Senior Software Engineer – QA Platform Development

**About the company:** Cybozu Chuo-ku, Tokyo Our four key products are used daily by over 175,000 companies and non-profits worldwide. As we continue to expand our business globally, we’re looking for individuals from all walks of life, with unique and diverse life stories and lived experiences. **Responsibilities:** Build and maintain robust testing platforms and automation frameworks for web and mobile applications (Android & iOS). Automate end-to-end test scenarios for critical user flows and system validation. Ensure scalability and reliability through load, performance, and cross-platform testing. Perform manual testing for complex scenarios where automation is not feasible. Maintain clear and comprehensive test documentation. Integrate automated tests into CI/CD pipelines and collaborate with the team. Requirements Minimum 5 years of professional experience in B2B software development. Strong coding skills in TypeScript and Python. Strong debugging, analytical, and problem-solving skills. Passionate about test automation with a strong ability to apply creative thinking to solve testing challenges. Professional English communication skills. Nice to haves While not specifically required, tell us if you have any of the following. Experience with automation tools (e.g., Selenium, Appium, Playwright, and Espresso). Experience in the implementation of automated end-to-end (E2E) test frameworks. Knowledge of API testing (Postman, RestAssured, gRPC). Experience with performance/load testing (e.g., JMeter, Locust, LoadRunner). Exposure to modern frontend stacks such as React. Experience in applying AI/ML techniques in testing. Familiarity with web communication protocols (gRPC, OAuth2/OIDC). Infrastructure experience with Kubernetes, Docker, CI/CD, and cloud platforms. Compensation ¥8,000,000 ~ ¥12,000,000 annually. APPLY FOR THIS POSITION DO YOU NEED MORE INFO? ASK A QUESTION **Requirements:** Minimum 5 years of professional experience in B2B software development. Strong coding skills in TypeScript and Python. Strong debugging, analytical, and problem-solving skills. Passionate about test automation with a strong ability to apply creative thinking to solve testing challenges. Professional English communication skills. **Nice to have:** While not specifically required, tell us if you have any of the following. Experience with automation tools (e.g., Selenium, Appium, Playwright, and Espresso). Experience in the implementation of automated end-to-end (E2E) test frameworks. Knowledge of API testing (Postman, RestAssured, gRPC). Experience with performance/load testing (e.g., JMeter, Locust, LoadRunner). Exposure to modern frontend stacks such as React. Experience in applying AI/ML techniques in testing. Familiarity with web communication protocols (gRPC, OAuth2/OIDC). Infrastructure experience with Kubernetes, Docker, CI/CD, and cloud platforms. **Compensation:** ¥8,000,000 ~ ¥12,000,000 annually. APPLY FOR THIS POSITION DO YOU NEED MORE INFO? ASK A QUESTION