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Sr. Tier II Network Technician

LeidosAlice Springs, Northern Territory🇦🇺AustraliaPosted 14 Jul 2026

Quick Overview

Work Type
Hybrid
Schedule
Full Time
Level
Mid Senior

Job Description

Description

The Digital Modernization Sector at Leidos is seeking a Tier II Network Technician to support various WAN and LAN networks. Will provide incident resolution, routing changes, firewall changes; act as subject matter expert in WAN and LAN technologies; support intra- and inter net and other data communications systems or segments of networked system.

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

  • The Tier 2 Nework Technician will support the installation and maintenance of the client LAN/WAN devices.
  • Respond to and resolve incident tickets
  • Draft and implement standard network change requests
  • Provide support to Tier III network engineers for incident management and projects (site surveys, Technical Exchange Meetings (TEMs), and 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.
  • Configure and troubleshoot layer 2 switching (Virtual Local Area Networks (VLANs), Port Security, and Thin Configurations)
  • Perform COMSEC custodian duties, ensuring the proper handling, storage, and safeguarding of cryptographic materials in compliance with U.S. Government Polices.
  • Maintain accountability and inventory control of COMSEC equipment, keying material, and related documentation.
  • Support the installation, configuration, and troubleshooting of encryption devices, including TACLANEs and other secure communication equipment.
  • Support network security operations, ensuring COMSEC integration aligns with overall cybersecurity requirements.

Requirements

  • TS SCI with Poly
  • Candidate must have 16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years, master's and 10 years, bachelor's and 12 years, associates and 14 years or HS diploma and 16 years.
  • Compliance with Department of Defense (DoD) 8570 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

Commitment to Non Discrimination

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.

Skills

Fiber
Encryption
TCP/IP
Compliance
Confluence
Inventory Control
ServiceNow
iOS

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