Senior Network Engineer - DoD Secure Cloud & WAN (TS/SCI)

Leidos; Virginia (MN); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos’ Digital Modernization group is seeking a Senior Network Engineer to design, migrate, implement, enhance, optimize, and maintain infrastructure in support of the CESO program. Arlington, VA on-site with occasional travel; U.S.

citizenship with an active TS/SCI clearance and the ability to obtain a CI Poly is required. The role involves network integration across systems, planning, problem resolution, and collaboration with customers and partners to advance secure cloud/onsite networks and

Qualifications

• BS degree or higher in a technical discipline.
• Active TS/SCI with CI Poly eligibility is required.
• IAT Level II Baseline Certification.
• Ability to explain complex topics to non‑technical audiences.
• Excellent written and verbal communication skills.
• Deep technical depth in WAN/LAN/VPN and network security.

Responsibilities

• Provide network integration and consolidation across multiple environments.
• Prepare technical implementation plans with milestones and timelines.
• Resolve hardware/software installation and upgrade issues.
• Interface with customers, vendors and staff to analyze requirements.
• Develop engineering standards, SOPs and leadership briefings.

Skills

Network design

Communication

Problem solving

Independent work

Education

BS degree in a technical field

Active TS/SCI with CI Poly eligibility

ITIL Foundation

IAT Level II Baseline Certification

Master’s degree (preferred)

Tools

Cisco switches/routers

S2S connections

DMVPNs

BGP

Palo Alto firewalls

AWS networking (VPC, Route 53, AWS Firewall)

Job description

Leidos’ Digital Modernization group is seeking a Senior Network Engineer to design, migrate, implement, enhance, optimize, and maintain infrastructure in support of the CESO program. Arlington, VA on-site with occasional travel; U.S.

citizenship with an active TS/SCI clearance and the ability to obtain a CI Poly is required. The role involves network integration across systems, planning, problem resolution, and collaboration with customers and partners to advance secure cloud/onsite networks and