Defence jobs for cloud, network and IT engineers in Australia

51 open roles for cloud, network and IT engineers at 13 defence and security companies in Australia. 20 of them are open to candidates of any nationality; the rest ask for citizenship or a government security check. 2 mention relocation support.

Rebuilt 27 Oct 2026
open technical roles
51
companies
13
open to any nationality
39%
estimated median pay
$118k

Companies hiring

Newest roles

BAE Systems

baesystems.com
baesystems.com • HQ: London, United Kingdom • Naval Systems • Combat Aircraft • Defense Manufacturing • 1001-5000 employees • Est. 1999 • Trust B • Hiring 290, 69 new
HQ: London, United Kingdom • Naval Systems • Combat Aircraft • Defense Manufacturing • 1001-5000 employees • Est. 1999 • Trust B • Hiring 290, 69 new
BAE Systems is a British multinational defence, security and aerospace company headquartered in London, building combat aircraft, warships, submarines, land vehicles, electronic systems and cyber and intelligence products. Formed in 1999 from the merger of British Aerospace and Marconi Electronic Systems, it is listed on the London Stock Exchange and has major operations in the UK, the US, Australia, Saudi Arabia and Qatar, and works on the Edgewing combat air programme. It hires hardware, software, structures, flight systems and spacecraft engineers, test and manufacturing specialists, project managers, supply chain and procurement staff, and graduates.
No named decision-maker yet.
No careers mailbox known
Verified live · 3 hours ago 1 day ago Likely open · 63%

Senior Linux Engineer

≈ $60k – $168k per year (Estimated) • Senior • 5+ years exp • Hybrid (Melbourne, Australia) • Bachelor's Degree • Citizenship or vetting required • Senior
Bash
PowerShell
Python
DevOps
SLURM
Ubuntu
HPC
DNS
Ansible
Linux
Azure
+2
Apply

Leidos

leidos.com
leidos.com • HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1540, 138 new
HQ: Reston, United States • C4ISR • National Security • Engineering Services • Defense Manufacturing • Systems Integrators • 5000+ employees • Est. 2013 • IT services • Trust B • Hiring 1540, 138 new
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.
Chris Cage · Chief Financial Officer · decision-maker
Thomas Bell · Chairman & Chief Executive Officer · decision-maker
Roger Krone · former Chief Executive Officer
Careers mailbox is known
Verified live · 17 min ago 6 days ago Likely open · 63%

Site Reliability Engineering and Platform Lead

≈ $84k – $233k per year (Estimated) • Lead • In office (Melbourne, Australia) • Full-Time • Nationals only • Staff
OpenShift
SRE
Self-Healing
SLI/SLO/SLA
Platform Engineering
Incident Management
Kubernetes
CI/CD
Management
ITIL
+1
Apply
Verified live · 17 min ago 8 days ago Likely open · 62%

Network Administrator

In office (Bendigo, Australia) • Full-Time • Nationals only • Citizenship or vetting required
DHCP
BGP
OSPF
TCP/IP
DNS
Cybersecurity
Wireshark
Apply

Northrop Grumman

northropgrumman.com
northropgrumman.com • HQ: Falls Church, United States • Space Defense • C4ISR • Satellite Manufacturing • Aerospace Manufacturing • Defense Manufacturing • 5000+ employees • Est. 1994 • Trust B • Hiring 2299, 226 new
HQ: Falls Church, United States • Space Defense • C4ISR • Satellite Manufacturing • Aerospace Manufacturing • Defense Manufacturing • 5000+ employees • Est. 1994 • Trust B • Hiring 2299, 226 new
Northrop Grumman is an American defence contractor whose oldest predecessor was founded in 1939, and which took its present form through the 1994 combination of Northrop and Grumman. It builds strategic systems including the B-21 Raider bomber and the Sentinel intercontinental ballistic missile programme, military and civil space systems, radars and electronic warfare equipment, autonomous aircraft, and mission systems and software for the United States armed forces and allied governments. Headquartered in Falls Church, Virginia and listed on the New York Stock Exchange, it earns the large majority of its revenue from the American government and employs close to one hundred thousand people.
Kenneth Crews · Chief Financial Officer · decision-maker
Kathy Warden · Chair, Chief Executive Officer and President · decision-maker
Jack Northrop · Founder · founder
No careers mailbox known
Verified live · 22 min ago 8 days ago Likely open · 58%

Hardware Systems Administrator

In office (Exmouth, Australia) • Relocation • Full-Time • Secret • Shift work • Citizenship or vetting required
Linux
Apply

Rohde & Schwarz

rohde-schwarz.com
rohde-schwarz.com • HQ: Munich, Germany • Information Security • Broadcasting • Military Communication • Test & Measurement Instruments • 201-500 employees • Est. 1933 • Hiring 143, 7 new
HQ: Munich, Germany • Information Security • Broadcasting • Military Communication • Test & Measurement Instruments • 201-500 employees • Est. 1933 • Hiring 143, 7 new
Rohde & Schwarz is a Munich technology company founded in 1933 that makes test and measurement instruments. Its equipment certifies mobile devices and network equipment worldwide, and it also builds broadcast transmitters, secure communications and cybersecurity products. The company remains family owned and employs more than fourteen thousand people.
No named decision-maker yet.
Careers mailbox is known
Verified live · 2 hours ago 11 days ago Fading · 43%

Senior IT Systems Administrator

≈ $47k – $124k per year (Estimated) • Senior • In office (Brisbane, Australia) • Citizenship or vetting required • Senior
Apply

Shield AI

shield.ai
shield.ai • HQ: San Diego, United States • Defense Manufacturing • Drone AI • Defense AI • Military Drones • 1001-5000 employees • Est. 2015 • Trust B • Hiring 632, 38 new
HQ: San Diego, United States • Defense Manufacturing • Drone AI • Defense AI • Military Drones • 1001-5000 employees • Est. 2015 • Trust B • Hiring 632, 38 new
Shield AI is an American defence technology company founded in 2015 that builds autonomy software and uncrewed aircraft for military missions. Its Hivemind autonomy stack lets aircraft fly, navigate and complete objectives without GPS, a remote pilot or a communications link, which matters in contested environments where those links are jammed. Headquartered in San Diego, California, the company fields the V-BAT vertical take-off aircraft with United States and allied forces, licenses Hivemind to other manufacturers and is developing the X-BAT jet for high-end missions.
Andrew Reiter · Co-Founder · decision-maker
Ryan Tseng · Co-Founder · decision-maker
Brandon Tseng · Co-Founder & President · decision-maker
Gary Steele · Executive Officer, Director · decision-maker
Careers mailbox is known
Verified live · 4 hours ago 20 days ago Likely open · 63%

Staff IT Systems Engineer, ICT Lead (R5660)

≈ $97k – $271k per year (Estimated) • Lead • In office (Melbourne, Australia) • Staff
Bash
PowerShell
Python
AI/ML
AI Agents
DevOps
DHCP
VPN
DNS
IAM
Windows
Linux
Azure
AWS
Cybersecurity
Microsoft Entra ID
Active Directory
Management
ITIL
+7
Apply
Verified live · 4 hours ago 1 month ago Fading · 36%

Staff C++ Build and Release Engineer (R5673)

≈ $121k – $291k per year (Estimated) • Staff+ • Hybrid (Melbourne, Australia) • PhD • Staff
C++
Python
C++
Conan
CMake
DevOps
Podman
JFrog Artifactory
Unix
Docker
Linux
CI/CD
+2
Apply

RTX

rtx.com
rtx.com • HQ: Arlington, United States • Avionics & Flight Control • Air Defense • Missiles • Defense Manufacturing • Aerospace Manufacturing • 5000+ employees • Est. 2020 • Trust B • Hiring 3169, 382 new
HQ: Arlington, United States • Avionics & Flight Control • Air Defense • Missiles • Defense Manufacturing • Aerospace Manufacturing • 5000+ employees • Est. 2020 • Trust B • Hiring 3169, 382 new
RTX is an American aerospace and defense company formed in 2020 by the merger of United Technologies and Raytheon. It operates through three businesses: Collins Aerospace, which makes avionics, aircraft interiors and aerostructures, Pratt & Whitney, which builds commercial and military jet engines, and Raytheon, which produces missiles, air defense systems such as Patriot, radars and sensors. Its customers include airlines, aircraft manufacturers, the United States Department of Defense and allied governments. The company is headquartered in Arlington, Virginia, United States.
No named decision-maker yet.
Careers mailbox is known
Verified live · 4 hours ago 20 days ago Fading · 39%

ICT Infrastructure Engineer

In office (Australia) • Bachelor's Degree • Full-Time
ITIL
MedTech
Verification & Validation
Apply

Skills these roles ask for

Linux 26Azure 18VMWare 17Ansible 16Python 15Windows 14AWS 13Kubernetes 13DNS 13CI/CD 13PowerShell 12Terraform 12Docker 10Active Directory 10ITIL 10Configuration Management 9

Where the roles are

Melbourne 24Canberra 19Wollongong 5Bendigo 5Adelaide 5Alice Springs 4Sydney 4Williamtown 2Perth 1Brisbane 1

Questions

Can a foreigner apply for these roles?

20 of the 51 roles here state no citizenship or security-check demand. A role that does - a citizenship, a national security vetting, a US clearance - says so in its advert, and the card marks it.

Which companies hire most?

Leidos (29), Lockheed Martin (5), Shield AI (3), BAE Systems (3), Anduril Industries (2).

Which employers count as defence companies?

Companies whose main business is defence and security - prime contractors, defence electronics, naval, land and air systems, defence software and the defence tech startups - and the defence divisions of diversified groups. Companies of Russia, Belarus, China, Hong Kong, Iran and North Korea and companies under sanctions are left out.

How fresh is this?

Every role is re-checked on the employer's own careers board at least every 48 hours, and the page is rebuilt every night.

Source: 51 live postings on employers' careers boardsUpdated 27 Oct 2026MethodologyJSONCC BY-SA 4.0