IAM Engineer

Money Forward

Backend

Ruby

Security

About this role

This role develops Money Forward's shared identity platform, supporting authentication, authorization, tenant management and related services across its products. The team works mainly in English and collaborates with product, platform, security, legal and customer-support stakeholders.

Responsibilities include designing and operating Money Forward ID, advising product teams, leading identity integrations and migrations, introducing authentication technologies such as passkeys, and strengthening security and governance. The stack includes Ruby, Kotlin, GraphQL, MySQL, Kafka, Redis, AWS, Docker and Kubernetes.

Applicants need at least seven years of web-application development, substantial Ruby or Kotlin experience, identity-provider or authentication-system knowledge, database-design and cloud-infrastructure experience, and a relevant bachelor's degree. Business English is required, with TOEIC 700 or equivalent evidence or testing used as a guide. The current posting does not specify a Japanese-language requirement. Hybrid work normally requires at least two office days weekly.

This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.