Backend Developer (Kotlin/Java + Spring Boot), Money Forward X, Tokyo

About Us

At Money Forward, we are dedicated to transforming financial services using advanced technology. With over 50 services for individuals and businesses, including popular products like Money Forward ME and Money Forward Cloud, we help make managing money easier. We use cutting-edge “account aggregation” technology to gather user data, turning it into useful insights for our customers.

As announced in "Money Forward AI Vision 2026(https://www.linkedin.com/pulse/full-transcript-money-forward-announced-ai-strategy-vision-phwoc/?trackingId=sl33ZIGRFzkBJJv7wI9qsg%3D%3D)," we view AI utilization not as an option, but as a prerequisite for sustainable enterprise growth. Guided by executive leadership, we are accelerating an all-in AI shift across the entire company.

Rather than treating AI merely as an efficiency tool for existing tasks, we fundamentally ask, "How should this process exist in the first place?" to reconstruct products and workflows optimized for the AI era. Powered by a rich, active user base and vast datasets, we strictly practice AI-driven development engineered backward from maximum user value. Internally, we actively integrate generative AI tools into our development environments, driving radical productivity gains and rapid product iterations.

We are looking for motivated engineers and product team members who want to embrace new technologies without fear of failure in this period of global trial and error—and who are truly passionate about building high-impact AI services grounded in massive real-world data.

About the Role

We are seeking an enthusiastic and skilled Intermediate-level Kotlin (Server-side) with Spring Boot Developer to join our dynamic team. In this role, you will be responsible for developing and maintaining server-side applications using Kotlin and the Spring Boot framework, focusing on building and scaling our secure OIDC authentication platform. You will work closely with our cross-functional teams to design, implement, test, and deploy high-quality software solutions that meet our clients' needs.

Responsibilities and Duties

• Design and develop robust, scalable, and secure server-side applications using Kotlin and Spring Boot.

• Collaborate with product owners, software architects, and other team members to understand requirements and translate them into technical solutions.

• Write clean, efficient, and maintainable code, following best practices and coding standards.

• Conduct code reviews and provide constructive feedback to ensure code quality and adherence to coding guidelines.

• Troubleshoot and debug issues, identify root causes, and implement effective solutions.

• Collaborate with front-end developers and UI/UX designers to integrate server-side functionality with the user interface.