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# Tier III O&M Network Engineer

- **Company:** CareerCircle
- **Location:** Springfield, VA, United States
- **Experience:** Expert
- **Salary:** $116,350.0 - $210,325.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Excel, Application Programming Interfaces (APIs), Computing Platforms, Border Gateway Protocol, Cisco PIX, Cisco Routers, Cloud Computing, Configuration Management, Compilers, Information Systems, Computer Networks, System Configuration, Data Transmissions, Information Leak Prevention, Network Address Translation, Domain Name System (DNS), Monitoring of Systems, Network Topologies, Identity and Access Management, Information Management, Internet Protocol, Internet Security, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Local Area Networks, Network Troubleshooting, Microsoft Office, Network Configuration and Change Management, Network Architecture, Network Connections, Network Monitoring, Open Shortest Path First (OSPF), Microsoft PowerPoint, Cloud Services, Virtual Local Area Networks, Virtual Router Redundancy Protocols, Wide Area Networks, Private Cloud Environment, Network Routing, Cloud Platform System, Computer Network Technologies, IT Architecture, HybridCloud, Firewalls (Computer Science), Juniper, Information Technology, Network Support, Network Server, Cisco, Servicenow
- **Published:** August 26, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/va/arlington/fc44b197-1bea-4d56-8464-c608275e5102

## About the Role

* Active Top Secret clearance with Sensitive Compartmented Information (SCI) eligibility.
 * Minimum of 10 years of experience in network engineering and design.
 * Bachelor's degree in engineering, computer science, or information systems. In lieu of a bachelor's degree, an additional 10 years' experience in IT architecture and engineering for a total of 15 years of experience.
 * Experience installing, configuring, and managing software defined network, identity and access management, mobility, imaging, collaboration capabilities, cloud hosting, and communication services and solutions.
 * Experience engineering, designing, testing, and implementing secure and reliable network connectivity to cloud services (e.g., commercial cloud services providers (CSPs), private cloud, and hybrid cloud).
 * Strong communication skills with excellent verbal and written skills.

Preferred Qualifications.

 * Experience supporting DHS, CISA, or another highly classified Federal environment.
 * Experience with DHS Enterprise Architecture policies, standards, and procedures.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

## Description

Local Area Networks
Network Engineering
Top Secret Clearance
Network Infrastructure
Hybrid Cloud Computing
Enterprise Architecture
Network Troubleshooting
Identity And Access Management
Information Technology Architecture
Certified Information System Auditor (CISA)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance), * Serve as the subject matter expert in the areas of network engineering design, testing, and deployment.

 * Engineer, design, test, and implement an enterprise network infrastructure and technologies
 * Responsible for maintaining the design and integrity of CISA Wide Area Network (WAN), Local Area Network (LAN), Enterprise Network Tools, Domain Name Servers (DNS), Wireless, and Cloud environments.
 * Provide expert technical assistance to team members and Government with high-level system and networking requests and solution identification, Firewall
Equities
Cisco PIX
Compilers
Operations
Data Entry
ServiceNow
Subnetwork
Procurement
Market Data
Communication
Cisco Routers
Microsoft Excel
Network Routing
Ancient History
Microsoft Office
Network Topology
Fault Management
Operating Systems
Computer Networks
Wide Area Networks
Schematic Diagrams
Data Transmissions
Internet Protocols
Local Area Networks
Computing Platforms
Network Engineering
Microsoft PowerPoint
IT Service Management
Information Assurance
Performance Management
Information Technology
Information Management
Technical Communication
Border Gateway Protocol
Communications Security
Configuration Management
Network Address Translation
Juniper Network Technologies
Virtual Private Networks (VPN)
Network Performance Management
Open Shortest Path First (OSPF)
Troubleshooting (Problem Solving)
Virtual Local Area Network (VLAN)
Virtual Router Redundancy Protocols
Application Programming Interface (API)
Cisco Adaptive Security Appliance (ASA)
Network Configuration And Change Management
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance)
+0

Google IT Support
Lead Network Engineer
Leidos

Arlington, VA*On-Site

Equities
Market Data
Communication
Private Cloud
Cloud Hosting
Cloud Services
Ancient History
Computer Science
Wide Area Networks
Information Systems
Local Area Networks
Network Engineering
Top Secret Clearance
Network Infrastructure
Hybrid Cloud Computing
Enterprise Architecture
Network Troubleshooting
Identity And Access Management
Information Technology Architecture
Certified Information System Auditor (CISA)
Top Secret-Sensitive Compartmented Information (TS/SCI Clearance)
+0

Google IT Support
Network Engineer
Leidos

Washington, DC*On-Site

Datadog
Planning
Equities
Leadership
Management
Market Data
Communication
Presentations
Investigation
Change Requests
Network Support
Ancient History
Needs Assessment
Computer Science
Network Topology
Threat Detection
Technical Issues
Security Policies
System Monitoring
Internet Security
Local Area Networks
Network Engineering
Network Architecture
Data Loss Prevention
IT Service Management
Network Infrastructure
Quick Response Manufacturing
+0


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