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Salary
$44k – $63k per year
Location
In office (Tokyo)
Seniority
Middle · 3+ years exp
Employment
Full-Time

First seen by Alion on Sep 3, 2026. Solafune scores C on the Alion truth index.

Overview
Company
Impact
Profile match
Solafune integrates multi-domain intelligence across space, cyber, and physical layers to create actionable, sovereign decision systems.

Description

Solafune is a technology company that tackles social challenges faced by government agencies, corporations, and international organizations using AI and data analysis. As our business grows, the scope of our technology projects is rapidly expanding, including government-related projects, joint projects with large corporations, and our own products and R&D.

The technologies required vary depending on the project, and often the necessary technical areas only become clear once the project is concrete, encompassing AI, Software, Data, Cloud, Security, and more.

Therefore, we are currently seeking a Software Engineer who possesses a foundation in Software Engineering/Computer Science, and who can quickly grasp new technologies as needed to advance development, without being limited to a specific technical area.

It's not necessary for one person to be proficient in all technologies. We expect each individual to have their own area of expertise, learn across disciplines as needed, and work as a team to solve a wide range of technical challenges.

Job Description

Depending on the project, experience, and expertise, you will be responsible for the following tasks:

  • Software development for government and public sector projects
  • Technical verification, design, and development for joint projects with large corporations
  • Software development for in-house products and R&D
  • System and application development combining AI, Software, Data, Cloud, etc.
  • Design and development of APIs, backends, data processing platforms, etc.
  • Series of development from PoC to implementation and operation
  • Research, verification, and introduction of new technologies required for projects
  • Collaboration with engineers, research teams, business side, etc.

Attractiveness of this position

  • Opportunity to tackle a wide range of challenges without being limited to a specific technical domain: You will work on different technical challenges for each project, not just specific products or technologies. You can leverage your expertise while expanding your technical range into new areas such as AI, Data, Cloud, and Security.
  • Opportunity to participate in projects with significant social impact: Through projects with government agencies, large corporations, and international organizations, you can connect technology to solving real-world social problems.
  • Opportunity to be involved from problem setting to implementation: You can not only implement predetermined specifications, but also work with the team to consider technical solutions for problems where the solution has not yet been determined, and proceed to verification and implementation.

Desired Candidate Profile

  • Strong curiosity about technology itself and enjoys learning new fields
  • Having expertise in one area, but able to work across those areas when necessary
  • Ability to think independently and move development forward even when requirements are not fully defined

Requirements

  • At least 3 years of practical experience in software development
  • Basic knowledge of Computer Science / Software Engineering necessary for software development
  • Experience in proactively leading development, including design and implementation, and experience in team development
  • No resistance to reading and writing technical information in English, using translation tools, etc.

Preferred Experiences

  • Development experience utilizing AI / Machine Learning
  • Backend / Web Application development experience
  • Data Engineering / Data Analysis experience
  • Cloud development experience using AWS / GCP / Azure, etc.
  • Development and technical experience in the Security field
  • Development experience utilizing LLM / AI Agent, etc.
  • Development experience using AI Coding Tools such as CloudCode and GitHub Copilot
  • Experience in initiating projects in personal development, research, etc.
  • Experience leading projects and development
  • English oral communication skills

We are looking for:

  • Someone with a strong curiosity for technology itself and who enjoys learning new fields
  • Someone who has their own area of expertise but can work across areas as needed
  • Someone who can think for themselves and move development forward even when requirements are not completely finalized
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