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# Senior Network Engineer

- **Company:** Leidos, Inc.
- **Location:** Columbia, MD, United States (Remote available)
- **Experience:** Expert
- **Salary:** $116,350 - $210,325
- **Contract:** Permanent contract
- **Skills:** VoIP, Network Analysis, Software Documentation, Signals Intelligence, Complex Networks, Computer Networks, Data Flow Control, Monitoring of Systems, Networking Hardware, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Local Area Networks, Software Architecture, Systems Integration, Wide Area Networks, Diagnostic Tools, Load Balancing, Computer Network Operations, Firewalls (Computer Science)
- **Published:** October 22, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/all/all/f7347e92-ea98-43ce-9a8e-4ab11de7515a

## About the Role

IAT Level I Certification
Computer Network Operations
Virtual Private Networks (VPN)
Network Performance Management
Troubleshooting (Problem Solving)
Internet Protocol Security (IP SEC)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), * Bachelor's degree in a related technical discipline and twelve (12) years of experience providing network engineering support. Candidates without bachelors degrees will require an additional 4 years of related experience

 * Information Assurance Technical (IAT) Level I certification in accordance with DoD 8570.01-M.
 * Demonstrated experience designing, implementing, and maintaining complex network infrastructures.
 * Experience troubleshooting and resolving advanced network performance and integration issues.
 * Active TS/SCI with Polygraph clearance
 * Participate in a rotational on-call schedule (estimated every 4-6 weeks), with flexible team-managed scheduling and guaranteed on-call compensation
 * Provide primarily remote on-call support; occasional on-site response may be required (rare)

## Description

Equities
Scheduling
Operations
Purchasing
Upskilling
Encryption
Scalability
Market Data
End Systems
Cryptography
Test Equipment
Load Balancing
ISO 9000 Series
Traffic Shaping
Ancient History
Diagnostic Tools
Complex Networks
Computer Networks
Analytical Method
Program Management
Telecommunications
Wide Area Networks
Networking Hardware
Local Area Networks
Network Engineering
Time Off Management
Security Engineering
Signals Intelligence
Business Requirements
Software Documentation, Senior Network Engineer provides advanced network engineering support for the design, integration, optimization, and sustainment of complex enterprise and mission networks. This role focuses on enhancing network performance, implementing scalable solutions, and supporting architectural improvements across LAN, CAN, WAN, and telecommunications environments.

The engineer translates mission and business requirements into secure, high-performing network solutions and collaborates with operations personnel, program management, and engineering teams to ensure reliable network performance in DoD/IC environments.

Primary Responsibilities

 * Optimize end-to-end system performance and dataflow through analysis, monitoring tools, and data captures, minimizing latency and maximizing throughput.
 * Design, integrate, configure, deploy, test, maintain, and enhance network devices and infrastructure across LAN, CAN, WAN, and telecommunications systems.
 * Implement network solutions supporting server and mission requirements, including load balancing, VPNs, firewall contexts, traffic shaping, VoIP, GRE, IPSec, IP encryption, MoIP, and NAT.
 * Contribute to the design and improvement of network and mission architecture to support evolving partner and mission requirements.
 * Resolve complex network issues using advanced diagnostic tools such as network analyzers, WAN test equipment, and simulators.
 * Support network operations by maintaining system documentation, diagrams, and accreditation artifacts while ensuring compliance with ISO 9000 and DoD/IC standards.
 * Collaborate with engineering teams to support network equipment, system integrations, and infrastructure changes, including conversions and cutovers.