Java Developer Japanese Jobs in San Francisco, CA

Job Summary:
Rakuten International is a division of Rakuten Group, Inc., a Japanese global technology leader in services that empower individuals and businesses. They are seeking a proactive Quality Engineer to ensure the quality of web applications, mobile apps, and backend services, leveraging AI-first workflows and automation to drive software excellence.
Responsibilities:
• AI-First Quality Ownership: Own end-to-end quality for assigned features by defining test strategy, leveraging AI to generate test coverage, and ensuring continuous validation across the development lifecycle. Partner with cross-functional teams to align on product goals and release readiness.
• Intelligent Risk Detection: Use AI-assisted analysis to evaluate requirements, system behavior, and production signals to identify edge cases, gaps in coverage, missing telemetry, flaky automation, and environment drift early.
• AI-Driven Automation: Build, maintain, and optimize UI, API, and end-to-end automated tests using Python, Java, or JavaScript/TypeScript. Actively leverage AI coding assistants and autonomous test agents to improve efficiency, scalability, and coverage.
• Infrastructure & CI/CD: Deploy and validate services in containerized environments (Docker, Kubernetes). Integrate AI-driven testing into CI/CD pipelines to enable continuous, automated quality signals on every change.
• Agent-Based Execution & Validation: Utilize AI agents to execute user flows, perform exploratory testing, and validate UI and system behavior across environments. Apply AI-driven visual validation against Figma designs to ensure design-to-implementation fidelity.
• Backend & Performance Testing: Validate complex backend behavior, including event-driven workflows, message queues, async pipelines, and data integrity. Use AI-assisted techniques to detect anomalies, validate data integrity (SQL), and surface system-level issues.
• Quality Signals, Triage & Advocacy: Leverage AI to triage defects, cluster failures, and identify root causes. Communicate insights clearly to stakeholders and advocate for AI-first quality practices across the SDLC.
Qualifications:
Required:
• Proficiency in Python, Java, or JavaScript/TypeScript, with the ability to use LLMs to generate and maintain test automation.
• Experience testing OpenAPI/REST APIs (GraphQL a plus) and validating data using SQL.
• Proven experience integrating LLMs and AI agents into QA workflows to drive automation and efficiency, including AI-assisted test generation, failure analysis, and defect triage.
• Experience leveraging Figma as a source of truth and applying AI agents (e.g., Claude) with platforms like BrowserStack to automate UI validation.
• Ability to generate tests from design, perform agent-driven exploratory testing, and use AI for semantic visual validation and intelligent defect triage across devices and browsers.
• Working knowledge of CI/CD systems (e.g., GitHub Actions) and containerized environments (Docker and Kubernetes), with the ability to troubleshoot common test environment failures.
• Ability to develop practical, feature-level test strategies, clearly communicate coverage and risks, and demonstrate an eagerness to adopt emerging AI-driven engineering practices.
• 3 to 5 years of experience in Quality Assurance.
• 2+ years of experience in Test Automation (Web/Mobile/API).
• 1+ years of experience with Docker/Kubernetes.
• Bachelor’s degree in computer science, Engineering, or related field (or equivalent experience) Required.
Company:
By championing smart ways to save at thousands of stores, Rakuten makes it easy to get a great deal—anytime, anywhere. Founded in 1998, the company is headquartered in San Francisco, USA, with a team of 501-1000 employees. The company is currently Late Stage.