The Role
Develop backend interfaces and APIs integrating Money Forward HR systems with payroll, attendance, accounting, and related services. Design permissions for cross-entity operations, build secure and maintainable backend services, and support testing, documentation, and operations. Collaborate with product and platform teams to deliver scalable end-to-end workflows. The role may also involve frontend development, GraphQL integrations, Kubernetes operations, database work, and applying AI-assisted development tools.
Summary Generated by Built In
Position overview
This role is responsible for developing interfaces with Money Forward systems in the HR system domain, while helping build the overall HR system structure involving payroll and attendance.
The engineer will work on system integration and platform development across HR-related systems, HR system contributing to a scalable structure that connects payroll, attendance, and related Money Forward services. This role involves close collaboration with related product and platform teams to ensure reliable integrations and smooth end-to-end business workflows.
Responsibilities
- Develop a mechanism or set of permissions is needed to enable cross-entity operations within MF group.
- Development of an interface (I/F) to connect the current systems
Tech stack
- Backend
- Ruby
- Ruby on Rails
- GraphQL
- Infrastructure
- Service Platform (Kubernetes)
- MySQL 8.0 / Aurora MySQL 3
Requirements
Required skills and experience
Must Have:
- Experience developing applications with Ruby on Rails.
- Experience designing and developing APIs for system integrations.
- Experience using AI-assisted development tools to design, implement, test, and document backend APIs.
- Ability to build secure, reliable, and maintainable APIs that connect Money Forward systems with accounting, payroll, and attendance systems.
- Ability to design, implement, test, and operate backend services.
- Understanding of web application architecture and relational databases.
Nice to Have:
- Experience with modern frontend development.
- Experience building user-facing applications using TypeScript or similar technologies.
- Understanding of frontend application design, maintainability, and user experience.
Preferred skills and experience
- Experience developing or integrating GraphQL APIs.
- Experience designing RESTful APIs or other backend interfaces for cross-system integration.
- Experience applying AI tools or LLM-based solutions to improve backend development, API documentation, test generation, or operational efficiency.
- Basic understanding of AI/ML concepts, prompt engineering, or practical use of generative AI in software development.
- Understanding of API authentication, authorization, access control, and permission design.
- Experience developing HR systems
- Experience operating services on Kubernetes-based platforms.
- Experience with MySQL or Aurora MySQL.
- Experience collaborating across multiple product and platform teams.
Ideal candidate profile
The ideal candidate is comfortable working across backend, frontend, and infrastructure concerns, communicates effectively with cross-functional teams, and is motivated to improve both product value and system quality.
Skills Required
- Experience developing applications with Ruby on Rails
- Experience designing and developing APIs for system integrations
- Experience using AI-assisted development tools to design, implement, test, and document backend APIs
- Ability to build secure, reliable, and maintainable APIs connecting Money Forward systems with accounting, payroll, and attendance systems
- Ability to design, implement, test, and operate backend services
- Understanding of web application architecture and relational databases
- Experience with modern frontend development
- Experience building user-facing applications using TypeScript or similar technologies
- Understanding of frontend application design, maintainability, and user experience
- Experience developing or integrating GraphQL APIs
- Experience designing RESTful APIs or other backend interfaces for cross-system integration
- Experience applying AI tools or LLM-based solutions to backend development, API documentation, test generation, or operational efficiency
- Basic understanding of AI/ML concepts, prompt engineering, or practical use of generative AI in software development
- Understanding of API authentication, authorization, access control, and permission design
- Experience developing HR systems
- Experience operating services on Kubernetes-based platforms
- Experience with MySQL or Aurora MySQL
- Experience collaborating across multiple product and platform teams
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The Company
What We Do
Money Forward, Inc. is a Japanese SaaS financial technology company that develops personal finance management tools and cloud-based services for individuals, businesses, accounting professionals, and financial institutions. Its platform supports household finance, accounting, tax, expense management, payments, and other back-office operations. The company serves consumer and corporate markets through integrated digital products and aims to operate as a comprehensive technology-driven financial platform.
