics.
• Maintain network diagrams, rack elevations, and device configurations.
• Respond to incidents, provide after-action reporting, and assist service recovery.
• Adhere to processes to ensure SLA compliance.

Skills

BA/BS degree

DoD Secret clearance

IAT Level II cert

Computing Environment cert

OSPF/BGP routing

IPv6

VPN technologies

DoD network experience

Documentation skills

MS Office

Education

BA/BS degree

Tools

Cisco cert

Splunk cert

McAfee cert

Job description

Minimum Clearance Required Secret

Job ID 2615305

Location Scott Afb, IL, US

Date Posted 2026-08-05

Category Information Technology

Subcategory Network Engineer

Schedule Full-Time

Shift Day Job

Travel No

Clearance Level Must Be Able to Obtain None

Potential for Remote Work ORA_ON_SITE

SAIC is seeking a Senior Network Infrastructure Specialist to support high-visibility and mission-critical network operations for the U.S. Transportation Command (USTRANSCOM). This role supports enterprise-level infrastructure within a global DoD environment and requires independent technical leadership, infrastructure design expertise, and oversight of junior staff. The successful candidate will operate with minimal supervision, lead complex tasks, and ensure secure, reliable, and resilient network operations across multiple transport mediums and global WAN environments.

Key Responsibilities

• Develop strategies and design network infrastructure to meet organizational and mission objectives.
• Advise leadership on technology purchases involving data storage, processing, network access, and application development.
• Assess feasibility of future projects and provide expert recommendations.
• Provide deep technical expertise in routing protocols (OSPF, BGP), IPv6, VPN technologies, and global WAN backbone operations.
• Support secure and non-secure wireless communication infrastructure, network connectivity, and associated services.
• Coordinate and execute cryptographic circuit maintenance.
• Install and maintain the network transport medium (fiber, copper, wireless), including user access drops.
• Perform planned upgrades and maintenance while minimizing operational disruption.
• Provide DNS and SMTP support, IP address management, and VLAN configuration.
• Collect, analyze, and report network availability metrics on a recurring and ad-oc basis.
• Maintain comprehensive technical documentation including, physical and logical network architecture diagrams, equipment room layouts with rack elevations Inside/outside plant specifications, & hardware configurations.
• Respond to network incidents, provide after-action reporting, and support service recovery.
• Adhere to established processes to ensure compliance with service level agreements.

Qualifications

Required Qualifications

• BA/BS and 4+ years of experience in network engineering or infrastructure operations.
• Active DoD Secret clearance with ability to obtain TS/SCI.
• IAT Level II certification, such as Security+, CCNA-Security, CySA+, GICSP, GSEC, CND, or SSCP.
• At least one Computing Environment certification (Cisco, Splunk, McAfee, etc.).
• Experience installing and maintaining DoD networks in compliance with security requirements.
• Strong expertise in routing protocols (OSPF, BGP), IPv6, VPN, and global WAN environments.
• Proficiency with Microsoft Office tools including Word, PowerPoint, Visio, and Excel.
• Demonstrated experience producing accurate and comprehensive technical documentation.
• Strong communication skills for interacting with personnel of varying technical backgrounds.

Target salary range $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.