GNOC Tier II Incident Management Technician

Leidos LLC; Aurora (CO); On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a Government Network Operations Center (GNOC) Tier II Incident Management Technician to support the client’s LAN/WAN data communications and incident response. You will manage network events, assist with configurations, and perform OSI-based troubleshooting across the enterprise.

Responsibilities include incident handling in ServiceNow, VLAN and layer-3 routing configuration, MPLS WAN troubleshooting, and collaboration with vendors to resolve issues.

Qualifications

• TS/SCI with active polygraph clearance
• 10 years of combined work experience/education equivalent
• Compliance with DoD 8140 IAT Level 2
• Coordinate network operations, maintenance, repairs or upgrades
• Professional experience with OSI layers 1, 2 and 3 to troubleshoot faults
• Hands on with Cisco and/or Juniper routers
• Extensive MPLS troubleshooting across the WAN
• Able to work evening shift

Responsibilities

• Support installation and maintenance of client LAN/WAN devices
• Respond to, update, and resolve incident tickets in ServiceNow
• Administer networks including hardware, systems software, and config
• Validate topology drawings and keep asset records accurate
• Troubleshoot OSI layers 1-3 to resolve network faults and performance issues
• Configure/troubleshoot VLANs and layer-3 routing
• Troubleshoot MPLS across the WAN
• Evaluate new network technologies and advise integration
• Ensure hardware and communications plans are adequate
• Develop methodologies for LAN/WAN analysis, testing, and support
• Use Microfocus and Riverbed tools to identify and isolate incidents
• Coordinate with vendors/service providers to resolve incidents
• Diagnose hardware/software problems and coordinate replacements

Skills

OSI model knowledge

Incident management

ServiceNow

Network event troubleshooting

VLANs/LAN/WAN

MPLS troubleshooting

Vendor communication

Education

DoD 8140 IAT Level 2 certification

Tools

Microfocus

Riverbed

Cisco routers

Juniper routers

Job description

Job Overview

The Digital Modernization Sector at Leidos is seeking a Government Network Operations Center (GNOC) Tier II Incident Management Technician to support the computer data communications systems, providing network event management and incident troubleshooting. Technicians provide additional support by ensuring network devices meet baseline configurations, software, and network performance standards. Technicians will make extensive use of Microfocus tools, ServiceNow, and knowledge of the various levels of the Open Systems Interconnection (OSI) model to complete daily network Operations and Maintenance (O&M) tasks.

Job Duties

• Support the installation and maintenance of the client Local Area Network (LAN)/Wide Area Network (WAN) devices.
• Respond to, update, and resolve incident tickets within ServiceNow.
• Administer networks including hardware, systems software, applications software, and all hardware configurations.
• Perform configuration management functions such as validating topology drawings and ensure that asset management records are accurate.
• Leverage knowledge of OSI layers 1, 2 and 3 to troubleshoot various network faults and performance issues.
• Configure and troubleshoot layer two switching (Virtual Local Area Networks (VLANs)).
• Modify and troubleshoot layer three routing across the enterprise network.
• Conduct extensive troubleshooting of Multiprotocol Label Switch (MPLS) across the WAN.
• Participate in evaluation of new network technologies and provide recommendations to the network architecture team regarding the integration of these technologies into the existing network.
• Ensure adequacy of plans for hardware and communications.
• Develop and implement methodologies for analysis, testing, and support of LAN and WAN networks.
• Leverage various network tools such as Microfocus and Riverbed to quickly identify and isolate customer impacting events on the network.
• Communicate and troubleshoot with vendors and other service providers to efficiently resolve incidents.
• Diagnose hardware and software problems and coordinate the replacement of defective components.

Basic Qualifications

• Required Clearance TS/SCI with active polygraph
• Candidate must have 10 years of experience that can be a combination of work history and education. This equates to a Doctorate and 3 years, master’s and 4 years, bachelor’s and 6 years, associates and 8 years or HS diploma and 10 years.
• Compliance with Department of Defense (DoD) 8140 Information Assurance Technical (IAT) Level 2.
• Coordinate network operations, maintenance, repairs or upgrades.
• Professional experience with OSI layers 1, 2 and 3 to troubleshoot various network faults and performance issues.
• Hands on experience with Cisco and/or Juniper routers.
• Extensive experience troubleshooting of Multiprotocol Label Switch (MPLS) across the WAN.
• Must be able to work evening shift.

Company Culture

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.

Pay and Benefits

Pay Range: $73,450.00 - $132,775.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

More details are available here.

Company Overview

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.200000000000,000 for the fiscal year ended January 2, 2026.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law.

Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.