Product Security Engineer

This Product Security Engineer role covers security for Ubie’s products and internal systems. Ubie develops the symptom-search engine Ubie and the healthcare-institution service Ubie Medical Navi. The posting states that these products serve more than 12 million monthly active users and have been adopted by more than 1,800 medical institutions, making the protection of health and medical data an important part of the product and business context.

The role is responsible for designing and implementing security measures for products and infrastructure, including security architecture, system hardening, threat modeling, and vulnerability management. The engineer will work with product development teams and business-side stakeholders to improve security while maintaining development speed. The scope also includes identifying and addressing risks specific to generative AI, strengthening certification foundations such as ISMS, and building an incident-response structure.

When security incidents occur, responsibilities include response, cause analysis, development and implementation of measures to prevent recurrence, and related follow-up. The role also includes preparing and delivering security education and training for product development teams, monitoring current developments in security technology, and proposing appropriate countermeasures.

The position is expected to work closely with executives and product teams and to lead security-related initiatives across multiple areas. The stated scope of duties covers all work designated by the company, with the possibility of reassignment to any company duty. The work location is 5F, Nihonbashi Life Science Building 4, 3-8-4 Nihonbashi-Honcho, Chuo-ku, Tokyo; the posting also states that the location may change to a place designated by the company.

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