Role Overview

The FACTORY Business Support Group develops backend systems that support the operations of TOYOTA UPGRADE FACTORY — a service enabling customers to add genuine Toyota and Lexus options to their vehicles post-purchase. As a Backend Software Engineer, you will build the systems that power dealer workflows, order management, and operations support.

Responsibilities

• Design and develop backend APIs and business logic for FACTORY operational systems
• Build integrations with dealer management and logistics systems
• Write and maintain automated tests; ensure high code quality
• Participate in technical design discussions and code reviews
• Collaborate with frontend engineers, product managers, and business operations
• Monitor and improve system reliability and performance

Requirements

• 3+ years of backend software engineering experience
• Proficiency in one or more of: Java, Kotlin, Go, Python, Node.js
• Experience with REST API design and development
• Familiarity with relational databases (MySQL or PostgreSQL)
• Experience deploying on AWS
• Business-level Japanese

Nice to Have

• Experience with order management, dealer management, or ERP systems
• Knowledge of event-driven or batch processing patterns
• English communication skills

What We Offer

• Competitive salary
• Tokyo office with hybrid work arrangements
• Work on backend systems supporting a growing post-purchase vehicle upgrade service