Web Application QA

Overview

Web Application QA Jobs in Setagaya, Tokyo, Japan at SMALL WORLD / Work in Japan?

Title: Web Application QA

Company: SMALL WORLD / Work in Japan?

Location: Setagaya, Tokyo, Japan

Responsibilities 1 :

• Enterprise Expansion: Reach every Rakuten business unit, transforming service operations with AI at scale.
• Capability Multipliers: Embed AI across Rakuten’s core functions – shopping personalization, fintech underwriting, logistics orchestration, content discovery, and more.
• Externalization: Package Raptor as a standalone CCaaS and AI-platform offering, driving revenue beyond Rakuten.
• Portfolio Leadership: Potential to shape Rakuten’s entire AI roadmap – uniting Raptor, RMAA, and other core AI products under a cohesive strategy.

Required Skills 1 :

• Develop and maintain robust, scalable test automation frameworks from scratch.
• Create, maintain, and execute automated test cases using Python, Selenium, and Playwright.
• Collaborate with developers, product managers, and DevOps to ensure quality is integrated into the CI/CD lifecycle.
• Define and implement QA best practices, processes, and metrics across projects.
• Analyze test results, identify bugs, and drive continuous improvement in product quality.
• Participate in code reviews, test planning, and estimation activities.
• Drive automation strategy and advocate for testability in design and implementation.
• 5-7 years of experience in software testing with a strong understanding of QA methodologies and testing life cycles.
• Solid hands-on experience in automation testing, including framework creation and enhancement.
• Proficient in Python programming and automation toolsets including Selenium and Playwright.
• Experience working with CI/CD tools such as Jenkins, GitLab CI, or GitHub Actions.
• Strong analytical, debugging, and problem-solving skills.
• Excellent communication and documentation abilities.
• Fluent English & Japanese language skills required.

Desired Skills 1 :

• Exposure to Large Language Models (LLMs) and understanding of AI/ML testing use cases.
• Familiarity with AI-assisted development tools such as GitHub Copilot and Cursor.AI.
• Experience with performance testing tools and/or security testing tools is a plus.
• Knowledge of containerization (Docker) and cloud-based environments (AWS, Azure or GCP).

Language Skills 1 :

• Japanese : Daily conversation level
• English : Business level (TOEIC 800 or higher etc…)