Sr. Tier II Network Technician

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 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: July 2, 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 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $92,300.00 - $166,850.00 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. Leidos 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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit Pay and Benefits 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. 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 View email address on click.appcast.io. 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.