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Back-End Developer

Morgan Mckinley — Japan · Posted ~21 hours ago

Senior

Skills

Backend Development API Development System Design Troubleshooting Production Operations Backend APIs Message Consumers Batch Processing AI-assisted development

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Summary ✨ AI‑Generated

Join a large-scale internet technology organization as a backend developer responsible for designing, developing, testing, and operating high-volume services. You will work on APIs, message processing, batch systems, reliability improvements, technical debt, and production troubleshooting.

Highlights

Build backend systems serving millions of transactions, work with high-concurrency architecture, tackle complex production challenges, and take ownership of impactful engineering initiatives.

Description

As Japan’s premier internet services leader, this enterprise offers engineers the unique opportunity to build and scale backend architectures that power millions of daily transactions. Candidates will join an innovative, forward-thinking tech culture leveraging cutting-edge tools, AI workflows, and global engineering practices. It is an ideal environment for ambitious engineers who want to drive massive impact, master high-concurrency systems, and continuously elevate their technical leadership within a dynamic, supportive organization. Key Responsibilities Design, develop, test, and release backend features aligned with key business requirements.Operate and maintain critical checkout APIs, message consumers, and batch processing systems.Perform system troubleshooting, root cause analysis, and production issue resolution.Address technical debt and continuous system enhancements to ensure high reliability.Lead engineering initiatives while collaborating closely with Product Managers, QA, and cross-functional teams. Required Skills 5+ years of full-stack engineering experience utilizing Java EE.Proven track record in designing, developing, and operating RESTful Web APIs for large-scale online systems.Practical development experience using containerization technologies such as Docker.Experience utilizing AI technologies to optimize and improve the software development lifecycle. Language English: Business LevelJapanese: Not required Benefit Enjoy daily convenience with an on-site employee food hall offering provided meals.Work comfortably in a modern, casual dress environment.Maintain a healthy balance through a flexible hybrid model.Receive monthly transportation allowance.Comprehensive health, labor, and employment insurance coverage.