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Sr. Tier III O&M Engineer - Careers at Leidos

Leidos

Sr. Tier III O&M Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Sr. Tier III O&M Engineer in Alice Springs

The Digital Modernization Sector at Leidos seeks a Sr. Tier III Operations & Maintenance Engineer to deliver elite support for WAN and LAN networks in a high-stakes defense environment. If you thrive on Tier III troubleshooting, routing mastery, and firewall wizardry, this role in Alice Springs, Northern Territory, Australia, demands your expertise. Outthink, outbuild, and outpace the status quo—Leidos isn't for the faint-hearted.

Core Responsibilities

  • Administer advanced networks: OSPF, BGP, VRFs, VLANs, VRRP, MPLS.
  • Monitor performance, configure hardware/software, and execute Tier III resolutions.
  • Optimize topologies, analyze traffic, and recommend component changes.
  • Fault isolation, reporting via ServiceNow, and coordination with teams.
  • Ensure compliance with open systems standards; handle COMSEC and after-hours incidents.

Strict Qualifications

  • TS/SCI with Polygraph—non-negotiable.
  • 16+ years experience (HS+16, Bach+12, etc.); DoD 8570 IAT Level II.
  • Proven hands-on with Palo Alto, Cisco ASA/routers/switches, Juniper, BGP/OSPF/VPN.
  • Boundary protection best practices, ruleset engineering, schematic proficiency.

Why Leidos?

Work on mission-critical U.S. defense networks Down Under. Competitive AUD 180K-250K salary, full benefits, relocation support. Superior communicators with MS Office/Visio skills only. Ready to disrupt? Apply now.

Locations

  • Alice Springs, Northern Territory, Australia

Salary

Estimated Salary Rangehigh confidence

180,000 - 250,000 AUD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • OSPFintermediate
  • BGPintermediate
  • VRFintermediate
  • VLANintermediate
  • VRRPintermediate
  • MPLSintermediate
  • Palo Alto Firewallsintermediate
  • Cisco ASAintermediate
  • Forcepoint Appliancesintermediate
  • Juniper Routers/Switchesintermediate
  • Cisco Routers/Switchesintermediate
  • VPNintermediate
  • IP Subnettingintermediate
  • NATintermediate
  • ServiceNowintermediate
  • MS Office Suiteintermediate
  • Visiointermediate

Required Qualifications

  • TS/SCI with Polygraph clearance (experience)
  • 16+ years experience (equiv. to HS+16, Assoc+14, Bach+12, Mast+10, Doct+8) (experience)
  • DoD 8570 IAT Level II compliant (experience)
  • Boundary protection configuration/troubleshooting (Palo Alto, Cisco ASA, Forcepoint) (experience)
  • Juniper/Cisco router/switch expertise (experience)
  • Routing/switching/security technologies mastery (experience)
  • Ruleset engineering for connectivity (experience)
  • Schematic diagram development (experience)
  • Superior communication skills (experience)

Responsibilities

  • Administer LAN/WAN networks (OSPF, BGP, VRFs, VLANs, VRRP, MPLS)
  • Monitor system/network performance and resolve Tier III incidents
  • Configure/test hardware, networking/OS software
  • Assess user upgrade requests and recommend optimizations
  • Perform fault management, troubleshooting, and reporting
  • Analyze traffic/throughput and optimize topologies
  • Coordinate with config management/implementation teams
  • Maintain OS, software, and ensure open systems compliance
  • Handle up to 10% COMSEC duties and after-hours on-call

Benefits

  • general: Competitive salary and performance bonuses
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) with generous company match
  • general: Paid time off and federal holidays
  • general: Professional development and certification reimbursement
  • general: Relocation assistance for Alice Springs
  • general: Mission-critical work environment with cutting-edge tech

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Jobs in Alice Springs Northern Territory AustraliaLeidos CareersDefense Network EngineeringAustralia IT Security JobsEngineeringInformation TechnologySecurity

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Leidos logo

Sr. Tier III O&M Engineer - Careers at Leidos

Leidos

Sr. Tier III O&M Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Sr. Tier III O&M Engineer in Alice Springs

The Digital Modernization Sector at Leidos seeks a Sr. Tier III Operations & Maintenance Engineer to deliver elite support for WAN and LAN networks in a high-stakes defense environment. If you thrive on Tier III troubleshooting, routing mastery, and firewall wizardry, this role in Alice Springs, Northern Territory, Australia, demands your expertise. Outthink, outbuild, and outpace the status quo—Leidos isn't for the faint-hearted.

Core Responsibilities

  • Administer advanced networks: OSPF, BGP, VRFs, VLANs, VRRP, MPLS.
  • Monitor performance, configure hardware/software, and execute Tier III resolutions.
  • Optimize topologies, analyze traffic, and recommend component changes.
  • Fault isolation, reporting via ServiceNow, and coordination with teams.
  • Ensure compliance with open systems standards; handle COMSEC and after-hours incidents.

Strict Qualifications

  • TS/SCI with Polygraph—non-negotiable.
  • 16+ years experience (HS+16, Bach+12, etc.); DoD 8570 IAT Level II.
  • Proven hands-on with Palo Alto, Cisco ASA/routers/switches, Juniper, BGP/OSPF/VPN.
  • Boundary protection best practices, ruleset engineering, schematic proficiency.

Why Leidos?

Work on mission-critical U.S. defense networks Down Under. Competitive AUD 180K-250K salary, full benefits, relocation support. Superior communicators with MS Office/Visio skills only. Ready to disrupt? Apply now.

Locations

  • Alice Springs, Northern Territory, Australia

Salary

Estimated Salary Rangehigh confidence

180,000 - 250,000 AUD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • OSPFintermediate
  • BGPintermediate
  • VRFintermediate
  • VLANintermediate
  • VRRPintermediate
  • MPLSintermediate
  • Palo Alto Firewallsintermediate
  • Cisco ASAintermediate
  • Forcepoint Appliancesintermediate
  • Juniper Routers/Switchesintermediate
  • Cisco Routers/Switchesintermediate
  • VPNintermediate
  • IP Subnettingintermediate
  • NATintermediate
  • ServiceNowintermediate
  • MS Office Suiteintermediate
  • Visiointermediate

Required Qualifications

  • TS/SCI with Polygraph clearance (experience)
  • 16+ years experience (equiv. to HS+16, Assoc+14, Bach+12, Mast+10, Doct+8) (experience)
  • DoD 8570 IAT Level II compliant (experience)
  • Boundary protection configuration/troubleshooting (Palo Alto, Cisco ASA, Forcepoint) (experience)
  • Juniper/Cisco router/switch expertise (experience)
  • Routing/switching/security technologies mastery (experience)
  • Ruleset engineering for connectivity (experience)
  • Schematic diagram development (experience)
  • Superior communication skills (experience)

Responsibilities

  • Administer LAN/WAN networks (OSPF, BGP, VRFs, VLANs, VRRP, MPLS)
  • Monitor system/network performance and resolve Tier III incidents
  • Configure/test hardware, networking/OS software
  • Assess user upgrade requests and recommend optimizations
  • Perform fault management, troubleshooting, and reporting
  • Analyze traffic/throughput and optimize topologies
  • Coordinate with config management/implementation teams
  • Maintain OS, software, and ensure open systems compliance
  • Handle up to 10% COMSEC duties and after-hours on-call

Benefits

  • general: Competitive salary and performance bonuses
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) with generous company match
  • general: Paid time off and federal holidays
  • general: Professional development and certification reimbursement
  • general: Relocation assistance for Alice Springs
  • general: Mission-critical work environment with cutting-edge tech

Target Your Resume for "Sr. Tier III O&M Engineer - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Sr. Tier III O&M Engineer - Careers at Leidos. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Sr. Tier III O&M Engineer - Careers at Leidos" , Leidos

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Jobs in Alice Springs Northern Territory AustraliaLeidos CareersDefense Network EngineeringAustralia IT Security JobsEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Sr. Tier III O&M Engineer - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.