Network Implementation Engineer — Secure, High-Impact Networking

Leidos Inc; Chantilly (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Leidos is seeking a Network Implementation Engineer to design, test, and upgrade computer networks, ensuring secure configurations and DISA STIG alignment. You will document designs, support migration windows, and provide expert troubleshooting across enterprise networks.

The role emphasizes secure architecture, ATO processes, and collaboration with Operations teams to deliver scalable solutions while maintaining high data integrity and availability.

Qualifications

• TS/SCI clearance with Poly required.
• Total experience must equal 10 years per the qualification chart (Doctorate +3, Masters +4, Bachelors +6, etc.).
• DoD 8140 Information Assurance Technical (IAT) Level 2 compliance.
• Experience in network engineering including Tier III+ network operations and/or design.
• Production network hardware configurations for Cisco, Brocade, and/or Juniper.
• Hands-on experience with routing protocols (OSPF/BGP).
• Hands-on experience with switching and trunking protocols (VLANs, 802.1q, port-channels).

Responsibilities

• Interpret customer requirements and document designs with diagrams, BOMs, cabling sheets, configurations.
• Schedule maintenance windows for migration with minimal data-impact.
• Provide technical expertise to Operations; troubleshoot faults.
• Develop secure network designs aligned with STIGs and obtain ATO for devices/software.
• Supervise (not manage) other network support specialists.
• Develop and improve design products, processes, and systems.
• Escalation point for enterprise outages across multiple teams.

Skills

Network engineering

Routing protocols (OSPF,BGP)

Switching & VLANs

Incident management

Documentation

Tools

Cisco hardware

Brocade hardware

Juniper hardware

Job description

Leidos is seeking a Network Implementation Engineer to design, test, and upgrade computer networks, ensuring secure configurations and DISA STIG alignment. You will document designs, support migration windows, and provide expert troubleshooting across enterprise networks.

The role emphasizes secure architecture, ATO processes, and collaboration with Operations teams to deliver scalable solutions while maintaining high data integrity and availability.