Careers
Supporting the safety of society, work that matters
Come and work
with us
SOLID SOLUTIONS INC. is a specialized trading company working in defense and security — fields that bear directly on the safety of the nation and its people. We are looking for people who bring deep expertise and a strong sense of responsibility, and who find meaning in work that supports the safety of society.
Why join us
A real contribution to society
Work that contributes directly to national security and to people’s safety and peace of mind.
Room to grow
You will build advanced expertise and grow as a professional.
A global outlook
Working with manufacturers around the world gives you a global perspective.
A stable business base
Our business rests on a stable foundation built over more than 20 years of proven results and solid relationships of trust.
Contributing to Japanese industry
Through the defense and security fields, we contribute to the development of Japan’s industrial base and technological capability.
Teamwork
Everyone plays an active part, from experienced specialists to younger colleagues, across a broad range of business.
The people we are looking for
01
Creativity and responsibility
People who can take pride and responsibility in work that underpins the safety of society
02
Eager to learn, eager to live
People who actively acquire specialist knowledge and skills and keep growing
03
Communication skills
People who can communicate smoothly with a wide range of stakeholders
SSI by the numbers
Grow with us, in a place where ability and results are recognized
40.5 yrs
Average age
Includes rehired employees
52 % 48 %
Gender ratio
15 hrs/month
Average overtime
21 Countries
Global reach
+15.8 %
Headcount growth
Past three years
As of October 2026
Careers content
Positions & Requirements
Duties, pay and working conditions for each position
Workplace & Benefits
From our office and workforce data through to our full range of benefits
Now accepting applications
We are accepting applications from experienced professionals.
Please start by reviewing the positions and requirements.
