Senior Tier III O&M Engineer – WAN/LAN Expert

Leidos LLC; Yigo Municipality (GU); On-site; USD 92,000 - 167,000; Full time

Benefits offered by this job

Health and Wellness programs

Income Protection

Paid Leave

Retirement Plan

Job summary

Leidos is seeking a Tier III O&M engineer to support WAN and LAN networks, including incident resolution, routing changes, and firewall updates. You will act as a subject matter expert in WAN/LAN technologies and support data communications systems across sites.

The role covers operations and maintenance, monitoring performance, configuring hardware/software, and coordinating with implementation teams to optimize topology and site configurations. After-hours support may be required.

Qualifications

• Must comply with DoD 8140 IAT Level 2.
• Experience configuring boundary protection tech (Palo Alto, Cisco ASA, Forcepoint).
• Experience with Juniper/Cisco routers and switches.
• Knowledge of OSPF, BGP, VPNs, VRFs, MPLS.
• Understanding of routing, switching, IP, NAT, and security tech.
• Ability to read schematics and docs for maintenance.
• Experience with Service Now or similar ITSM tools.
• Strong verbal and written communication; MS Office proficiency.

Responsibilities

• Support O&M activities and administer LAN/WAN networks (OSPF, BGP, VRFs, VLANs, VRRP, MPLS).
• Monitor performance; configure hardware/software and OS components.
• Assess upgrades for network impact and advise on best technical approaches.
• Perform Tier 3 troubleshooting and problem resolution; develop procedures.
• Provide fault and performance management; respond to incidents after hours.

Skills

IAT Level 2

Palo Alto

Cisco ASA

Forcepoint

Juniper routers

Cisco switches

OSPF

BGP

VPNs

VRFs

MPLS

Boundary protection

Routing

NAT

ServiceNow

MS Office

Tools

ServiceNow

MS Office

Job description

Leidos is seeking a Tier III O&M engineer to support WAN and LAN networks, including incident resolution, routing changes, and firewall updates. You will act as a subject matter expert in WAN/LAN technologies and support data communications systems across sites.

The role covers operations and maintenance, monitoring performance, configuring hardware/software, and coordinating with implementation teams to optimize topology and site configurations. After-hours support may be required.