Defence tech jobs in Japan: software, data and engineering roles

69 open technical roles at 10 defence and security companies in Japan: Embedded and hardware. 68 of them are open to candidates of any nationality; the rest ask for citizenship or a government security check.

Rebuilt 1 Nov 2026
open technical roles
69
companies
10
open to any nationality
99%
median stated pay
$37k

Newest roles

disa.mil · HQ: Fort Meade, United States · Military Communication · Digital Government · Hiring 5, 5 new
HQ: Fort Meade, United States · Military Communication · Digital Government · Hiring 5, 5 new
Defense Information Systems Agency is a United States Department of Defense organization that provides information technology and communications support to the military. Its postings cover cybersecurity specialists and IT specialists supporting the mission of US Cyber Command under the Cyber Excepted Service. The agency is headquartered in Fort Meade, Maryland, United States.
No named decision-maker yet.
No careers mailbox known
5 days ago Hiring now · 82%

IT CYBERSECURITY SPECIALIST (SYSANALSIS)

$91k per year · In office (Yokota, Japan) · Full-Time · Nationals only · Citizenship or vetting required
Apply
mhi.com · HQ: Tokyo, Japan · Transportation & Logistics · Supply Chain · Manufacturing · Energy & Utilities · Defense Manufacturing · Industrial Machinery · Est. 1981 · Trust A · Hiring 55, 1 new
HQ: Tokyo, Japan · Transportation & Logistics · Supply Chain · Manufacturing · Energy & Utilities · Defense Manufacturing · Industrial Machinery · Est. 1981 · Trust A · Hiring 55, 1 new
Headquartered in Tokyo, Japan, Mitsubishi Heavy Industries (MHI) is a global multinational engineering, heavy machinery, and technology corporation. The company specializes in a diverse range of foundational sectors, including energy systems, logistics and infrastructure, industrial machinery, aerospace, and defense. Through an expansive portfolio comprising advanced power generation equipment, decarbonization and carbon-capture solutions, marine vessels, commercial aircraft components, and defense systems, it delivers critical engineering solutions, technological innovation, and high-performance infrastructure to industrial and governmental clients worldwide.
No named decision-maker yet.
Careers mailbox is known

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 135, 8 new
HQ: Munich, Germany · Information Security · Broadcasting · Military Communication · Test & Measurement Instruments · 201-500 employees · Est. 1933 · Hiring 135, 8 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 · 3 hours ago 21 days ago Fading · 26%

Application Engineer, Test & Mesurement

In office (Tokyo, Japan)
Apply
Verified live · 3 hours ago 21 days ago Fading · 26%

Application Engineer, Test & Measurement

In office (Tokyo, Japan)
Apply

Skydio

skydio.com
skydio.com · HQ: San Mateo, United States · Military Drones · Drone AI · Drones & UAVs · Computer Vision · 201-500 employees · Est. 2014 · Trust B · Hiring 171, 22 new
HQ: San Mateo, United States · Military Drones · Drone AI · Drones & UAVs · Computer Vision · 201-500 employees · Est. 2014 · Trust B · Hiring 171, 22 new
Skydio is an American drone company founded in 2014 by MIT engineers who had worked on Google's Project Wing, and it built its reputation on autonomous flight rather than on airframes. Its aircraft navigate and avoid obstacles using onboard computer vision without relying on satellite positioning or a skilled pilot, which is what allows an untrained operator to inspect a bridge or clear a building. Headquartered in San Mateo, it exited the consumer market in 2023 to concentrate entirely on public safety, defence and infrastructure inspection, where it is the largest American drone manufacturer.
Abraham Bachrach · Co-founder and Chief Technology Officer · decision-maker
Adam Bry · Co-founder and Chief Executive Officer · decision-maker
Bastiaan Janmaat · Director
Michael Slade · Director
Careers mailbox is known
Verified live · 2 hours ago 24 days ago Likely open · 56%

Solutions Engineer - Japan

≈ $37k – $99k per year (Estimated) · Junior · 2+ years exp · In office (Tokyo, Japan) · Bachelor's Degree · Full-Time · Junior · Japanese: C2
Apply
Verified live · 2 hours ago 2 months ago Fading · 34%

Deployment and Support Engineer (Japan)

Hybrid (Tokyo, Japan) · Bachelor's Degree · Full-Time · Japanese: C1 · English: C1
Bash
Python
DevOps
Wi-Fi
Linux
WebRTC
Rest API
Apply
nas.co.jp · HQ: Fuchū, Japan · Air Traffic Control · Electronic Warfare · C4ISR · Trust B · Hiring 8
HQ: Fuchū, Japan · Air Traffic Control · Electronic Warfare · C4ISR · Trust B · Hiring 8
NEC Aerospace Systems is an NEC group company developing systems, software and hardware for defence, aviation and space. It builds electromagnetic analysis, air traffic control and space domain awareness systems, mainly for Japan's Ministry of Defense. The company is headquartered in Fuchū, Tokyo, Japan.
No named decision-maker yet.
No careers mailbox known
$460k per year · In office (Fuchū, Japan) · Full-Time
C#
C++
Python
AI/ML
LLM
Apply
Open 127 daysVerified live · 4 hours ago 5 months ago Long shot · 5%

【航空シ】航空管制および防衛関連システムのソフトウェア開発のリーダー

$38k per year · In office (Fuchū, Japan) · Full-Time
C#
C++
Apply

Mattermost

mattermost.com
mattermost.com · HQ: Palo Alto, United States · National Security · Military Communication · Team Communication & Collaboration · 201-500 employees · Est. 2016 · Hiring 10
HQ: Palo Alto, United States · National Security · Military Communication · Team Communication & Collaboration · 201-500 employees · Est. 2016 · Hiring 10
Mattermost is an open source collaboration platform company headquartered in Palo Alto, California, and founded in 2016. The company develops a self-hosted messaging, workflow, and incident response product that organizations run inside their own infrastructure instead of a public cloud service. It focuses on defense, government, and security conscious technology customers that need full control over where their operational data resides.
Ian Tien · Executive Officer, Director · decision-maker
Tomasz Tunguz · Director
Shvetank Jain · Director
Ali Rowghani · Director
No careers mailbox known
Verified live · 1 hour ago 3 months ago Likely open · 62%

Technical Sales Engineer/ Lead

≈ $46k – $111k per year (Estimated) · Lead · Tokyo · Remote (Japan) · Bachelor's Degree · Staff · English: C1 · Japanese: C2
Apply

Skills these roles ask for

Python 14C++ 14Java 10VHDL 7Siemens ModelSim 7LTspice 7Windows 6Linux 5C# 4JavaScript 3SQL 3Azure 3AWS 3MATLAB 2VMWare 2Docker 2

Where the roles are

Tokyo 27Yokohama 15Fuchū 7Kobe 5Komaki 4Nagoya 3Nagasaki 3Minato 1Mito 1Sagamihara 1

Defence tech roles that fit you

Tell us your field once: new roles that fit it arrive in your matches every day.

Questions

Can a foreigner apply for these roles?

68 of the 69 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?

Mitsubishi Heavy Industries (34), Nippon Avionics (15), NEC Aerospace Systems (7), Palantir Technologies (3), Rohde & Schwarz (3).

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: 69 live postings on employers' careers boardsUpdated 1 Nov 2026MethodologyJSONCC BY-SA 4.0