Tokyo, Japan
Published on: November 13, 2026
This financial technology business develops digital payment services and platforms that support people’s everyday financial needs. Its international team brings together colleagues from a range of backgrounds, creating a collaborative environment where different perspectives contribute to solving complex challenges.
The organisation is ambitious and entrepreneurial, encouraging people to question established approaches, take considered risks and help shape what comes next. As the business continues to evolve its financial platforms, employees can contribute to high-impact work in a fast-moving sector and develop their expertise alongside talented product and engineering teams. It offers an opportunity to help strengthen the quality and reliability of services used at significant scale.
As a Full-Stack QA Engineer, you will help ensure the quality of a core banking platform renewal project. Working within an autonomous quality assurance team, you will develop and execute test strategies across mobile, web and API services, combining automation with manual testing where appropriate.
You will analyse requirements, design test scenarios and cases, and maintain the test data, tools and environments needed for effective execution. You will also contribute to CI/CD testing workflows, investigate and report defects, and provide clear analysis of quality outcomes. The role includes ownership of designated modules, sharing your expertise with colleagues and supporting junior QA engineers. You will explore AI-assisted approaches to test design and delivery, including validation of AI systems and workflows. The position is based in Tokyo with a hybrid working arrangement and involves working on a banking platform renewal project.
As part of our hiring process, this role may use Keystone AI’s artificial intelligence or automated tools to assist with reviewing and screening applications. These tools support, but do not replace, human judgment in making hiring decisions.
Your application will be considered complete only after you have completed the full registration process on the Keystone AI platform, including creating your profile, uploading your CV, and submitting your application. The AI interview is optional but encouraged and is not required for your application to be considered.
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CGP Group is an affirmative equal-opportunity employer and recruitment firm. We evaluate qualified applicants without regard to race, color, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. Information provided in this advertisement is for recruitment purposes only.