Tier II Network Technician

Leidos; Mississippi; On-site; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking a Tier II Network Technician to support the client's LAN/WAN infrastructure including design specs, testing, and upgrades. The role involves network modeling and coordinating changes across IOS-equipped devices.

The position requires TS/SCI CI Poly clearance, DoD 8140 IAT Level 2, and up to 20% travel. Flex hours and weekend support may be needed. Leidos emphasizes teamwork and independent work in a dynamic environment.

Qualifications

• TS/SCI CI Poly clearance required.
• 10 years of combined work history and education.
• DoD 8140 IAT Level 2.
• Up to 20% travel.
• Flexible hours, including weekend support.
• Ability to work independently and in a team.

Responsibilities

• Support the installation and maintenance of client LAN/WAN devices.
• Respond to incidents, troubleshoot, and communicate with the team.
• Draft and implement standard network change requests.
• Provide support to Tier III network engineers for incidents and projects.
• Update topology drawings and asset management records.
• Coordinate network operations, maintenance, repairs, or upgrades.
• IOS upgrades for Cisco/JUniper/Brocade/Foundry OS.
• Experience with Visio, ServiceNow, and Confluence.
• May have up to 10% COMSEC responsibilities.

Skills

Troubleshooting

Team communication

Independent work

Travel readiness

Incident management

Tools

Cisco networking

Juniper

RMA process

Visio

ServiceNow

Confluence

Job description

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.

Requirements

• Required Clearance: TS/SCI CI Poly
• 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.
• Available to travel up to 20% of the time.
• Available to work flexible hours, to include weekend support.
• Ability to work independently and in a collaborative environment.

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 25, 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 $73,450.00 - $132,775.00

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 at www.leidos.com/careers/pay-benefits.

About 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to U.S. Federal Trade Commission.

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.

Commitment to Non-Discrimination