QA Lead Engineer - Business Support Development Department (BSD)

Job Description:

Business Overview

Rakuten is one of the leading E-commerce companies in the world. Our mission is to empower people and society through the internet while aiming at becoming the "Global Innovation Company."

Department Overview

The Business Support Development Division (BSD) plays a crucial role in supporting various business operations that occur between users, clients, and Rakuten businesses from a systems perspective. Our division provides diverse services across four key domains: DATA, Business Support/Accounting, CRM, and AI Agent, which builds the foundation for leveraging AI across the entire Rakuten organization. We are committed to pursuing business process optimization and efficiency while delivering high value through our system offerings.

Position:

Why We Hire

As our systems scale continues to expand, robust quality management has become a strategic priority. We are looking for a Quality Assurance Lead to drive improvements in our testing processes and take end-to-end ownership of quality management across Business Support Services.

In this role, you will establish and maintain consistent quality standards, working closely with users, clients, and cross-functional stakeholders to build a scalable quality assurance framework that meets evolving business needs.

Position Details

- Define and maintain data quality standards and test strategies

- Monitor and report on data quality KPIs, identify trends and root causes

- Work closely with Product Managers, Data Engineers, and Development Teams to define and improve quality-standards across each phase of the data management cycle

- Improve processes through standardized data QA practices to sustain high performance and uplift underperformers

- Manage quality incidents, escalations, and implementation of preventive measures

- Propose, prioritize, and drive quality improvement initiatives

- Assign, review, and develop team members (including outsourced members)

- Manage multiple projects (including onsite and offsite)

- Plan, design, implement, and execute testing (including outsourced team management)

- Maintain quality-related documentation (test specifications and quality reports)

- Prepare daily and weekly reports

Work Environment

The QA team consists of 5 to 10 members and operates in a global environment where both English and Japanese are spoken. Active discussions and exchanges of opinions are encouraged as part of daily QA activities. Regular one-on-one meetings are held to ensure a safe and secure working environment where team members can feel comfortable and supported.

Mandatory Qualifications:

- More than 3 years of experience in test strategy planning, test design, and manual test execution

- Knowledge equivalent to ISTQB Foundation Level

- Ability to read Japanese specifications and communicate in Japanese

- Strong understanding of quality assurance methodologies and best practices

- Experience in defect management and quality metrics tracking

- Practical experience with SQL and foundational knowledge of relational databases

- Understanding of data pipelines and testing experience

- Practical experience in data quality management (accuracy, completeness, consistency, and timeliness)

Desired Qualifications:

- Experience in application development

- Knowledge and experience in the internet services industry

- Experience in API/UI test automation development and non-functional testing

- E-commerce domain knowledge

- Knowledge and experience with data warehouses and data lakes

- Experience with BI tools (Tableau, Looker, etc.) or data visualization tools

- Experience with big data processing platforms (BigQuery, Snowflake, Redshift, etc.)

- Knowledge of data governance and data management

Soft Skills

- A proactive problem-solver who takes initiative to improve situations and engages others to drive change

- Intellectually curious about challenges and able to keep pace with rapidly evolving business strategies

- Strong communication skills

- Continuously seeks new challenges and improvements rather than settling for the status quo

- Values teamwork and delivers results

Other Information:

Additional information on Location

Rakuten Crimson House (Head office)

Additional information on English Qualification

English - Business Level / TOEIC 800 above or possess equivalent abilities

Additional information on Japanese Qualification

Japanese - Business Level / JLPT N3 and can communicate in Japanese

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