Tier II Network Technician

Leidos Inc; El Segundo (CA); On-site; USD 73,450 - 132,775; Full time

Job summary

Leidos is seeking a Tier II Network Technician to support customer data communications systems, including design, testing, and upgrades. You will install and maintain LAN/WAN devices, respond to incidents, perform changes, and assist Tier III engineers while maintaining accurate asset records.

Travel up to 20% is expected and DoD 8140 IAT Level 2 clearance is required; flexibility in hours; equipment upgrades and topology documentation are part of the role.

Qualifications

• Active TS/SCI with poly and ability to obtain/maintain security clearance.
• 10+ years of combined work history and education in network engineering.
• DoD 8140 IAT Level 2 certification or higher.
• Availability to travel up to 20% and work flexible hours.

Responsibilities

• Support installation and maintenance of client LAN/WAN devices.
• Respond to incidents, troubleshoot, and communicate with the team.
• Complete tasks within SLOs/SLAs.
• Draft and implement standard network change requests.
• Provide support to Tier III engineers for incidents and projects.
• Update topology drawings and maintain asset records.
• Coordinate network operations, maintenance, repairs or upgrades.
• Perform IOS upgrades on Cisco/Juniper/Fo undry devices.
• Assist with Visio network diagrams and use ServiceNow/Confluence.

Skills

Troubleshooting

Incident response

LAN/WAN installation

Network optimization

Cisco/Juniper knowledge

Layer 2 switching

Layer 3 routing (OSPF/BGP)

IOS upgrades

Visio

ServiceNow

Confluence

COMSEC awareness

Education

Active TS/SCI with poly

DoD 8140 IAT Level 2

10+ years combined work history and education

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

Minimum Requirements

• An active TS/SCI with 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.
• Hands on experience with Cisco and/or Juniper networks, routers, switches
• Hands on experience configuring/troubleshooting switches/routers, MAC addresses, VLANs, port security, applying thin and thick configs
• Experience with MLPS

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 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 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

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.

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.

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.

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.