Backend/Infra Engineer (Radar VR Education Simulator - Gov't Project)

Description Solafune Co., Ltd. is a startup aiming to build a "Planetary Intelligence OS." With satellite data analysis and AI analysis at its core, it is rapidly building a track record of transactions with government agencies in fields such as defense and security, infrastructure monitoring, and environmental monitoring. It is building a robust educational management platform (the foundation for educational management terminals and management processing terminals) that supports VR simulators from behind the scenes. This includes user management and authentication/authorization (OIDC) integration, storage and management of student operation records (retaining more than one week's worth) and learning records, detailed storage of system logs and audit logs, and server infrastructure design based on operation in a network-off (closed network) environment. It supports the backend of a configuration that controls and manages up to 30 student terminals from instructor equipment. Main Job Responsibilities Design and implementation of user authentication and authorization infrastructure (OIDC) (user management, role-based access control) Design and API development of a database for saving and managing operation logs and learning records (storage of student operation records for more than one week) Backend development of management console (Web, etc.) Detailed storage of system logs and audit logs (closed environment) Design of backup mechanism Design and construction of server infrastructure assuming no network connection (supports local autonomous operation when network disconnected) Attractiveness of this job You can demonstrate high technical skills and stability-oriented design as a behind-the-scenes specialist. The satisfaction of using technology to smoothly solve the constraints of a closed environment. Requirements Experience in backend development (APIs, etc.) for web applications (3 years or more) Experience in designing and operating databases using RDBMS Basic knowledge of building and operating Linux servers Understanding of authentication and authorization (OIDC/OAuth2/SAML) Ability to design with a focus on stability while overseeing the entire architecture High awareness of security requirements (audit logs, information integrity) Design attitude that maintains robustness even in closed and restricted environments Tools and product experience Language: Python/Go/Node.js / Container: Docker / RDBMS: PostgreSQL/MySQL, etc. / IdP: Keycloak or Entra ID/Okta Preferred Experiences Integration with OIDC providers (Okta/Keycloak/Entra ID) / System construction in on-premises and closed environments / Design considering audit logs and information security (RMF/supply chain) Recommended qualifications Fundamental Information Technology Engineer / Applied Information Technology Engineer / Cloud-related qualifications / Information Security Specialist We are looking for We are looking for individuals who: Understand the characteristics of government and highly confidential projects and can approach their work with a strong sense of ethics and responsibility. Prioritize information security and compliance, and can thoroughly manage confidential information appropriately. Can perform their duties carefully and honestly, adhering to internal and external rules and security policies. Can flexibly accommodate regular business trips to designated facilities within Tokyo. Are comfortable working in a secure environment isolated from the network and can concentrate on their work. Can collaborate smoothly with stakeholders and contribute to achieving results as a team. Find fulfillment in highly public missions and have an interest in social infrastructure and security.