Lead development for a spend-management product, shaping product, team, or technology strategy and building scalable backend and frontend systems for financial workflows.
About this role
This Web Engineer joins the team behind freee Accounting, a core product in freee’s integrated cloud platform for small-business back-office operations. The team is renewing the product and its technical foundations, including backend architecture for autonomous AI-agent workflows, domain-model improvements and technical-debt reduction. Working with product managers and designers, the engineer contributes from planning through release across frontend, backend and infrastructure. The work includes evolving API foundations and data models, tuning performance for large datasets and high traffic, and improving codebase maintainability. The role also helps lead the architecture renewal and related development practices. Applicants need experience developing and operating web applications (around three years or more), the ability to understand complex business logic and implement maintainable, extensible code, and experience identifying code smells or technical debt and improving quality through refactoring. Experience actively using AI development-assistance tools such as Claude Code to improve development speed or quality is also required.
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