Tier II Network Technician

Socket.dev; Chantilly (VA); On-site; USD 59,000 - 107,000; Full time

Job summary

Leidos seeks a Tier II Network Technician to support client LAN/WAN, design specs, testing, and upgrades for network solutions. You will respond to incidents, draft change requests, and assist Tier III engineers with surveys and installs.

Core duties include asset management, topology updates, and coordinating upgrades. Requires TS/SCI CI, 6 years’ experience, and familiarity with Cisco/Juniper OS, VLANs, and Layer 3 protocols; up to 25% travel.

Qualifications

• Top Secret/Sensitive Compartmented Information (TS/SCI CI) required.
• 6 years of combined work history and education experience.
• IAT Level 2 information assurance certification required.
• Strong routing, switching, and TCP/IP knowledge.
• Familiar with Cisco/Juniper RMA processes.

Responsibilities

• Support installation and maintenance of client LAN/WAN devices.
• Respond to incidents, troubleshoot, and communicate with the team.
• Draft and implement standard network change requests.
• Assist Tier III engineers with site surveys and equipment installs.
• Maintain topology drawings and asset records; conduct inventory.
• Coordinate network operations, maintenance, repairs or upgrades.
• Perform IOS upgrades for Cisco/Juniper/Fonundry OS and manage VLANs.

Skills

Troubleshooting

Network concepts

Layer 3 protocols

Documentation

Communication

Education

DoD 8140 IAT Level 2

Tools

Cisco IOS

Juniper JUNOS

Brocade OS

Foundry OS

Visio

ServiceNow

Confluence

Job description

The Digital Modernization Sector at Leidos has an opening for a Tier II Network Technician to support the customer’s computer data communications systems, in providing design specifications, testing and inspections for computer networks; plan and implementing upgrades; as well as, analyzing and organizing corresponding hardware and software combined solutions through network modeling.

The job duties of the Tier II Network Technician are as follows:

• The Tier II network field technician will support the installation and maintenance of the client LAN/WAN devices.
• Respond to and resolve incidents, demonstrate troubleshooting skills and communicate with the team.
• Complete assigned tasks within Service Level Objectives/Agreements (SLOs/SLAs).
• Draft and implement standard network change requests.
• Provide support to Tier III network engineers for incident management and projects (site surveys, TEMS, coordinate and install new equipment).
• Perform configuration management functions such as update topology drawings, ensure asset management records are accurate, and conduct inventory.
• Coordinate network operations, maintenance, repairs, or upgrades. (Knowledge of CISCO/Juniper RMA process).
• Layer 1 network experience (CAT5/6, SM/MM Fiber, Serial cables, SFP).
• Layer 2 network experience (ability to configure/troubleshoot switches/routers, MAC addresses, VLANs, port security, applying thin and thick configs.
• Layer 3 network experience (subnetting, familiar with protocols such as OSPF, BGP, HSRP, MPLS, LSP, GRE).
• Configure and troubleshoot layer 2 switching (VLAN’s, Port Security, Thin Configs).
• Perform IOS upgrades for Cisco, Juniper, Brocade and Foundry OS.
• Experience with Visio.
• Familiar with ServiceNow and Confluence.
• May have up to 10% COMSEC responsibilities based on site and team needs.

Basic Qualifications

• Required Clearance: TS SCI CI
• Candidate must have 6 years of experience that can be a combination of work history and education. This equates to a Doctorate and 0 years, master’s and 0 years, bachelor’s and 2 years, associates and 4 years or HS diploma and 6 years.
• Compliance with Department of Defense (DoD) 8140 Information Assurance Technical (IAT) Level 2.
• Working knowledge of basic routing fundamentals
• Working knowledge of layer 2 switching concepts
• Knowledge of CISCO/Juniper Return Material Authorization (RMA) processes
• Layer 1 and Layer 2 network experience (CAT5, Single Mode (SM)/Multimode (MM) Fiber, Serial cables, Small Form-factor Pluggable (SFP)
• Knowledge of Transmission Control Protocol/Internet Protocol (TCP/IP) and Open Systems Interconnection (OSI) models
• Knowledge of Cisco Internetworking Operating System (IOS), Juniper JUNOS, and the Brocade and Foundry Operating System (OS)
• Familiarity (doesn’t need to be a SME) with Layer 3 protocols such as Open Shortest Path First (OSPF), Border Gateway Protocol (BGP), Virtual Router Redundancy Protocol (VRRP), Hot Standby Router Protocol (HSRP), Multiprotocol label switching (MPLS), Language Server Protocol (LSP), and Generic Routing Encapsulation (GRE)
• Familiarity with Microsoft Visio, ServiceNow, and Atlassian Confluence
• Working knowledge of Service Now or similar IT Service Management (ITSM) products
• Up to 25% travel

Clearance Required:

• All candidates must possess a TS/SCI CI Poly at time of consideration.

Broadside

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.

Original Posting

August 22, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 5 days with an anticipated close date of no earlier than 5 days after the original posting date as listed above.

Pay Range

Pay Range $59,150.00 - $106,925.00

The Leidos pay range for this job level is a general guideline onlyand 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.